The Logitech company name has always been associated primarily with expensive premium mice. But the trend in recent years towards the company’s deepening into the segment of budget peripheral solutions has brought sadness to many admirers of its products. This was partly compensated by the appearance of the new gaming G series, but not everyone wanted to buy a gaming mouse just to get advanced functionality and not use its full capabilities. But now the company’s product line has begun to gradually refresh itself and we simply could not help but pay attention to the appearance of a new manipulator in it - MX Master, a successor to the traditions of the famous MX Revolution and Performance Mouse MX, which embodies all the latest achievements and technological developments of Logitech.
Specifications
| Manufacturer | Logitech |
| Products webpage | logitech.com |
| Model | MX Master |
| Interface | Wireless (USB) |
| Type | Office |
| Sensor type | Laser |
| Sensor model | Pixart PMW3806DM-BMQF |
| Resolution, cpi | 400 / 600 / 800 / 1000 / 1200 / 1400 / 1600 |
| Number of buttons | 7 buttons (left, middle, right, forward, backward, wheel mode change, bottom button) |
| Maximum acceleration, g | - |
| Height of separation from the surface (LOD), mm | 3 |
| Maximum speed, m/sec | 2,4 |
| USB port polling frequency, Hz | 125 |
| Frame rate, fps | - |
| Internal memory, KB | - |
| Scroll | 2 |
| Scroll vertical/horizontal | +/+ |
| Wireless receiver type | Nano-USB transmitter (Unifying) |
| Wireless protocol/range (m) | 2.4 GHz + Bluetooth 4.0/10 |
| Nutrition | Lithium battery (500 mAh) |
| Ability to change weight | - |
| Possibility of adjusting the shape of the case | - |
| Housing surface material | Plastic |
| Color | Black Brown |
| Backlight | Yes |
| Backlight zones | Charge level and connection channel indicator |
| Leg material | Teflon |
| Software | + (Logitech Options) |
| Dimensions, (L x W x H) mm | 126 x 86 x 49 |
| Weight, g | 152 |
| OS Compatibility | Windows 7 / Windows 8 / Mac OS X 10.8 or later |
| Additionally | Inertial scrolling with automatic mode change, rechargeable battery, Darkfield technology (sensor works on any surface) |
Delivery and configuration
The Logitech MX Master comes in a beautiful black box with a photorealistic image of the mouse on the front. On the sidewalls information about the scope of delivery is provided in 24 languages. The front cover of the box tilts to the left and right on its back you can see schematic instructions for connecting the mouse. Through the transparent window you can admire the MX Master itself in person, but you won’t be able to try it on with your hand.
At the back, in English, French, Italian and German, the main advantages of the manipulator are described.
The package includes a mouse, a Logitech Unifying receiver, a charging cable, and documentation.
Appearance and Design
The appearance of the Logitech MX Master cannot be called flashy, but it looks rich. This is facilitated by the combination of matte black and brown-golden surface shade. The supporting part of the top panel, where the palm rests, is made of rough soft-touch plastic, which to the touch can even be confused with real leather. The left and right buttons are made of smooth plastic. They operate very responsively, with a clearly audible click.
Since the mouse is wireless, it requires a battery to operate. The power source in this case is a 500 mAh lithium battery. According to the manufacturer, it should be enough for approximately 240 hours of continuous operation. It will take about three hours to fully charge, and recharging for just four minutes is enough to keep the mouse working for a whole day. The charging socket with a Micro-USB connector is located in the front of the mouse, where the cable usually exits in wired pointing devices.
The included charging cable is 1.3 meters long, with a USB connector on one side and a MicroUSB connector on the other, and is not braided. But it has a Velcro fastener that is convenient for transportation. The mouse is not capable of working via the cable; it only charges the battery, which is accompanied by the filling of the corresponding indicator scale.
The mouse body has a high rise in the middle to provide the most comfortable position for even the largest palms. The left side has a soft-touch insert that provides reliable fixation and support for the thumb. The insert is stylized with an interesting pattern consisting of polygonal shapes. To the left of it there is a three-dot battery charge indicator (three green dots - 100% charge, two - 66%, one - 33%, one red - less than 10% charge). Just above there is a light horizontal scroll wheel that does not have locking positions (there is no button below it either). Behind the wheel there are two soft forward/backward keys that do not make a click when pressed.
