(You can read more about the double-click failure below.) Razer has redesigned most of its gaming mice to use optical switches rather than mechanical ones-so far, these designs don’t seem to develop the same switch failure, but they’re more expensive and harder on battery life in wireless models.
Buttons: In addition to left- and right-click buttons, a mouse should have at least two extra buttons near the thumb, and maybe one or two on top (including the clickable scroll wheel).
We aimed to find mice that felt comfortable for the largest range of hand sizes and the most popular grips (fingertip and palm, followed by claw), but no mouse is universally comfortable.
Comfort is reliant on your hand size and grip style, so what works for one person doesn’t always work for another.