Logitech G502 Proteus Core Tunable Gaming Mouse Review

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Logitech G502 Proteus Core Tunable Gaming Mouse Review

I’m going to review Logitech’s newest offering in the G-Series lineup – G502 Proteus Core Tunable Gaming Mouse. Yeah, it’s a mouthful so we’ll just call it the G502 from this point on. While the market may be absolutely saturated with gaming mice, the G502 caught my attention with a few features that we’ll get to later.

Say Hello

Logitech’s latest gaming mouse looks sharp. Other than the bright LED that illuminates the “G” located on the rear hump of the mouse, it’s not too gaudy or flashy. The mouse comes equipped with a long braided cord which helps avoid tangling. The sides of the mouse are rubberized while the rest of the mouse is a mix of piano, matted and textured plastic. The texture of the rubberized surface actually adds to the aesthetics of the mouse and at the same time provides a solid and pleasant grip to the thumb and (in my case) ring finger. While looking quite different from Logitech’s well known staple of gaming mice, holding the mouse screams Logitech. It’s comfortable and solid. My first impression of the mouse was positive and I couldn’t wait to put the mouse to the test!

Logitech G502 Proteus Core Tunable Gaming Mouse Logitech G502 Proteus Core Tunable Gaming Mouse

The G502 has a number of features that we’ve come to expect from Logitech. Just above the thumb rest is a pair of buttons which are the browser back and forward buttons. The mouse wheel is fairly large, metallic and it provides accurate tactile feedback when turned. The G502 also features Logitech’s trademark hyper scrolling feature which can be toggled on and off by a button located immediately below the wheel itself. The DPI buttons are located on the front left edge of the mouse. As an added bonus, the G502 features a DPI shifting button located just below the DPI switch button for those who want to lower the DPI for those situations that demand precision and careful aiming such as sniping. If that wasn’t enough, the G502 features yet another button below the scroll wheel toggle for some breakneck speed scrolling. All in all, the G502 has 11 buttons, all of which are programmable. It’s nice to have options.


Test Time, Fun Time

I’ve said in the past that my all-time favorite mouse is the G9X. I still can’t really get over the fact that Logitech won’t refresh that model. However, with the release of the G502, Logitech was able to at least partially fill the gap left by the absence of the G9X. The mouse feels right. That’s huge considering the fact that I use a claw grip exclusively. The mouse’s “hump” isn’t too high nor is it located in a spot where the claw grip feels unnatural. The only real downside was that I wasn’t able to utilize the DPI shift button due to the style of my grip. Its location was too far forward for my liking. The DPI selection buttons can also be a bit awkward for some folks but it wasn’t too bad. However, I did find myself accidentally dropping the DPI during frantic gunfights during Titanfall matches. My spastic movements may have contributed more to that than the design of the mouse however…

Logitech G502 Proteus Core Tunable Gaming Mouse

Overall, the G502 was easy to get accustomed to. I didn’t really need an adjustment period like I did for the CM Storm Spawn and SteelSeries Rival however short they may have been. There was something distinctively familiar about the mouse – a testament to the design philosophy that Logitech follows and applies to all their gaming mice.



I touched on some of the design characteristics of the G502 such as the thumb rest, buttons, rubber texture and such but the fact that Logitech brought back the custom weights made me a very happy gamer. The bottom of the mouse can be pulled off by grabbing the light blue tab. That reveals a hexagonal chamber where the weights can be inserted. As a bonus, the weights can be placed in different positions to accommodate your personal liking. Do you want the weight to be closer to your thumb’s position? Go ahead, place it near you thumb. Do you want it toward the front of the mouse? Knock yourself out! The weight system no longer relies on a plastic cartridge and as a result, you control the distribution – something that I always wished for.

Logitech G502 Proteus Core Tunable Gaming Mouse

To top it off, the cord is braided and long enough for most desktop configurations. The braided cord is something that I’ve always equated to the quality of a mouse – kind of like the weight of a computer power supply.



The full name of the G502 is a bit long-winded but there is a reason behind it! I’m not sure if this is going to be a long running trend but the reason the G502 is labeled as tunable is the fact that the mouse can be tuned to different surfaces for better tracking and accuracy. I mentioned this feature a while back when I wrote up a review on SteelSeries’s Rival. As a default, the Logitech Gaming Software shows an additional tab when the G502 is plugged in (as long as you have the latest version installed). From there you can choose two different types of gaming surfaces that Logitech currently offers: the G440 and G240. The G440 is a large hard surface while the G240 is a cloth surface. Choosing one or the other and hitting apply “tunes” the mouse to optimize tracking and accuracy for the corresponding surfaces. If you don’t own a specific Logitech-branded mousepad, you can just choose to custom tune the mouse by going through a number of calibration screens. I’ve yet to try this on another mousepad or surface but I think I might give it a shot with the Nova Winner3 since it’s unique – just to mess around.

Logitech G502 Proteus Core Tunable Gaming Mouse: Mousepad Tuning


As with all other Logitech gaming hardware, the G502 works with the Logitech Gaming Software. If you’ve ever used another G-Series mouse with the software, it will all look very familiar with the exception of the gaming surface tuning tab. For details, check this link: HIT ME! Just a warning though, the link is for a PDF and it is 130 pages long!


While I would concede that the G502 Proteus isn’t a perfect replacement for the vaunted G9X, it is a worth spiritual successor due to the fact that it works extremely well for those who utilize the claw grip. The hump of the mouse is situated in such a way that the mouse can accommodate both palm and claw styles. The weight system is unique and the fact that you can choose the location of the weight adds an additional level of customization. As always, the laser is accurate; lifting the mouse during gameplay doesn’t result in the mouse jumping erratically and it’s comfortable to use. If you look at the pictures that I’ve included in this article, you’ll notice dust and some smudges due to extensive use. Sorry, I couldn’t help it. I used the mouse for at least a solid month every day before I sat down to finally put my thoughts to digital paper. If you’re already familiar with Logitech gaming mice and find yourself longing for the days of customizable weights and a little bit of flash, this is the mouse for you. It can be typically found for about $80 at all major retailers and e-tailors.