The right side of the mouse has no keys and is heavily angled to provide an ergonomic hand position. On the sidewall there is also a pattern in the form of a polygonal texture.
The aft part of the mouse body consists entirely of ornate curves, putting together a unique and easily recognizable shape of the manipulator.
The Logitech MX Master's vertical scroll wheel is perhaps the most innovative part of the mouse. Scrolling on it can be done in two modes. In the usual case - with clearly distinguishable fixation positions. Or in inertial - when the wheel is not fixed and rotates freely, maintaining inertia for a long time. This is very helpful when scrolling through long text documents and web pages. But we've seen this before, and the innovation is different. Namely, in the way of switching modes. The fact is that the wheel lock is electromagnetic and has a built-in acceleration sensor. When you turn on the power of the mouse, a characteristic click is heard - the latch is activated and the manipulator operates in normal mode. Behind the scroll wheel is a small square button. By clicking on it, we switch to inertial mode or back. But there is also a SmartShift function. After its activation, scrolling is carried out in normal mode, and when the wheel moves suddenly, the lock is released and the inertial mode is activated. After the wheel stops, the lock is turned on again. In terms of user experience and overall comfort, it's amazing. The middle button under the wheel has a medium pressing force and a clearly distinguishable feedback with a click.
The base of the mouse has a dense layout. There are two large Teflon feet on the sides, and two smaller ones in the front and back. Then there is a power switch slider, a round connection button and a laser sensor window. Three numbers, which are indicators with white backlight, indicate one of the three channels to which the mouse is connected. This is done by pressing the next round button. The indicators fade out as soon as the mouse is lowered to the surface, so you don’t have to worry about wasting energy. By the way, the laser sensor, which is made using Logitech Darkfield technology, can work on almost any surface (including glass more than 4 mm thick). Behind this marketing name lies a rather exclusive Pixart PMW3806DM-BMQF sensor, the specifications for which you are unlikely to find on the Internet.
The lower side thumb rest is also a button to which you can bind either a single command or four command gestures, activated by pressing this key and moving the mouse in any of the four directions. The asymmetrical ergonomics of the mouse are designed for right-handers.
Logitech MX Master solves the age-old dilemma of wireless mice for laptops (especially ultrabooks) and desktop PCs, since it works in two bands at once. The mouse can connect in the 2.4 GHz band to any USB Unifying receiver, or use Bluetooth 4.0 and Bluetooth Smart technology to connect within a radius of up to 10 meters from the source. There are three communication channels to choose from, switched by a button on the base of the mouse. For each channel, you can establish a separate connection using any of the methods mentioned above. In other words, the mouse can be used without problems with three devices, spending the minimum possible time on connection.
Proprietary software
Logitech MX Master uses proprietary Logitech Options software to fine-tune and remap Logitech MX Master keys. Unfortunately, it is not available for legacy operating systems Windows Vista and Windows XP and can only be used starting from Windows 7 or Mac OS X 10.8. The driver interface looks beautiful and clear, thanks to the simple visual style used here. The first thing that greets the user is the mouse button settings screen. Available for remapping are the horizontal scroll wheel, forward and back keys, the middle mouse button, the wheel mode switch, and the bottom button in the thumb rest. The left and right buttons are not reassigned, but their functions can be swapped. It’s a strange decision, considering that you won’t be able to fully use this manipulator with your left hand.
The possible set of commands for reassignment corresponds to standard functions and commands of the operating system. You won't be able to record large macros, but you can enter your own keyboard shortcut as a separate command.
The use of so-called “mouse gestures” allows you to use the sensor not only to position the cursor, but also to execute the necessary commands. Simply hold down the corresponding button and move the mouse in one of four directions. This functionality did not seem very convenient to me, but in some situations it would probably be appropriate.
The Pointers and Scrolling section has some interesting settings. For example, behind the vague name “Pointer speed” there is an adjustment of the sensor resolution ranging from 400 to 1600 cpi in increments of 200 cpi. Everything else is a set of scroll wheel parameters, the meaning of which is quite clear at first glance at the following picture. I will only mention the SmartShift function, which was discussed earlier. The sensitivity of this parameter determines how quickly the scroll wheel must be turned to activate the inertial mode. The “Add Devices” tab is responsible for connecting the mouse via receivers or via Bluetooth.
In additional settings you can view and even update the current firmware version. You can also choose to enable or disable the display of a low battery warning on the screen. The first time such a message appears on the screen, it can cause a mild panic attack in the user.
