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Logitech MX Master vs G900 (2021): Which Wireless Mouse Should You Get?

The Logitech MX Master and Logitech G900 Chaos Spectrum are two of the brand’s most highly-rated wireless mice. Both are professional-grade, high-precision peripherals, but as their designs should suggest, they have respective strengths and distinctive features. If you’re deciding between the MX Master and G900, it’s worth understanding exactly how they differ and what each wireless mouse offers. Here’s our detailed breakdown of these top Logitech wireless mice below.

Logitech MX Master vs G900 Wireless Mouse Comparison Chart

ModelLogitech MX MasterLogitech G900 Chaos Spectrum
 Logitech MX Master Wireless Mouse – High-precision Sensor, Speed-Adaptive Scroll Wheel,...Logitech G900 Chaos Spectrum Professional Grade Wired/Wireless Gaming Mouse, Ambidextrous Mouse
PriceCheck PriceCheck Price
ConnectivityUSB, BluetoothUSB
Hand OrientationRightBoth
SensorDarkfield LaserHigh-definition optical
Sensitivity400 – 1,600 dpi200 – 12,000 dpi
Hyperfast ScrollingYesNo
Thumb WheelYesNo
Easy SwitchingYesNo
DPI SwitchingNoYes
RGB LightingNoYes
Battery Life40 days32 hours
Dimensions5 x 3.4 x 1.9 inches5.1 x 2.6 x 1.6 inches
Weight4.96 oz (140 g)3.77 oz (106 g)
PlatformWindows, Mac OSWindows, Mac OS


The Logitech G900 has an ambidextrous design and has more buttons than the Logitech MX Master.

As their builds might suggest, the Logitech MX Master (left) and G900 (right) are very different mice.

The contrasting designs of the Logitech MX Master and G900 Chaos Spectrum illustrate just how different these two wireless mice are. The sleek, ergonomic build of the MX Master is quite minimalist compared to the slim, contoured form of the G900. This also shows the intended users of both devices: the MX Master is meant for office and multimedia use while the G900 Chaos Spectrum should appeal more to gamers.

In addition to its wider and smoother shape, the Logitech MX Master is also much heavier. This makes it feel more solid in your hand as you glide it along the desk. A generous thumb rest area and gently sloping top allows your hand to relax and sit comfortably. In comparison, the Logitech G900 is a lightweight peripheral that’s easier to move around rapidly and in quick bursts. It’s also ambidextrous, unlike the intentionally right-handed MX Master, so left-handed gamers should find this comparison pretty one-sided.

The Logitech G900 Chaos Spectrum also features 11 programmable buttons in total, along with a customizable physical button layout. Furthermore, it has RGB lighting that can be adjusted to your preference, perhaps to match your keyboard’s. In contrast, the MX Master is simpler, with only 5 customizable buttons and no lighting. What it does have that the G900 doesn’t is a thumb wheel that can be used for horizontal scrolling.


The Logitech MX Master has easy-switching and hyper-fast scrolling while the Logitech G900 has DPI switching.

The Logitech MX Master (top) and G900 Chaos Spectrum (bottom) has special buttons for unique features.

The easiest to spot differences in features between the Logitech MX Master and G900 Chaos Spectrum are the easy-switching, hyper-fast scrolling and DPI switching. First, the MX Master can be paired with up to three different computers and devices. It has a button underneath that lets you switch between these devices instantly, letting you work on multiple PCs with the same mouse. Further, the button beside the mouse wheel enables and disables hyper-fast scrolling, so you can fly through long documents quickly.

Meanwhile, the Logitech G900 Chaos Spectrum can switch between DPI sensitivity settings quickly. You can set up to 5 presets and cycle through them with the – and + buttons in the middle of the mouse. This is useful if you prefer different DPI settings per weapon in competitive FPS games or want lower DPI with certain modes or apps. Even if you don’t find it useful, you can still assign other functions to those buttons using Logitech’s software.

