When comparing Corsair Vengeance M65 vs Zowie EC1-A, the Slant community recommends Zowie EC1-A for most people. In the question“What is the best gaming mouse?” Zowie EC1-A is ranked 20th while Corsair Vengeance M65 is ranked 48th. The most important reason people chose Zowie EC1-A is:
The Avago 3310 sensor used by this mouse is exceptional. It delivers a true portrayal of mouse movement with no jitter, acceleration or prediction. The available DPI choices of 400/800/1600/3200 are all native and should ensure an equally good performance, regardless of which one is chosen.
Specs
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Pros
Pro Sturdy mouse wheel
Pro Aluminium base with configurable weights
Pro Interesting futuristic design
The Corsair Vengeance M65 has a very interesting futuristic look to its design. With its metal core to the 3 plastic pieces on the outside of the frame and the over-sized scroll wheel.
Pro Sensor and DPI options ensure fluid and optimal gaming performance
The Avago 3310 sensor used by this mouse is exceptional. It delivers a true portrayal of mouse movement with no jitter, acceleration or prediction. The available DPI choices of 400/800/1600/3200 are all native and should ensure an equally good performance, regardless of which one is chosen.

Pro Ergonomic, accommodating shape, especially for those with big hands
Though it may look tame, the mouse’s shape is quite ergonomic. Its subtle curves help your fingers position themselves while also allowing various grip types. For the same reason, the bulge of the mouse is located strictly in the middle, making it accommodating for the most amount of people, and even more for gamers that have big hands. Nevertheless, it may be more suited for palm grips because of the subtle curve at the right side which provides support for the ring and pinky fingers.
Pro Flawless movement, essential for gaming
The EC1-A delivers accurate mouse cursor movement that is essential to any gaming mouse. Virtually flawless, it has none of the precision-altering flaws that are apparent in other mice.
Pro Button switches click easily
Although the buttons have Huano switches, which are more stiff, the shell of the mouse somehow negates this and makes them click easily, just like typical Omron switches.
Pro Smooth mousepad movement
The mouse comes with two mouse feet that are larger than normal and ensure smooth movement over the mousepad.
Pro Includes a set of thumb buttons
The EC1-A includes a set of thumb buttons which are standard for most mice.
Pro Built to last
The switches don’t randomly break down, no component excessively rattles and the scroll wheel doesn’t degrade easily. Although the mouse has a rubber cable which is quite vulnerable to bending and damage, the mouse as a whole is well built and can be expected to last.
Pro Coating ensures a good grip
The mouse has a smooth plastic coating that doesn’t feel slippery. You can easily hold the mouse with a comfortable grip even without the rubber sides.
Pro Some customization options
The EC1-A has only a few customization options, all of which are sensor related. It is possible to change the lift off distance, polling rate and the DPI settings (400/800/1600/3200).
Cons

Con Bad Palm Grip
With a design that is not ergonomic at the back and side buttons that are so far out it is not a recommended mouse for a mouse user who prefers palm grip.
Con Has input lag and smoothing
Being that this device is using a laser sensor there is expected lag and smoothing.
Con Customization options are limited due to the lack of companion software
There is no companion software to this mouse, which means you cannot do thorough customizations, such as button remapping or custom lighting.
Con DPI colors annoying and can't be customized
The scroll wheel has an LED that changes color depending on your DPI setting, but the corresponding color cannot be customized.
Con Side buttons don't register easily
The side buttons require you to press deeply before it registers an action.
Con DPI switch can't be accessed during use
The DPI switch is a button that can’t be accessed while in use because it's located under the mouse.
Con The customization process is inconvenient
All Zowie mice are built to be straightforward and simple to use. However, its settings cannot be changed easily during normal use: you have to unplug the mouse and use a combination of different button presses while plugging the mouse in, which is unintuitive and a hassle to learn.
Con Not manufactured anymore
The Zowie EC-1 is no longer manufactured by Zowie but it still can be found on eBay and Amazon from third party sellers.