In the “Software” section you can find out the current driver version and update it if necessary, manually or automatically.
Ergonomics and testing
Using any wireless mouse always starts with connecting it. And here everything is fine with the Logitech MX Master, both when communicating through the native receiver and via the Bluetooth protocol. Just turn on the mouse, and the connection is established instantly. The same can be said about changing the channel. To adjust the mouse to the new receiver, of course, you will have to install software, but the further connection process occurs without interference. The ergonomics of the case can be considered close to ideal, although the high back is unusual at first. According to the type of grip used, the “palm” is best suited. The only thing that can cause discomfort is the side keys located far away. The thumb has to be pulled back significantly to hit them. The best part is the scroll wheels. They are very convenient to use, and I hope that in the future all of the company's models will be equipped with this version of inertial adaptive scrolling. The new Logitech Options software also deserves special praise. This is a huge improvement over SetPoint's legacy interface. The capabilities of the laser sensor installed here cannot be called outstanding, but for the average user they will be more than enough. The most important advantage of the sensor, work on any type of surface, is balanced by average maximum speed, the presence of a low level of trajectory and acceleration linearity, and a low polling frequency. In other words, the Logitech MX Master is poorly suited for active computer games; its purpose is for office use. Battery energy saving is realized by reducing the power supply to the sensor when idle and turns on after three to four minutes without use. The mouse does not fall asleep completely, but after moving it takes about a second to become fully active. At this moment, the cursor may shake and freeze. Charging is organized conveniently; a full battery charge lasted me about a week and a half of active use for 14 hours a day, which is a little more than half of the officially declared maximum operating time.
Results
MX Master - a new mouse from Logitech, was a great success. It combines all the best technological developments of the company in recent years, which make the manipulator unique in its versatility and set of characteristics. This is a very convenient and ergonomic shape of the case made of decent materials. And a lot of buttons and commands, remapped through excellent software. And adaptive inertial scrolling, rechargeable battery and the ability to work on any surface. And support for two wireless protocols at once, combined with the ability to connect to three PCs at once. This is truly a machine of possibilities that anyone who uses a computer a lot in their work will want to have at their disposal. However, it is worth considering that due to the specifics of its sensor and the technical features of wireless communication, the MX Master is poorly suited for use in dynamic games. The only serious drawback of the mouse is its recommended cost, which is likely to be quite high.
The best mouse in the world
Let's continue and finish our acquaintance with the Revolution series of mice from one of the leaders in mouse manufacturing, the company, by considering the older MX model, promoted by the manufacturer as the best mouse in the world. With this positioning, you will have to ask “according to the Hamburg account.”
Before reading this article, I recommend that you familiarize yourself with the younger, mobile model of the series - VX, since some general issues are also discussed there, in particular, control software. They combine an optical sensor with laser infrared illumination (the wavelength of 848 nm is directly indicated on the sensor), a USB radio interface operating at a frequency of 2.4 GHz and the general design concept, the MX is distinguished by a built-in battery with a charger included, more buttons (+1 ) and avant-garde design.
Contents of delivery
In a large box with a hinged lid under a transparent insert there is the mouse itself and the microreceiver, a charger with a power cord (220 V), a user manual and a disk with software are hidden from view. Only the briefest of the advertising inscriptions on the box are written in Russian. There are no real technical specifications on the manufacturer's website.
Mouse design
In a nutshell - futuristic and stylish. The materials look and feel pleasant, the shape is unusual, the color scheme is gray and black. The top surface, which turns into buttons, is painted plastic, dark gray, the sides are made of a darker rubber-like material, not painted. The lower surface is matte black. Around the thumb rest there is an insert of glossy black, slightly transparent plastic. There were suspicions that it would constantly get dirty by hand, but they were in vain. Additional plastic buttons are painted “silver metal” and dark gray. The wheels are metal, with a finely ribbed rubber insert, very pleasant to the touch, the side one is slightly smaller than the top one. All materials and assembly give the impression of quality; nothing creaks or twitches.
The controls are as follows: standard two buttons, almost standard two side “back and forth”, a wheel that, in addition to scrolling, can be pressed in the vertical and lateral directions, a button behind the wheel, and another wheel for the thumb, which, in fact, is a button -a rocking chair with the ability to press, a sort of jog-dial. Considering the standard wheel as four buttons, and the additional one as three, you can (very conditionally, of course) take the number of buttons as 12. At first glance, everything is great, but we’ll talk about the specifics of the software and hardware implementation of control functions further.
