LogitechG602 Lag-Free Wireless Gaming Mouse – 11 Programmable Buttons, Upto 2500 DPICarbon Neutral Certified by SCS Global Services

Been using this mouse for awhile now and will compare it to the Logitech MX1100 it replaced...---First, my stats---Primary use: Photoshop, video editing, internet, etc... (not a gamer)Usage: 9 hours a dayHand size: 7-7/8" base of palm to tip of middle finger, 9-1/2" thumb to pinky stretchedHeight: 6'---Comfort---The MX1100 is one of the very first mice I thought Logitech nailed in terms of comfort (larger/taller mouse than most). I've never had any fatigue or issue with the MX and loved how well my hand conformed to the shape of it. Once I received the G602, I knew it wouldn't be as tall, it has a shorter profile so that you lay your hand flatter instead of cupping it like the MX.The G602 is good/great in terms of comfort but not as good as the MX which I would consider fantastic. The wing extending on the left side is a good length and my thumb rests very well on it. The texture of the wing is a textured soft-touch material that has some grit to it, some say it's like a sandpaper or rough surface but I don't find that to be the case at all.Although this mouse is geared towards palm-grippers, I find that claw-gripping it isn't an issue and would be fine for most however I haven't used it in this regard for extended periods of time. I tend to palm-grip my mice but at times will have a hybrid grip between the two and have had no issues or discomfort.---Buttons---The left/right click buttons are very sensitive compared to the MX1100. It barely takes any force to register a click, took me a little bit to get used to at first (maybe 10 minutes), but have always wanted mice to be this sensitive so this is a big plus for me.Button placement for everything is near perfect for my hand size (see stats above). I can reach every button with ease along with being able to distinguish each of the 6 thumb buttons. The thumb buttons are stiffer than the typical forward/back buttons of most mice to ensure you don't accidentally press something.Wish this mouse had the hyper scroll feature at least, but understand why they didn't as it would take sales from their flagship G700s mouse. However, the scroll wheel is fairly decent even though it doesn't have hyper scroll. It will scroll pages based relative to the speed you use, so if you scroll fast it will scroll more of the page but if you go slower it will scroll at a slower rate to give you more finite control. Took a day to get used to compared to using the MX1100, I still find the hyper scroll the superior scroll wheel to use but since this is geared towards gamers, I don't think this is much of an issue.---DPI/Tracking---Tracking has been spot on, haven't had any issues to date. I tend to use the 2500dpi which has been my preference for awhile. If you need more than that you can always increase the setting in your OS to make it more sensitive, I doubt anyone would need to max the dpi and the OS setting and feel they needed more.One of the biggest issues I had with the MX1100 was that the tracking wasn't precise at times. In photoshop, there were numerous times it would skip pixel increments when trying to drag an object or create something to be a certain pixel amount (ie: make a box 250px, but cursor would go to 251px or 249px and never 250px). The G602 does not have this issue.---Construction/Weight---The mouse seems to be very high quality as most of the better Logitech mice are. I can imagine over time the rubber palm/grip area will get gunked up from use and will be more of a pain to clean but time will tell. The materials seem to be a step up from the MX1100, but only slightly as the MX was already nice to begin with.The G602 with both batteries is lighter than the MX1100 and is noticeable. I've always liked heavier mice and even though this is lighter than what I was used to, it still has a nice weight to it. You can always just use one battery to help lighten it if you prefer it to be lighter. Between the two, I prefer the weight of the G602 as it seems perfect.---Modes/Battery life---When doing an A/B comparison between performance and endurance mode, there seemed to be slightly better tracking movement in performance mode, but it was so minor that this was the only way for me to notice a difference between the two. This may be more noticeable in games as I'm sure it reduces the polling rate from 500hz to 125hz, I left it on performance.Battery life is very good and although some people prefer having the ability to connect a usb to charge a mouse so they can continue to use it (like when gaming), I much prefer to swap batteries out (have spare eneloops ready all the time) as it isn't that often you need to.-----------------------Overall I think this is a great mouse compared to the MX1100 for what I use it for and want it to do especially considering I don't use it for gaming. There are some little minor things I wish it had like the hyper scroll wheel and to be slightly taller like the MX, but this is a gaming mouse and understand why they didn't go that route.

Finally found a suitable upgrade to my $9 TechNet mouse from earlier (https://smile.amazon.com/gp/product/B013WJRG5C). That mouse was good for the price, but I wanted something a little larger. At first I tried a different Logitech mouse, but for some reason that one had worse precision than the TechNet.Finally went for this model as the reviews were good and it was said to be larger than most mice, which is nice as all the ones I've tried previously were a bit too small -- at least when using it for hours for focused gaming, as it tires your hands to grip a small mouse tightly. (The other things I liked were its 6 side buttons, and the advertised long battery life.)I'm happy to say that the precision on this model is good, I'd say ~30% better than the TechNet. I think there is still some room for improvement (probably -- it's possible it's due to just shaky hands or a bad mousepad), but I don't think there are many models that will outdo it for under the $36 I paid.Another thing I like is that the DPI setting is controlled by the two buttons near the left-click. This means you can change the DPI up *or* down, instead of having to cycle through all 5 presets. Also, it displays your current DPI level using that LED in front of the side-buttons, which is nice for confirming you have the correct preset instead of having to cycle through while wiggling the mouse to find the one you want (like I had to do for the TechNet whenever I'd accidentally press the DPI-change button, or when I wanted to change DPI).Moving on, the side buttons work fine and are nice, but the battery life isn't quite up to what they claim. That's probably due just to my using my computer for longer periods than most people. Anyway, for my high computer use, I got a "5% battery" warning today, and I've had the mouse for about 2 months. That's actually still pretty good for 2 AA batteries, but wanted to note that it might not last as long as it says, depending on your usage. (if that "5%" ends up lasting significantly longer than the current 2 months, I'll update this review later to say how long it really lasted)Anyway, overall I'm quite pleased with the mouse, and it's currently the one I recommend for someone who's willing to pay more than the ~$10 for the cheaper (but also pretty good) TechNet model linked above.EDIT: Okay, the battery just ran out. This means that, for my usage, the battery lasted for 2 months and 13 days (74 days). I thought the product page listed more than that when I bought it, but on referencing it again, my results are actually in-line with the description.They say 250 hours in performance mode, or 1440 hours in endurance mode -- 1440 hours would be 60 days vs my 74. However, two things could disrupt the simple comparison:1) I think I've actually had my mouse in performance mode the whole time. Thus, it should have only lasted for 250 hours, *if used continuously*. Which brings to point #2.2) I don't use my computer every day.So here's what I'm guessing:* The "1440 hours in endurance mode" (unlike the "250 hours in performance mode") represents how long it will last if you use the mouse in a normal way -- for everyday tasks, and some bursts of activity like when I'm gaming or programming.* The reason having it in performance mode didn't reduce it from this estimate much, is that I don't use it too frequently, so most of the drain was just from the passive "no use" reduction rather than active reduction.Anyway, to sum up my not-that-thorough analysis: For normal usage, it seems the battery lasts for about 2.5 months, whether you have it in performance or endurance mode. Which seems pretty good to me. Feel free to augment my results with others though. I'll also see for myself if the next session lasts as long. (maybe I just used it even less than I thought I did during the period, idk)