The updated version of this Steelseries mainstay, the Sensei 310, subtly reinvented a classic mouse. It needed it. Almost everything is new except the Sensei's ambidextrous shape, and that's exactly how it should be. Thanks to a new plastic, the Sensei is grippier and can shrug off a sweaty palm. Steelseries is also using its own custom version of one of the best gaming sensors around, ensuring the Sensei 310 won't suffer from any tracking issues.

The Sensei 310 fits in your hand just like the old Sensei, and is a great shape for either left- or right-handed gamers looking for a midsized ambidextrous mouse. That means it has a pair of identical thumb buttons on the left and the right, a common issue for ambidextrous mice—it can be far too easy to accidentally click the wrong side's buttons as you grip with your pinky. In my hours of testing the Sensei 310, that hasn't happened once.

The size and shape of the thumb buttons have been tweaked, making it easy to rock your thumb upwards to press them but keeping them out of the way of accidental pinky clicks. Anyone looking for a small, light, or ambidextrous mouse: this should be your first stop.


The Razer Viper Ultimate Wireless uses Razer's new Focus+ optical sensor that jacks the DPI all the way up to 20,000. That's the same as the Deathadder V2; pretty much higher than every other mouse here.

The Viper is an incredibly accurate mouse with a 650 IPS rating (how fast you can move the mouse before it loses tracking accuracy), which is a very high bar for tracking fast movements, and again higher than anything else on this list other than the Deathadder V2. The battery runs about 70 hours before needing to recharge on its cute little charging dock, making it perfect for long gaming sessions.

Despite having a good weight and feel overall, the buttons themselves feel a bit flimsy when clicked, which keeps it from being higher on the list; it's unfortunate considering the high price and all the other great tech built into the things that rival some of our top picks. That being said, the Viper Ultimate wireless is a great feeling ambidextrous gaming mouse that's insanely accurate with a good battery life.