At the bottom there are four Teflon legs: a wide one in the front and three small ones in the back, a sensor in the central-outer area and a power switch. As well as a label with technical information.
Ergonomics
I will note that I have a large palm and I like mice that are large and ergonomically shaped, and our heroine belongs to this type. Now (however, for quite a long time) I’m looking for a replacement for my work mouse 1.0 from 1999, it would seem that this is it! But no. The unpleasant thing was the thumb wheel. It is located exactly in the place where the thumb rests with a normal grip and it turns out that it makes it very difficult to grip the mouse comfortably. You have to either bend your thumb at a right angle, or press the mouse with the lower part of its joint to the table by the lower protrusion. It sounds confusing, but once you pick it up it will immediately become clear.
Everything is said about small buttons, edging on the sides of the main buttons and the dream of a wide scroll wheel with raised edges.
The main wheel is somewhat different than in its younger sister; its mechanics are more complex. By default, it is configured so that rotation is without a click, and switching to rotation with a click occurs by pressing the button under the wheel. It seemed more convenient to me to set the default rotation with a click with an automatic transition to free rotation with strong spin. At the same time, the wheel actually spins very quickly, and large documents fly by almost unnoticed. In the sense that if you need not the end of the document, but something in the middle, then tracking this place is extremely difficult. In addition, it is also not always possible to stop immediately. But sometimes this mode is convenient, and in normal mode scrolling works without any complaints - the click is clear and soft. During rapid rotation and other manipulations with the wheel, the tactile sensations are fresh and unusual. It feels like there is a complex, high-tech mechanism living underneath it.
From the FAQ on the manufacturer's website:
Q: “How fast can you spin the incredibly wonderful high-tech Microgear wheel on the world’s best mouse, the Logitech MX Revolution?”
A: "2000 RPM".
Just like that.
Judge for yourself, with such driving characteristics, secondary parts can be neglected. And if you can learn to use the button under the wheel and horizontal scroll in the VX in a week, then in the MX these functions were completely unsuccessful even after three weeks of use. When you try to press the wheel and move it, it almost always scrolls vertically. It’s especially sad that while you can assign a middle key to the button behind the wheel in VX, this is prohibited here, and to open a web page in a new tab you inevitably have to hone your skill of pressing the wheel. At the same time, the link tries to run away from the cursor. Nothing, perhaps this was done specifically to develop fortitude and dexterity of the middle finger.
The side rocking wheel in the form it is implemented is flawless, the pressure is clear, the stroke is small, there are practically no false positives.
Three knives in the back of EVIL
It was necessary to think about convenience before beauty. Make the recess for the thumb not so deep, the edge above it wider, and on this edge place a full-fledged rotating wheel with a button under it and the ability to tilt. The need for forward and backward buttons automatically disappears, and if you give the opportunity to dynamically change the function associated with this wheel, then it will not be worth the price. For example, by clicking on it, you can call up an on-screen menu with a list of functions, scroll to select the one you need, and press again to confirm. And then the wheel will not interfere with work, but will only help. And what prevents you from assigning, among other things, horizontal scrolling, copy-paste, undo-redo and other logical pairs?
SetPoint control software
During operation, versions 3.1 and 3.3 were used under Windows XP and Vista. The “dampness” of the driver is evident for the MX to the same extent as for the VX. The software is described in detail in, let's just talk about the features. First of all, they concern the wheels. For the main one, there is a customizable switch to the smooth (and fast) scrolling mode and the choice of the basic operating mode. The assigned actions and settings are slightly different.
For the side wheel, driver version 3.3 added two new functions: adjusting the sound level and “multimedia”, that is, moving to the next track in the player. To the “task switching” and scaling already available in 3.1. The controls are well thought out, for example, when adjusting the volume, pressing the wheel temporarily mutes the sound, and when zoomed, returns it to the original document size. In XP, I liked the sound adjustment with this wheel more, especially at home, but even here there was a “glitch”. When you turn off the sound, you can then turn the volume down and up as much as you want, the screen will display a scale of the same green color as usual, but until you turn the sound back on by pressing the wheel, you won’t hear anything. The adjustment scale contains 32 divisions, in contrast to 25 for Microsoft keyboards and mice, that is, the control is more accurate and smoother, but in the main mixer of the system the step is 1%, so there is room for improvement. Vista's task switching feature is unrivaled. Rocking the wheel brings up the famous fan of active windows, and pressing selects what's in the foreground. So you can forget about the taskbar.
