When comparing Steelseries Rival vs Evoluent VerticalMouse 4, the Slant community recommends Evoluent VerticalMouse 4 for most people. In the question“What is the best mouse for programmers?” Evoluent VerticalMouse 4 is ranked 8th while Steelseries Rival is ranked 24th. The most important reason people chose Evoluent VerticalMouse 4 is:
The included Mouse Manager software allows you to assign different functions to the buttons such as hotkeys, Windows commands, or media control. You can reduce the amount of clicking you have to do by assigning a double-click button, or set the mouse to double-click automatically after a short pause. Static strain can also be reduced by pressing and holding a button momentarily to simulate continuous pressing.
Specs
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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 Included software further eases work
The included Mouse Manager software allows you to assign different functions to the buttons such as hotkeys, Windows commands, or media control. You can reduce the amount of clicking you have to do by assigning a double-click button, or set the mouse to double-click automatically after a short pause. Static strain can also be reduced by pressing and holding a button momentarily to simulate continuous pressing.
Pro Made from quality plastic and rubber
The mouse is made of quality hard plastic. The back portion of the mouse is made of a soft rubberized material that helps add grip. The scroll wheel feels tight and responsive.
Pro Comes in left and right handed forms
This mouse can be bought in six different versions: a left-handed one, two smaller ones (wired and wireless), and three standard right-handed versions.
Pro Takes away stress from your arms
Even if you don't have wrist pain, this mouse will be better for your hand health.
Pro Super comfortable and easy to use
Rather than twisting your forearm to abide the requirements of a traditional mouse, the VerticalMouse lets your arm rest in a natural pose while you navigate. Add to that browser buttons and customizable software on top of a navigating experience that is not only better for you but one of the smoothest in the consumer category and you have a easy to use everyday mouse.
Pro Lightweight
So you don't have to exert as much energy to move the mouse.
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 Takes a while to adapt
For a user that spends 8+ hours with a mouse it may take days, for a casual user it may take weeks.
Con Buttons feel cheap
The buttons feel cheap and mushy to press compared to other mice in its price range.
Con Subpar tracking
A bit inaccurate and may stutter on certain surfaces (mousepad recommended).
Con Driver interferes with other mice
The VerticalMouse mouse driver interferes with the Magic Mouse and Kensington drivers and even disables the Magic Mouse upon startup.
