Review: Logitech Proteus Spectrum G502 Gaming Mouse

7 months ago Jack 0
Spread the love

Slap some RGB LED, the word “GAMING”, and a random tatoo graphics on a mouse and you’ve got a high performance piece of equipment right? Wrong. That said, this one is pretty good. Read on for details.

Proteus, because that makes it cooler.

I’m the second user of this mouse. It’s been put through it’s paces already.


The Logitech G502 Proteus Spectrum features high-end mouse tech and decent customization options.

Features Right off the Box:
11 programmable buttons
customizable lighting using 16.8 million colors
5 x 3.6g weights for personalized weight and balance
Surface tunable gaming sensor with exclusive “Delta Zero” technology
5 on-the-fly adjustable DPI settings (200-12,000)
Improved Dual-mode, hyper fast scroll wheel
3 On-board profiles
Durable braided cables

“What does that all mean?” You ask. It’s a bunch of branding talk for:
You can set the buttons to do different things if you can tolerate installing Logitech’s software.
The “G” logo and the DPI meter glow different colors. You can set those in the software too.
The mouse’s tracking system can be adjusted to track more accurately on different mouse pads or surfaces.
Underneath the mouse, you can insert little angular weights to change the feel of the mouse.
You can set the mouse to change its sensitivity at the press of a button.
A button on top of the mouse changes the scroll wheel from clicky-scrolling to smooth scrolling.
The mouse saves your settings so you can take them with you.
The cable is braided.

In addition to what’s listed, this mouse features on board memory to store your preferences inside the mouse. That means that you could take this mouse to a different PC and keep using your settings.

Feature Set Points: 9/10 – There’s a lot here. More than I’d probably care to use.

Fit & Finish

Like most mouse, the body is mostly plastic. The buttons and main sections of the body are matte plastic accented with glossy lines and glossy secondary buttons. The thumb grip and pinky grip are both rubberized and textured for added grip. The profile / DPI lights are in the silvery grey section of the mouse near the thumb buttons and the “G” logo in the palm area lights up also. There are no other notable LED lights on the mouse.

On the bottom, several smooth surface contact points ensure that the mouse glides well. Far more surface pads are positioned toward the front than the rear. This may be because the mouse is balanced forward, but it shouldn’t make a big difference in the long run. The large central area of the mouse is a removable door held on by a magnet and two plastic tabs. The door’s attachment mechanism leaves it room to rattle when the mouse is set down with force. When that happens, the mouse makes a hollow plastic sound like a child’s toy. Function-wise, I don’t see any issue with the door. It does give the impression of cheapness (in the negative connotation) but that’s something users should be able to get over.

Underneath that door is the area for these angular metal 3.6g weights. Each weight can be placed individually so users can customize the balance of the mouse. They fit into slightly soft-touch rubberized molding that clamps onto the weights tightly enough to keep them from rattling loose. At least, they didn’t come loose for me. Angry gamers that lack the self control to keep their emotions from driving the destruction of their computer accessories might find a way to knock something loose.

G502 Weights

G502 Bottom PlateAll of the buttons feel secure, well seated, and clicky. The mouse wheel sticks out as a point of low quality though; especially since it is a main feature of the mouse as well. The metal mouse wheel feel solid, comfortable, and controllable. Changing it from clicky to free-spinning is easy.


The issues are that the metal construction weighs down the front of the mouse and that weight also causes the mouse wheel to rattle around during use. Quick left to right motions produce a rattle that can be heard as well as felt in your mouse hand. That means the wheel transfers momentum into the mouse body that could throw off extremely fine motions. No, you’re not likely to encounter a time where the mouse wheel is to blame for missing a clutch shot. If you’re willing to blame a loss on that, then you have a lot to learn about life.

Fit & Finish Points: 7.5/10 – Mostly great, but the rattles cost points.

User Experience

Logitech Software

Logitech’s software is easy enough to navigate and offers customization of buttons and DPI increments for the mouse. It also contains the lighting settings. I didn’t have any issues firing it up customizing the mouse in just a few minutes.

General Use

For regular computer use the mouse seemed to track well. The extra buttons seemed nearly useless to me through basic tasks, but I can imagine many ways they could be handy for more complex work. Maybe mapping certain keys to a button might speed up video editing or other kinds of actual work. The mouse wheel for scrolling seemed nice. The side-to-side tilt of the mouse wheel seemed unnecessary in most cases, but again it’s something that I can see uses for. Those are probably good candidates for button remapping.


The accurate tracking and clean feel of the buttons on this mouse are great for gaming. The weight and balance of the mouse combined with the scroll wheel issues I mentioned in the “Fit & Finish” section cost some points here. With the weights in, the mouse feels mostly balanced, but too heavy for even my large hands and arms to move speedily without the mouse’s inertia throwing off my motions. Removing the weights set the balance off and further exposed the judder of sharp stops after quick motions caused by the heavy scroll wheel. I don’t think it was enough of an issue that it could cost users the competitive edge. On the other hand, the feel of it keeps reminding you that you’re using the mouse. Some mouses will let you forget that they are even in your hand. This one doesn’t let you forget.

User Experience Points: 7.5/10 – More than good enough, but added features came with added cost in this area.


The G502 stacks features on top of features. What users have to decide, and maybe they already did by reading this review, is whether or not those features are necessary or even desirable. I would recommend this mouse for people that know they can use the added buttons and don’t mind the weight, or for people who really want the smooth scrolling wheel. It’s a good all-around performer that’s low on hassles but does have a few cheap feeling elements that felt out of place for the price.

Editorial Points: 7/10 – The mouse is very good, but just didn’t grab me. These points account for my tastes.

Total: 24/30 w/o Editorial Points

Total: 31/40 with Editorial Points

Other mouses with fewer buttons and more plastic can actually feel a little better in cases where speedy flicks are more important than button options.

If you’re interested in purchasing this mouse, please follow my Amazon link below. Purchasing through my link helps me generate more content for this site.