Support
When clicking on the main link, the company’s website determines the user’s language (whether by IP or OS language) and redirects to the Russian-language page. The translation is competent and completely adequate, navigation is simple and logical, descriptions are easy to find. They are aimed “at the housewife” and are heavily prone to advertising, but the photographs are informative and the system requirements and main characteristics of the products are indicated. Drivers are easy to find; Russian language is automatically offered. But the volume of the driver is not encouraging: version 3.1 “weighs” 42 MB, but 3.3 is already 52 MB (due to software from), despite the fact that the included disk comes with 3.0, which is clearly old.
The manufacturer provides a three-year warranty for the mouse, but this issue should be discussed with the seller when purchasing. Although they do not have the right to give a product a warranty that is less than what is stated by the manufacturer, this happens with us. Obtaining services under a manufacturer's warranty when the seller's warranty has expired often involves a significant number of additional steps.
Exploitation
The mouse was used as a main worker, on a busy schedule for three weeks, at home for a week and at work for two.
Weight is 149 grams, the centering is adequate, there is a balance line in the area of the “back” button. The sensor is shifted to the outer edge, almost along the balance line.
The first charge lasted about two hours, the mouse fits into the charger easily and freely, and looks beautiful with it. Within the first five minutes, the charge is collected to work for about an hour. The charger from the computer is autonomous and plugs into its own outlet. It would be possible to provide a power cord from the USB port for those who do not have enough sockets, otherwise there is nothing more to reproach for. Yes, and it works from 8 V, and not 5, as in USB. Power - half an ampere.
Under the black insert there is a battery charge indicator of four lights, which go out in turn as the energy decreases, the latter also changes in color from green to red upon reaching the 10% mark, and the driver begins to ask to replace the battery, although according to his indications it is corresponds to another whole day of work. It’s logical - it lit up red during the day, and in the evening they put it at the base.
The light is on when the mouse is active and goes off when the mouse falls asleep, after approximately seven seconds of inactivity. Most likely, when falling asleep deeply, because the wheel and buttons do not operate from the first click only when pressed hard, and even when the indicator is on. Falls asleep too quickly! And no control over energy saving modes is available to the user, which is a disgrace! The mouse worked on a full charge for seven working days and stood alone for two more weekends, without being turned off. I wouldn't mind disabling the power saving mode completely so that it can last a day or two on a single charge and never miss a key press. Nothing prevents you from putting the mouse on power at night, so that the idle revolutions of the wheel, spent waking up from hibernation, are not so annoying. And the “sleep” mode cursor is not noticeable; apparently the sensor wakes up very quickly.
The “feet” glide equally well on any surface, however, even after such a short period of use, scratches and abrasions appeared on them.
Basically, you don't need a rug. However, if it is used as a wrist rest, either with or without a thick pad, then it will not become an obstacle to work.
The sensor works well on almost any surface, including a completely black matte table, on which optical mice of the first and second generations were “lost.” However, it doesn’t work on a mirror, in the conference there is a review about poor performance on an aluminum mat “for gaming optical mice,” and he didn’t like the fine-haired flock of the sofa.
It is recommended to place the receiver carefully; when installed in the USB port on the rear panel, the signal is perfectly shielded... by the PC case! Not to the point of complete inoperability, but still. The signal of body parts in its path (leg, etc.) is also good at “quenching” the signal. It is best to place the receiver on the upper right corner of the monitor. In direct visibility conditions, the working distance is at least three meters, depending on the battery charge, with full charge - almost up to five, but uncertain. That is, the radio signal is still a little more powerful than that of VX. The USB port polling frequency was set to 500 Hz, which did not prevent the mouse from responding to polling at an almost standard frequency. It remained stable and only decreased slightly during slow movement, averaging 130 Hz per testing session. There were no sudden unreasonable falls. But with a quick spin of the wheel, we managed to record such an inexplicable splash.
