These MX mice both feature wireless connectivity with Bluetooth Smart and Logitech's own Unifying technology. Each one can store up to three device pairings in its onboard memory, and switching between them is as easy as pressing a button on the bottom. They're both powered by non-removable LiPo batteries that should be good for up to two months on a charge.
The MX Master has an innovative dual-mode scroll wheel that can automatically switch between Logitech's trademark free-spinning and notched scrolling modes based on how hard one manipulates the wheel, and it's also got a second wheel under the thumb for horizontal scrolling. The thumb grip itself is a big button that can be used to trigger gesture-based actions.
Most of these functions should be re-mappable by way of Logitech's Options software if the defaults aren't to taste. As Logitech's halo mouse, it's no surprise that the Master rings in at a cool $100.
The MX Anywhere 2 is considerably smaller than the Master, and it's clearly targeted more at the laptop bag than the desktop. It gives up the intent-sensing scroll wheel and thumb wheel of its bigger brother, but one can still manually switch between free-spinning and notchy modes, and the dual back and forward buttons under the thumb are handy. It's also $20 cheaper than the Master at $80.
Stay tuned for our review of Logitech's latest for our verdict.