When comparing Logitech MX518 vs Logitech G9x, the Slant community recommends Logitech MX518 for most people. In the question“What is the best gaming mouse?” Logitech MX518 is ranked 11th while Logitech G9x is ranked 18th. The most important reason people chose Logitech MX518 is:
There is a built in application switching button that behaves the same as alt+tab.
Specs
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Pros
Pro Application switching button
There is a built in application switching button that behaves the same as alt+tab.
Pro On the fly sensitivity switching
There are two buttons above and below the scroll wheel that allow for on the fly sensitivity switching.
Pro Highly customizable
It can be outfitted with two different grips (a precision one and a wide grip one), has an adjustable weight, where the user can add up to 28g of weight to the mouse, and features on-the-fly adjustable DPI that can switch automatically depending on the program in use. There are also two scrolling settings - notched and smooth. Even the LEDs on the mouse are color customizable, so you can set a different color for different profiles.
Pro Customizable, profile-based LED colors
Even the LEDs on the mouse are color customizable, so you can set a different color for different profiles.
Pro Dual-mode scroll wheel
There are also two scrolling settings - notched and smooth.
Pro Onboard memory for saving profiles
Logitech G9x allows saving up to 5 profiles on it's onboard memory.
Pro Comfortable for claw or fingertip grip
The thumb cradles for both grips are comfortable and additional buttons are in an easy access position that do not get in the way.
Pro Can switch CPI settings based on program used as well aws switch on the fly
The mouse features on-the-fly adjustable CPI that can switch on the fly as well as automatically depending on the program in use.
Pro Accurate and responsive tracking
Cons
Con Not produced anymore
Logitech MX518 is an old model, that has since been replaced by G400 in 2011, which in turn was replaced by G400s in 2013.
Con Always wired
Not a pleasure to use compared to wireless.
Con DPI manual switching button placement is poor
The placement of the manual DPI "on the fly" button could cause users to accidently swithc when actually trying to use the left mouse button.
Con No longer in production
Discontinued and there is no direct replacement.