The receiver only works when connected to a USB port; nothing happens in the PS/2 port when connected via an adapter; MX and VX mice and receivers are mutually incompatible. A two-meter long USB extension cable and KVM do not interfere with work; KVM reduces the port polling speed to 125 Hz - the hub built into it does not “overclock”. When connected, there is a composite USB device, then an HID device, and then an MX Revolution mouse, even if it itself is turned off, that is, the brand of the device is hardwired into the receiver. Operating frequency - 2.4 GHz.
The cursor positioning is clear, there were no complaints about the work either in games or in the graphic editor. But I’m not a hardcore gamer, and the mouse is unlikely to suit these people due to the low polling rate of the USB port, the awkward grip due to the side wheel, and the heavy weight.
Prices
The table shows the average retail price of a mouse in Moscow, current at the time you read this article:
| Logitech MX Revolution |
| N/A(0) |
conclusions
In general, the operating impressions are not bad, but contradictory. An awkward position in the hand, a strange “super-wheel” and an eccentric driver spoil the impression of a very beautiful and generally very high-quality mouse. More prestigious than convenient. It earns its money mainly through the image component, and, hopefully, durability. You expect something different from the “best in the world.” It would look great on the desk of a boss who rarely uses a computer. Again, in moments of reflection, Microgear technology and tactile sensations from the main wheel will amuse you a lot; fortunately, on an empty desktop, its rotation will not have any undesirable effect. It seemed to me unsuitable for serious work.
Despite some inconsistencies, the Logitech MX Revolution deserves the site's "Original Design" award.
Advantages
- High-quality materials, high-quality assembly
- Beautiful designer item in hi-tech style
- Lots of buttons, two wheels, all of them can be customized and used, although with reservations
- Long operating time on a single charge
- Rich software options for customizing functionality
Flaws
- Most of the additional controls are not very comfortable to use
- Uncomfortable in the hand
- Unregulated sleep mode power saving cannot be turned off
- The signal is weak: easily shielded, short operating distance
- Incomprehensible “glitches” of the software, moreover, frequent and constant
There have been positive reviews of the Logitech MX Master model. Since I needed a second mouse for the office, I decided to purchase an MX Master to compare these two devices myself. Performance seems to be no longer produced, but you can still buy it on ebay for cheap. But it’s better to take Master right away (oops, spoiler:)
Now, after two months of use, I can describe my feelings.
First, a photo of my zoo:
Top down:
Rapoo V2016 for $15, my first large wireless mouse, I’ve been using it for more than two years, but it’s not a competitor to Logitech, it’s too light and angular
Logitech Performance MX - replaced Rapoo, has been serving faithfully for more than 2 years, considered it the best mouse until I bought the MX Master :)
The hero of today's review is Logitech MX Master
The mouse arrived in unopened original packaging. I don’t know how it got to the American who was selling it, but he didn’t need it, and he sold it brand new at a good discount. 
View from above: 
Tum: 
I didn’t have to use the buttons for switching channels and connecting to the receiver - just like I turned it on for the first time, it still works without interruptions.
Front view (with micro-USB magnetic connector installed - purchased separately): 
This is how the hand rests on it: 
For the last couple of weeks, I have been alternating Master and Performance on my desk to determine which of the models is more convenient (despite the abundance of USB ports, I took advantage of the ability to connect several devices to one Unifying receiver; I also have a K270 keyboard with unifying support) . And it turned out to be damn difficult to determine the winner - Logitech knows how to make mice :) However, I still chose Master as the winner. And that's why:
Form. Both Master and Performance are large, weighty, and fit very comfortably in the hand, but their shape is still different. Although they are the same in height, the Performance seems taller and more convex, or something. If you work with it constantly, it is convenient. But the Master seemed more comfortable in my hand. Feelings, of course, are subjective, and it was really difficult to choose.
Controls. There is no point in comparing the left and right buttons :), the ratchet on the wheel can be turned off in both mice (although in the Performance it is turned off mechanically with a button, while in the Master the button controls the magnetic drive for connecting the ratchet). And I didn’t understand why make a magnetic drive for the ratchet, since it can break, unlike a mechanical one. And in the process of getting acquainted with the characteristics of the mouse on the Logitech website, I discovered that the scrolling mode is adaptive, precisely thanks to the magnetic drive. That is, when the ratchet is turned on, the wheel scrolls like a regular mouse, with small clicks, and if you turn the wheel harder, the ratchet is turned off and the wheel spins freely, allowing you to quickly scroll through long documents. In this case, the ratchet can be turned off completely - this is the mode in which I use the mouse.
