When comparing Gamdias Erebos GMS7500 vs Logitech G602, the Slant community recommends Logitech G602 for most people. In the question“What is the best gaming mouse?” Logitech G602 is ranked 15th while Gamdias Erebos GMS7500 is ranked 84th. The most important reason people chose Logitech G602 is:
Great for palm grip along with a the fantastic logitech software for key mapping and profiles.
Specs
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Pros
Pro Customizable weight
There are four 5g weights included with the device that users can place inside to customize the exact weight they want the mouse to be.
Pro Lighting control
There is lighting control for this device though its included software.
Pro Built in memory
There is built in memory on this device that will allow users to store up to 6 different custom profiles. this way no software is needed when the device is used in a different PC.
Pro Interchangeable side panels
There are interchangeable side panels that change the ergonomics of the device to suit the user.
Pro Ambidextrous
The Gamdias Erebos GMS7500 is an ambidextrous mouse.

Pro Comfortable for palm grip with easy to hit buttons
Great for palm grip along with a the fantastic logitech software for key mapping and profiles.

Pro Great battery life
Good for users that want a wireless mouse without any loss of functionality or need to change the batteries every week

Pro Good optical sensor
Only up to 2500 DPI but it's a great sensor for those that don't need very high DPI.
Pro Can run on single battery for lighter weight
Users can opt to run the device on a single battery to cut down on the weight but this will have an impact on battery life.
Cons
Con Sharp side buttons can irritate fingers
The sharp side buttons can irritate fingers and cause distractions while playing.


Con Somewhat heavy
Being that this is a wireless mouse there is the battery weight to contend with. Batteries in the weight of the device is 152 grams, which isn't all that bad considering but still not for users that like a lighter mouse.
The mouse can also be used with a single battery, which is useful for not only reducing weight but also for balancing the mouse. With two batteries the mouse can be a bit slipper on the right side when picking it up as the pinkie and ring fingers don't have as much to grip - but balancing the weight over towards the thumb allows the mice to be more easily picked up as the side buttons allow for a decent place to grip.
Con No wired option
The Logitech G602 does not offer a wired USB option, only wireless.

Con Macro Key Defect
Side buttons are known to register multiple keystrokes occasionally when pressed only once. With bindings such as Ctrl+F4, this naturally has destructive results.

Con Middle mouse button wore out after a year of heavy use
And with no way to open it it's near impossible to fix.
