Logitech MX Master 3 mouse review: Logitech sticks with a winning formula

I have two desktop Mac setups, one at home and one at the Macworld office (ah, going to the office, those were the days). Both those setups have Logitech mice. My work setup has the Performance Mouse MX that I’ve been using for over ten(!) years. At home, I have the original MX Master, which I’ve been using for four years. Suffice to say, I love these mice. They have a similar design that fits my hand beautifully, they feel great and are highly functional.

Logitech recently released the MX Master 3, the latest entry in its MX series that also works with the iPad. It has many of the same features as the two mice I’ve been using, but it has one design change that’s an improvement, making it a slightly better mouse.

Design and buttons

The MX Master 3 design doesn’t deviate much from previous MX mice, including the MX Master 2S, its predecessor, which I have not used. Made for the right hand (sorry, lefties), the Master 3 has a cradle for your thumb, and the body of the mouse rests under your palm. It’s a comfortable design for me, and I never experience any fatigue or discomfort. (For reference, I wear a large-size men’s glove.)

In addition to the standard left and right mouse buttons, there are three buttons for your thumb: one at the base of the cradle, and back/forward (or undo/redo) buttons at the top. The predecessors to the MX Master 3 had the back/forward button behind the thumbwheel and stacked on top of each other, which I found awkward, so I didn’t use those buttons. But they’re now placed below the thumbwheel and in a more intuitive front and back alignment, which is an improvement.


lenty of button on the MX Master 3, and they’re all customizable.

The button at the base of the thumb cradle is a gesture button and it works in conjunction with a mouse gesture. For example, if you hold the button down and move the mouse up, it launches Mission Control.

The scrollwheel between the right and left mouse buttons (which itself is a button, too) can automatically switch from ratcheted scrolling to free spinning. It switches if you are, for example, quickly scrolling up or down a long webpage. While the switching works well, I prefer free spinning all the time. Fortunately, you can use the mode button below the scrollwheel to set the mode.

You can customize and also assign application-specific functions to all of the mouse buttons and the scroll wheels with Logitech’s software utility, Logi Options. It saves all of your settings to the cloud (you have to create an account with Logitech), so if you use the mouse with another device (more on that in a bit), your settings come with you. I tried the app with a developer beta of macOS Big Sur, and I wasn’t able to get the app to recognize the mouse. Logitech will probably have a Big Sur update ready when the OS is updated this fall.


Use the Logi Options app to customize all the buttons and scrollwheels.

Logitech claims that the MX Master 3’s battery can last up to 70 days. I’ve been using the mouse for nearly a month, and I haven’t had to recharge it. There’s a battery life indicator in Logitech’s software, but it would be nice if there was a quick view available though the Logitech menu bar icon.