When comparing Steelseries Rival vs Logitech M570, the Slant community recommends Logitech M570 for most people. In the question“What is the best mouse for programmers?” Logitech M570 is ranked 11th while Steelseries Rival is ranked 24th. The most important reason people chose Logitech M570 is:
Using a stationary mouse will keep wrist and arm movement down. The trackball being operated by the thumb makes for great comfort (do not recommend finger based track balls). A trackball doesn't require a large flat surface, though next to the keyboard still tends to be most comfortable.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Great tracking
The Steelseries Rival gaming mouse has a built in Pixart PAW3310 optical sensor that offers great tracking control.
Pro Works great on Linux, using the libratbagd software
Pro Satisfying clicks
Steelseries boast of new in house built switches used inside of the Rival. Use reports have claimed that the clicks as "satisfying".
Pro Great accompanying software suite
Steelseries uses a software suite called Engine 3 that is low resource and used to customize their gaming mouse options.
Pro Great value for money
At $59 the Rival gaming mouse has a great balance between build quality and value for money.
Pro Great grip and comfortable
Pro Customizable colors for scroll wheel and palm lights
The Steelseries Rival gaming mouse offers 16.8 million colors with two zone illumination.
Pro Absolutely the best for a gaming mouse claw grip
When You have relatively large hands.
Pro DPI can be doubled with software
The 5000 DPI of the Steelseries Rival can be doubled to 10000 with Steelseries firmware.
Pro Trackball
Using a stationary mouse will keep wrist and arm movement down. The trackball being operated by the thumb makes for great comfort (do not recommend finger based track balls).
A trackball doesn't require a large flat surface, though next to the keyboard still tends to be most comfortable.
Pro Wireless
With 18 months of wireless power, it can be used in a variety of manners not handicapped by a wire.
Cons

Con Rubber grips get worn out very quickly
Con Rubber grips get slippery with sweaty hands
When using the mouse for long duration's the sweat from the users hands can make the rubber side grips slippery.
Con Cannot turn of lighting without Steelseries proprietary software
The lighting on the device can not be adjusted without the Steelseries software.
Con Labled DPI is incorrect
Steelseries labels the DPI as 6500 for the Rival when in fact it is 5000.
Con Low build quality
The shell is very cheap, thin plastic and the button sensors are either far too easy to trigger (left/right click) or ridiculously hard (back/forward, middle button/wheel).
Con Really awkward with the left hand.
Doesn't really go both ways
