Competitive gamer reviews: 3310 sensor mice, Steelseries Rival & Mionix Avior 7000

Video is sped up for your time convenience.

Conclusion/summary:

Rival: doesn't say what the default dpi & hz are either on the box or in the online manual. Feels very accurate on desktop at 800dpi, when the fk felt inaccurate at 450dpi. Side grips and rubber coating are very good. The mouse isn't too low at the front like a lot of other SS mice, so there's plenty of room for the ring finger on the right. Clicks are more muddy. Shows about 760dpi per 10cm instead of 800. Cramps hand.

Avior 7000: mwheel is further forward, left side button is better placed and easier to click without releasing grip. Right side button gets accidentally clicked by ring finger. DPI is exactly 400 per 10cm. Back is too narrow and right side ridge for ring finger is claw grip oriented. Doesn't feel good in palm grip.

Coating on both is good. Both mice are basically claw and fingertip grip only mice unless you have small hands. The Avior buttons (omron) feel better and are higher quality. The scroll wheels are good and very similar.

Sensor is decent. I'd rank it 2nd after the MLT04 (Intellimouse 3.0). You can definitely feel the smoothing required to reach such high DPI. Sometimes it felt ok, other times it felt significantly inferior to the MLT04.

Lift off distance on both is nice and low.

If you can't or don't want to use an older MLT04 sensor mouse, then one of these two is probably your best bet until the Roccat Kone Pure Military (also 3310 sensor, but different shape & lower DPI - 5000) is released in the 3rd quarter of 2014.

UPDATE: there's a new sensor released (3366 sensor) that has slightly less smoothing/inaccuracy/delay. I'll be reviewing it soon.
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Important mouse info: https://www.youtube.com/watch?v=lc7JVjcPzL0

High DPI does NOT equal more accurate mouse. It's the opposite. High DPI means higher sensitivity/speed of cursor. And in order to get the cursor to move that fast without major jitter they have to implement smoothing algorithms which degrade the sensor's accuracy/precision.

High DPI is a marketing gimmick that has been destroying the quality of sensors for years!