The Logitech Gaming Software is free to download and lets you customize your G900 Chaos Spectrum in numerous ways. You can reassign what each button does, so you can have handy shortcuts for media controls, game macros, and more. This also lets you customize its RGB lighting to any preset patterns or sync it with game events.

For the MX Master, you’ll want to download the Logitech Options software to customize its buttons. It provides many of the same functions as the other app minus the RGB lighting options.


The Logitech MX Master has a much longer battery life than the Logitech G900.

The Logitech MX Master (left) and G900 (right) also have different sensors.

Highlighting the impressive performance of the Logitech MX Master is its high-precision Darkfield Laser tracking that can work on almost any surface, including glass. It’s great for busy and mobile professionals who might find themselves without a mouse pad when working at different locations. Plus, it works with either the included Logitech Unifying receiver or via Bluetooth, so you can use it with more types of devices or save USB ports for other peripherals.

Note that the Logitech MX Master only has a max of 1,600 DPI, which is adequate for daily use. If you want higher sensitivity, the Logitech G900 can reach up to 12,000 DPI, and as mentioned, you can switch between presets at the press of a button. It uses the PMW3366 optical gaming sensor which delivers exceptional accuracy with zero smoothing or acceleration. It’s fantastic for competitive gaming that requires consistent control and responsiveness.

Overall, you can definitely appreciate the ergonomic design of the Logitech MX Master when you’re working. Though it’s a bit heavier, the large size and smooth contours support your hand quite well, while the matte finish feels nice to the touch. Meanwhile, the Logitech G900 Chaos Spectrum provides the flexibility of an ambidextrous shape, and its slim form and lightweight build makes it easy to move whether you have a claw or palm grip. Plus, all the extra buttons are easily accessible for quick reactions.

Where the Logitech MX Master full outstrips the G900 is in battery life. The MX Master can last up to an amazing 40 days on a single charge, meaning you won’t have to worry about battery charge for a long time. In comparison, you’ll want to recharge the G900 every other day, since its battery only lasts up to 32 hours of use.


The Logitech MX Master and G900 are clearly intended for different purposes.

Because of how excellent these wireless mice are, it’s difficult to simply declare one better than the other. It’s much easier to recommend our pick depending on how you’ll be using the mouse the majority of the time. As such, if you’ll be gaming on your desktop or laptop for many hours a day, you’ll be better served by the Logitech G900 Chaos Spectrum. Its numerous buttons, high-precision tracking and lightweight build are highly advantageous for accurate in-game controls, while still being fine for multimedia use.

However, if you’re looking for a wireless mouse primarily for work or multimedia use, the Logitech MX Master is the better, more ergonomic option, even if you play videogames occasionally. It design is very comfortable to hold, letting you relax your hand while your mind stays busy on the task at hand. Plus, its extensive battery life means plenty of usage without the hassle of constant recharging.


📌 Is the Logitech MX Master good for gaming?

The Logitech MX Master performs well for most videogames, though its weight and bulk might not be optimal for certain genres that require quick reactions, such as FPS and battle arena type games.

📌 What is the difference between the MX Master and MX Master 2S?

The Logitech MX Master 2S has a longer battery life and higher max sensitivity than the MX Master, as well as the new Logitech Flow feature.

📌 Is the G900 good for gaming?

Yes, the Logitech G900 Chaos Spectrum has nearly everything you need in a wireless gaming mouse: excellent tracking accuracy, plenty of buttons, and customizability.

📌 What is the difference between the Logitech G900 and G903?

The Logitech G903 is a slight refresh of the G900, essentially adding optional extra weights and wireless charging support via the Logitech POWERPLAY charging mat.

Last update on 2021-07-19 / Affiliate links / Images from Amazon Product Advertising API

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Derick Bondoc

Managing Editor at Compare Before Buying. Writer and researcher passionate about gadgets, gaming and snacks.