($78/£67) is a 121 gram monster (that’s with its weights removed, and not counting the cable), slightly longer than the Deathadder, and built to look vaguely like some kind of futuristic weapon. It also happens to have the best mouse sensor on the market. Where most gaming mice use custom-tuned variations of the same pool of Avago sensors, Logitech is still doing a ton of their own engineering work, and have fitted the mouse with 12,000 CPI sensor that can be configured to a lift-off distance of about 1mm, making it a great choice for either high or low sensitivity players.
12,000 CPI is absolutely overkill, and it would be all but impossible to play a game at that setting without massively cranking down sensitivity in-game. But mouse enthusiasts who have put the G502 to the test back up Logitech’s claim that the sensor has no smoothing at any sensitivity level, and have found that it’s acceleration- and jitter-free even at max CPI. That’s impressive: its means the mouse has a high enough maximum control rate, even at 12,000 CPI, to track fast swipes without losing accuracy.
While the G502 looks far more angular than the G500s it replaces, it’s actually similar in shape and ergonomics. It’s primarily built for a palm grip thanks to its heavy left-side thumb groove, but you can still claw grip the mouse with some compromises. The G502 is packed with extra buttons—two to the left of the left mouse click, two above the thumb groove, and a “sniper” button at the end of the thumb groove. Its scroll wheel also has a button to switch from free to notched scrolling, has the standard middle click, and also can rock left-to-right for two more clicks.