How can you make something better that already accomplishes your goals? Productivity-driven individuals who wish to read, process, and create as much as possible as quickly have traditionally favored Logitech's MX Master mice. (Although that might sound like the majority of people nowadays, not everyone purchases a mouse over it.) The $99.99 MX Master 3, Logitech's newest flagship MX mouse, solidifies the series' position as the industry standard for potent office accessories. It is much more user-friendly and comfy with minor adjustments. Additionally, extensive customization is now more accessible thanks to a new software feature, allowing even non-tweakers to find their rhythm and optimize their process. This mouse is worth the investment, regardless of whether you're an expert at multitasking or just have a heavy workload.
Logitech MX Master 3 ergonomic design and features
The MX Master 3 and the other members of the MX Master series are similar in many respects. It is an eight-button mouse with a big thumb wing that is right-handed, just like the MX Master 2S. It features a scroll wheel that can be clicked, two click panels on top, and a button beneath the wheel that allows you to manually switch between precise and free-wheeling scroll rates.

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It features a second scroll wheel, two macro buttons, and a unique "gesture" button on the side of the wing. Holding down the gesture button while moving the mouse up, down, left, or right gives you four additional inputs, much like a function key on a keyboard.
Pros and Cons
Pros:
- Super-comfy sculpting.
- Electromagnetic scroll wheel allows for precise or freewheeling motion.
- Downloadable profiles for popular apps.
- Works across up to three devices, and even between OSs.
- Superb rated battery life.
Cons:
- Connectivity suffers a bit when connected to multiple devices via wireless adapter.
Logitech MX Master 3 weight, dimensions, and scrolling
However, the buttons and scroll wheels showcase the MX Master 3's most significant advancements. The two side buttons—which most office workers consider to be the back and forward buttons—are now bigger and separated by a space, which makes it simpler to use your thumb to differentiate between them. Similarly, the gesture button now features a small, raised line for easy identification, even for novice users.
The MX Master 3 boasts a redesigned electromagnetic scroll wheel, which is the most notable upgrade. As you scroll line by line, a sense of gradual ticking is created via magnets in the center of the wheel that add resistance at specific points rather than mechanically.
Compared to other scroll wheels I've used, the magnetic resistance feels unique. Every time you scroll up or down a line, you get a distinct bouncy feeling. Although I'm not sure if the electromagnetic wheel increases the precision of the scroll wheel as Logitech claims, the additional feedback is nice and lets you know when you're getting close to your next increment, which makes it simpler to stop over scrolling.
Additionally, the magnetized wheel makes dynamic scrolling possible, where the scroll wheel dynamically adjusts its resistance based on how quickly and forcefully you spin it. When you scroll slowly, each line will have a bouncing tick; when you spin the wheel fully, the resistance goes to zero, allowing you to quickly scan the page. Of course, you can manually switch between accurate and resistance-free scrolling, but having both at your disposal feels more practical and intuitive than using either one separately.

DPI settings and button customization
With the exception of the additional buttons, most of the features on the MX Master 3 are identical or comparable to those on the MX Master 2S. Nevertheless, they are really useful. First of all, the shape is quite cozy: It is marginally higher and marginally smaller than its predecessor, measuring 2 by 3.3 by 4.9 inches. The "hump" where your pointer finger base rests appears almost absurdly elevated. However, the mouse fits perfectly because of its shape. It feels nearly as natural to handle and guide as a mouse does.
Logitech's venerable Darkfield sensor, which can detect movement on any surface, even glass, and tracks at up to 4,000 dots per inch (dpi), is still used under the hood of the MX Master 3. I use the word "reportedly" to qualify this statement, as my testing was limited to a few different surfaces such as wood, plastic, a cotton tablecloth, my office carpet, and the top of my Apple MacBook Pro. (You know, the typical locations.) I tested it on all surfaces, and it worked.
It is important to note that there is a vast array of mice—mostly gaming mice—that track at greater speeds, including models that are significantly less expensive than this one, even though the sensor functions well and 4,000 dpi is a high enough ceiling for the majority of users. As two- and three-monitor setups continue to become more and more popular for professionals at work and at home, I would have liked to see at least a slight resolution increase from the MX Master 2S, even though most of us—including gamers—do not really need a 16,000 dpi setting, as you would get with Logitech's own G502 Lightspeed wireless gaming mouse.

Charging and Battery life
Fortunately, the MX Master 3 still has the exceptional battery life of the MX Master 2S. According to reports, it can run for up to 70 days between charges. Even better, the MX Master 3 has a USB Type-C port for rapid charging instead of a conventional charging port. Logitech claims that the mouse can be fully charged in two hours and that, in an emergency, a single minute of charging will provide several hours of use. Nevertheless, the mouse's front conveniently houses the port. As you power up, you can just plug it into your computer and use it as a wired mouse.
Wireless connectivity and USB Ports
In relation to it, let us discuss connectivity. The MX Master 3 connects wirelessly via Bluetooth or a 2.4 GHz Unifying adapter that comes with it, just like its predecessor. With the mouse's capability for three separate wireless channels, you may connect up to three devices simultaneously and quickly switch between them using a little switch on the underside. (The dongle may be used to connect one device, while Bluetooth may be used to connect others.) Additionally, you can use a single unifying adapter to connect several Logitech products that enable unifying connections. Therefore, in this instance, you may use both the MX mouse and the MX keyboard on a single adapter while only using one USB port.
Although the mouse may become overloaded, most of these connectivity choices function well. When utilizing wireless adapters to connect the mouse to several devices, I noticed some lag. Although it isn't a need, you should be mindful of it, particularly if you intend to use Logitech's cross-device control tool, Flow. (More about Flow soon.)
Configurations and mouse Software setup
The configuration software for the MX series, Logitech Options, is compatible with the MX Master 3. The experience is quick and fluid, making it simple to change your inputs. Although the Master 3 enables app-specific adjustments, just like the previous MX Master mouse, Logitech also provides pre-made custom setups for the most popular apps, including web browsers like Safari and Chrome, Microsoft Office, and the Adobe Creative Suite. Based on commonly used configurations from previous MX Master mouse users, these presets allow novice users to create their own unique experience and may also show novice users how seasoned tweakers optimize their setups. Whether they work depends on personal preference, but you can modify or create your own.
Compatibility with iOS, Android, Linux, macOS, and Windows
You can also use Flow, the previously stated cross-platform control tool, through Options. With Flow, you may connect to numerous devices at once and move your mouse between them as though they were additional monitors. Basic device-to-device operations, such as copying and pasting text and transferring data between Flow-connected devices, are also supported. It functions on all of the platforms that the MX Master 3 is compatible with, including iOS, Android, Linux, macOS, and Windows.
The ability to switch between devices with a single set of inputs is a huge help to consumers who use many gadgets on a regular basis. While not a brand-new technology, flow is nevertheless a unique and very helpful function for anyone who divides their work between two or more PCs or tablets.
Logitech MX Master 3S Wireless Mouse Full Review. Which is best?
Conclusion
No matter what you're doing, the MX Master 3's numerous powerful functions come in a package that feels comfortable and natural. The MX Master 3 equips you with all the necessary tools to swiftly complete daily tasks such as word processing, spreadsheets, and document reading. More customized mice are available, many specifically designed for gaming. Logitech's most recent update to its iconic productivity mouse, the MX Master 3, makes you feel like a power user with no effort.
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