And here's the extra. I definitely liked the buttons better on the Master.
Firstly, the Performance scrolls left/right on a wheel, which is incredibly inconvenient. Shifting the wheel left and right is too uninformative. On the Master, the scroll roller is driven by the thumb. And although I only used it a couple of times - the size of my monitors allows me not to resort to side scrolling - the second version is much more convenient.
Both mice have a button on the “wing” under the thumb; in both cases they press equally comfortably, but I don’t use this button. I assigned it a call to switch windows, but I was too used to being controlled by the keyboard.
Generally speaking, of all the extras. buttons, I most often use the forward/backward buttons. And here, in terms of convenience, Master is also far ahead. On the Performance, pressing these buttons requires you to move your thumb and bend it. And with the Master, the “back” button is pressed with the top of the thumb without moving it (to press the “forward” button, the finger needs to be slightly raised, but it’s still more convenient than in the case of the Performance).
Battery. As I wrote in the previous review, the Performance bothered me because the battery drained out too quickly (AA format). Still, the declared current is 180 mA. The battery lasted for 25 days, the battery runs out 3-5 days before it needs to be recharged. Therefore, to recharge, I bought a micro-USB cable with a magnetic connector, which somewhat alleviated my suffering :).
The Master has a built-in battery and has to be recharged every couple of weeks or less. I also bought a magnetic micro-USB cable for it, but in general the relatively infrequent need for charging is no longer annoying.
Among the goodies, the mouse also supports Bluetooth connectivity, as well as work on mirror surfaces, but these capabilities have not been useful to me yet.
So, a short summary:
+ convenient shape
+ convenient side buttons
+ support for unifying receiver
No cons found.
I can say that I really liked the mouse; I haven’t seen any competitors yet. I recommend it for purchase.
UPD: in the comments there was a note about the glitches of the wheel ratchet (in adaptive mode it quickly starts to glitch, as I expected). If the presence of a ratchet is important to you, it may be better to take the Performance MX, where it is turned on/off mechanically.
I can only say for myself that my ratchet is turned off completely, the wheel does not spin by itself, nothing prevents me from turning the wheel to the angle I need.
And here are a couple more photos to compare the sizes and shapes of Performance vs Master: 
The Logitech MX Master is a wireless optical laser mouse that is an upgraded version of the Perfomance MX. A special feature of the new mouse is its unusual design and laser sensor, made using Darkfield technology, allowing the manipulator to work even on glass and highly reflective surfaces. The maximum sensor resolution is 1600 dpi. The ability to quickly switch between the MacOS and Windows operating systems is also implemented, for which the mouse has two interfaces.
Unique ergonomic shape
The Logitech MX Master is ergonomically designed to precisely follow the curves of your palm and provides excellent hand support. The mouse has an original and extremely comfortable body. It was made based on a sample that was manually created by Logitech specialists. The Logitech MX Master features a variable scroll wheel for large documents and web pages. It allows you to automatically switch from step-by-step mode to ultra-fast scrolling mode. There is also a unique thumb wheel that is designed for horizontal scrolling.
Darkfield laser sensor
Logitech MX Master features Darkfield laser tracking technology, which ensures flawless operation even on glass and highly reflective surfaces. The mouse can be connected via Unifying radio, using a USB receiver, or using Bluetooth Smart wireless technology. A convenient quick switch button is located on the inner surface of the mouse. It is also possible to connect up to three devices via the Unifying radio channel thanks to Easy-Switch technology.
Built-in battery
Logitech MX Master is equipped with a built-in rechargeable battery with a capacity of 500 mAh, a full charge of which lasts up to 40 days of battery life, and 4 minutes of charging will allow you to use the mouse throughout the working day. An indicator light indicates the battery's charge status, and recharging is quick and easy. Simply connect the mouse to your computer using the micro USB charging cable. The Logitech MX Master continues to operate while charging.
Peculiarities:
- Ergonomic shape that follows the curves of the palm
- Wheel with adjustable scroll speed
- Unique thumb wheel
- Darkfield laser tracking technology
- Two connection methods
- Pair up to three devices
- Built-in, rechargeable battery
Instead of an introduction: I spent a long time and diligently writing a detailed article, but in the end a random hotkey in the browser and everything that was written disappeared into oblivion. “Thank you” Habr for not saving drafts automatically, like on normal sites, I’m sure many have encountered this at least once... It’s a shame, annoying, but okay, next time I’ll use a text editor.
