The Proteus Spectrum gaming mouse is the updated version of the Proteus Core. Its weight door has no blue accent and the G light can change colors. All other specs are identical to the previous model.
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Pro Highly customizable gaming mouse
The G502 gaming mouse has 11 programmable buttons: Left, right and middle click as standard PLUS 3 thumb buttons, 2 on the side of left click and one behind the mouse wheel. On top of this, the mouse wheel can tilt left or right for extra functions. All of these buttons can be binded to do pretty much whatever you want. You can also customize the weight of the gaming mouse to adjust how it feels to move across your mousepad.
Pro Dual-mode scroll wheel
The scroll wheel can act as a smooth unhindered scroll or a notched scroll depending on how the user wants to use it.
Pro Scroll has horizontal clicks
The scroll wheel can be pressed form side to side to enact two different programmable button presses.
Pro Comfortable side button placement
Even though the gaming mouse is a bit small, the button placement feels just right.
Pro Thumb-rest and textured side grips
The thumb rest and texture side grips helps the user grip the device better.
Pro Amazing 12000 CPI optical sensor
The Logitech G502 Proteus Core gaming mouse has an impressively accurate 12000 CPI optical sensor that's capable of tracking speeds up to 7.5 m/s. There is no acceleration, angle snapping, prediction or jitter even at max CPI.
Pro Adjustable weight
Users can adjust the weight with up to five 3.6 gram weights.
Pro Great for palm grip, good for claw grip
Palm and claw grip both work pretty well on this device.
Pro On-the-fly 5-state CPI switch
Users DPI profiles can be switched on the fly.
Pro 3 On-board profiles
This gaming mouse can store 3 different macro profiles and can switch between them on the fly. Since they are on-board, no software is required to set the gaming mouse up on another system.
Pro Adjustable center of balance
The adjustable weights of the device can be offset from one side to the other allowing for an adjustable center of balance.
Pro Funcional lift-off-distance lower than 1.2mm can be achieved
By calibrating the sensor with the users mousepad a lower lift off distance can be achieved.
Pro Braided cable
Con Only 3 thumb buttons
Not many players realize that thumb- ring finger grip is so crucial for character movement in any fast paced PVP game. With 2 more thumb buttons on Logitech G502 it would be ideal hybrid mouse for any MMO.
Con Software doesn't support Linux
LGS (Logitech Gaming Software) does not have Linux support, so the mouse cannot be tuned or configured under Linux. However, if the mouse is configured on a different OS, the configuration will work on Linux, since the profiles are stored on the mouse itself.
Con 121g default weight might be an issue for some
121 grams is relatively heavy for a mouse, making flick movements in FPS games much more difficult to pull off.
Con Heavy scroll wheel that wobbles in free-scroll mode
The free scroll setting has wobble in the wheel.
Con Made for right handed users
The shape does not work in your left hand.
Con Heavy middle mouse click
The middle mouse click is very hard to press, often times making you scroll, instead of clicking.
Con Can get uncomfortable after long usage due to weight and shape (especially for larger hands)
The mouse weight is already a lot, but for better upward and downward weight distribution, it asks you to insert at least 2 weights in. The shape, however is very much based on hand size and angle preference.
Con Potential pinning bug
Changing the surface setting in the app may potentially cause random spinning ingame for a random period of time (usually ~5sec). This has something to do with the surface of the mousepad being used and a particular setting of the mouse. In order to address this issue, you can return the mouse back to its default surface setting.
Con The LED behind the G is really bright (can be disabled though)
The LED backlit G on the back of the mouse can be quite bright in a dark room. For users that do not want to use the application that is necessary (or can't, like say Linux users) the light is unable to be turned off. Of course within the application for the mouse the light may be completely turned off.
Con Placement of button on left side of mouse
The button is directly under the user's thumb so when you try to lift the mouse, you would end up pressing the button also.