Logitech G604 LIGHTSPEED Gaming Mouse with 15 programmable controls, up to 240 hour battery life, dual wireless connectivity modes, hyper-fast scroll wheel - Black

Best mouse I've owned, and very sad it's been discontinued. An upgrade from the G602.Pros:- Six side buttons and two additional buttons by the left click.- Side scroll on the scroll wheel.- Scroll wheel unlock allows the scroll wheel to free-spin for rapidly scrolling long pages.- Bluetooth/Lightspeed quick toggle allows quick swap between devices.- Quality materials make the mouse feel comfortable to hold, and the scroll wheel has a very satisfying weight to it.- All keys are fully reprogrammable (aside from scroll wheel unlock and lightspeed/Bluetooth toggle). By downloading the Logitech program you can reprogram all mouse functions, including left/right click and scroll up/down/left/right. You can use the program to automatically switch between key bind profiles depending on which app you are using or you can set (up to 3 I believe) profiles on the mouse itself, which will be usable on any device you connect the mouse to. You can set one key to switch between profiles, as well as set a "G-Shift" key that toggles all key binds while you have that key pressed. This allows a huge amount of key bind customization.- I do not play games competitively, but I have never had issues with input lag. I use the lightspeed dongle for my gaming PC, and the Bluetooth connectivity for anything else (I believe you can have 3 devices paired at a time, though I'm not positive as I only have 1 other device I connect regularly). That said I have used the Bluetooth connection for gaming on many occasions and I personally don't notice any input lag.- The mouse runs on 1 AA battery, and in my experience will run on that battery for slightly less than a year.- Pocket for the lightspeed dongle and on/off switch allows you to easily pack up the mouse and toss it in a travel back for transport without worrying about losing anything or draining the battery.- I bought this mouse for $65, and I would have paid much more for it.Cons:- The Logitech G-Hub program (and its predecessor before it) can be really annoying to use, and sometimes fail to correctly switch your profile to the correct program-specific setup, leaving you without your key binds in-game. Never had any problems with profiles saved to the mouse though, so manual profile toggle still works great.- The use of AA instead of a rechargeable battery may not be preferable to some. I find it convenient, but perhaps it is more wasteful of resources. I tend to get slightly under a year of use out of 1 battery.Additional Info:- After ~3.5 years of use the right click stopped working. By this time the mouse was discontinued and there were no other mice like it that I could find, so I bought a new chip and took the mouse apart to replace the old one. The chip cost me $14 on eBay and the repair was simple (though there are many screws and parts, so take pictures and watch a video online first). It seems you can replace almost all of the parts for fairly cheap.- The grip on the thumb rest came up from the plastic underneath it after a couple years, and I had to glue it back down.- Other than that, the quality materials have held up well, and the only sign of wear has been a slight sheen that has appeared on the left/right click buttons and some scratches on the shiny strip down the middle.- This mouse (and the G602 before it) has made my life significantly easier from allowing me extra key binds for gaming to quickly navigating the web. Well worth the cost.

Bought this mouse in 2020, it only lasted a year but it was so good I got another one in 2021 for $85 here on Amazon. Now four years later it just stopped working, was going to get another to find out this exact same mouse is now nearly 4x the price. I'm not into tech so I don't know why but the G604 price has me lost for words

The Logitech G604 looks and functions as described, I like the dpi buttons location and the side buttons are a nice plus, I’ve already assigned functions to them that streamlined my workflow considerably, I do some gaming, writing, and photo and video editing. The infinite scroll wheel is a feature I didn’t know I needed till I used it, saves a lot of frustration from scrolling, the scroll left and right by tilting the scroll wheel is a major plus.So far I only used it in lightspeed mode over the USB receiver, no interference from wifi as I run my network in 5GHz mode, the response time is indistinguishable from wired mice, I used it in games, mainly Assassin’s creed to no impact on performance whatsoever. I didn’t use the extender cable to plug in the receiver as I have it plugged directly into my usb hub.The weight of the mouse is quite acceptable and only took a half hour of use to get used to as my previous one was lighter, but it posed no problem for me and really that weight is nothing to my hands. The mouse is quite ergonomic and cause no pain or soreness in 4+ hours of daily use.Battery life is good so far, I’ve used it for 10 days now on lightspeed mode and still going, avg 4-5 hours daily, and the software still shows me a full battery, which brings me to...Software! G hub is certainly not the most intuitive thing to use, a bit of a learning curve, but I’m taking it easy and exploring it bit by bit, I’ve already changed my dpi levels, I prefer generally higher dpi as my mouse movements are more twitchy than using full elbow movements, and I’ve played with assigning functions to the G keys. The software is not intuitive but by no means a reason to discourage buying this product.No RGB, fine with it, I’d much rather pay more for functionality than festival lights that would stay hidden under my hand anyway during use.Build quality is great, the mouse looks and feels premium and solid, the buttons are firm with no wiggle, clicking feels soft and produces low soft sounds, which is to my liking. The scroll wheel is metal which makes it a bit louder than average, though not in a bad or distracting way. The battery and receiver cover is solid and holds tightly to the mouse body when in place with no play whatsoever when using the mouse, the rubber textured middle of the mouse, including thumb rest, feels good on the skin. Buttons do not attract fingerprints which is a huge plus, though the part with the scroll wheel has a glossy finish which is a fingerprint magnet.In conclusion, this is a great quality product with all the functionality one would want from a mouse for gaming and work with a great deal of customisation without unnecessary bling, the mouse looks sleek and professional and elevates the look of your workspace, the software could use some improvement but not a deterrent. All in all I would definitely recommend buying this, not only because it’s a quality product, but also for the freedom of wireless! I’ll update my review as I use the mouse and discover anything more to outline.Edit: 1 year 3 months on,The mouse works as good as ever, still looks new, I've been operating it for the last 6 months with a rechargeable battery. Click sound and feel still the same, no degradation to rubber or plastic, even side button labels are intact. one of the best purchases ever.One note: use logitech g hub only to dial in your preferred settings, save the profile to the mouse then use it in on-board mode from then, software mode interferes too much in the functionality for my liking and some functions even work better; I had assigned volume up and down to buttons G8 & G9 and it only worked in tiers, as in I had to repeatedly press the button for the volume slider to move, in onboard mode the duration of the press determined the movement of the volume slider, as in it moved as long as I pressed the button, same thing with side scroll.