So, the first “hero” is Logitech MX Anywhere 2.
What are the differences between the new and previous model?
1. Ability to use the mouse on three different devices;
+ can be used simultaneously on three different devices (at home, on the road, at work)
- switching between devices occurs using a button on the rodent’s belly
- parallel work is impossible without additional usb radio sensors (but even with them, it is completely inconvenient to use switching in parallel work between a computer and a laptop, for example, because you have to constantly press the button on your belly - and this is just EPIC FAIL. It would be much more convenient to place the button switches on top, above the miniature third button)
- you need to carry the radio sensor from the mouse with you and pull it out/insert it between all the devices you use (it’s difficult to pull it out even from a laptop, because the shape of the radio sensor does not have “hooks” for nails or fingers, it’s terribly inconvenient)
- the sensor is easy to lose, because it is even smaller than the previous one and now it cannot be hidden inside the mouse (and without a sensor the mouse will not work even via a connected wire)
2. Reduced USB signal reception/transmission sensor;
- at a steep 1000 DPI, the radio sensor still operates at the prehistoric 125Hz, which completely negates the advantages of a high-resolution sensor (despite the fact that the minimum comfortable frequency for working with graphics, modeling or for games can be considered 200Hz. Take any gaming mouse, there’s no frequencies below 200Hz. You can check using the Mouse Rate Checker program)
- if used on several devices, it is completely inconvenient to remove and insert (except for working with one device - insert and forget)
3. Built-in battery, instead of AA batteries;
+ the mouse has become lighter
+ can be recharged via wire
+ no need to bother with AA batteries
- work without recharging has been reduced from 4 to 2 months
- the battery tends to degrade, losing capacity (over time, your radio mouse will turn into a wired rodent)
- batteries are not removable (as was previously the case on some game models of the gaming series)
4. Recharge the mouse from a USB cable during operation;
+ recharging during operation
- the wire is short
- charging only, you can’t work through a wire, as for example on the gaming G700s (if you lose the radio sensor, you will get a beautiful brick, unless of course you find another radio sensor, but I haven’t seen them on sale)
5. New modified sensor;
+ two diodes instead of one
+ DPI from 400 to 1600
- due to the idiotic limitation of 125Hz, DPI above 400, alas, does not play a special role (you can check it using the Mouse Rate Checker program)
6. New design;
+ made well and with high quality
- there are no metal elements that gave this series of mice an expensive look
7. New software;
- no functionality for changing DPI
8. Price.
- the price for such a device, $70, is completely unreasonably high (at the time of writing, RUB 5,500 - 09/12/2015)
An honest evaluation: 2.5 points out of 5.
CONCLUSION: The rodent turned out to be clearly crude and unfinished, its price is too high, and its characteristics are significantly below average due to the idiotic limitation of 125Hz. I don’t recommend buying it, unless you are a victim of marketers and not a fan of spontaneous purchases of a new device just because it has a new color, a slightly different shape and a cool new inscription on the case...
The second "hero" - Logitech MX Master.
There is nothing special to add, all the same sores as the first copy.
- battery charge is even less - 40 days, instead of 2 months
- the price is even higher - $100
- the same poor 125Hz
- mouse only for right-handed people
- there are no side rocker buttons on the main scroll wheel
+ the scroll wheel switches automatically to high-speed mode during a sharp jerk
+ there is an additional side scroll roller for your thumb
- side roller slow
At prices of $70 (5,500 rubles) and $100 (6,800 rubles), I definitely DO NOT RECOMMEND these crude devices, which are practically no different from the MX Anywhere prototype.
P.S. I hope that representatives of the once legendary company Logitech, which has recently lost its ground, will read this article and think at least a little about the fact that instead of spending millions on redesign and marketing, it would be better to return to the roots and continue the tradition of releasing cutting-edge devices. which in fact once had no equal. Now it’s just technologies spread across model ranges and the absence of truly high-quality products.
P.P.S. Previously, modified drivers circulated on the Internet that made it possible to bypass the 125Hz limitation and use rodents at 200Hz, but now I have not seen such drivers for new OSes. If anyone knows how to make a rodent work at frequencies above 125Hz, I would be very grateful for the information and would even write a detailed article on this topic with your help, not to mention the rays of goodness and great gratitude on my part.
