Logitech’s G (for gaming) series features the highest pixel count sensors, and classy aesthetics that includes grip-friendly curves, and slicks-as-teflon feet for a smooth glide-something that gamers will appreciate. The G9 goes a little high tech; and includes a laser sensor that allows a whopping accuracy of 3200 dpi. Although gamers will recognizes this as marketing rubbish (no gamer worth his salt plays at even 2000 dpi), the fact remains that the sensor on the G9 is sensitive indeed. Also, onboard is the micro precision scroll wheel, which we will recognize as a clone of the excellent unit on the MX revolution, and two working modes. One you can use as a regular wheel with clicky feedback. We did mention modular-the G9 has changeable grips-the two are the regular stripped down grip and an additional bezel-like unit which clicks on to the outer body of the mouse ,making it significantly wider and hence the name wide grip.There are also other grips that you can purchase from Logitech,each customized for a certain type of usage. From its predecessor-the G5, the G9 gets a Weight cartridge,only this time its cleverly removed by applying pressure on its notch at the rear. The Weights on the G5 had a tendency to rust.Thankfully, these seem to have been adequately treated.One issue that we noticed right away(and what is possibly a major flaw)is the slight play between the weight tray and its housing-truly annoying while using the mous.Also,if you remove the tray,you get an ugly hole at the rear of the body,whereas the G5 was neater with the tray sloting underneath the body.

Practically, the side buttons feel a little too soft, mainly because there is a slight gap between the outer body and inner body,which has contacts for the buttons. There is a DPI indicator (whose color can be changed via drivers-neat but useless!),that is useful to let you know how much to dial up for dial down the DPI.
At $150, the G9 is very expensive for the innovations and features it offers. 3,200 DPI is just gimmicky because nobody will use this mouse at that resolution. The Lachesis from Razer is another similar high DPI product (4,000 DPI) that does a better job, at a slightly higher price. The polling frequency of 1 kHz is something though,so is the ability to store and load profiles. This is a good mouse for the serious fragger, but not at its current price.

Specifications:
Sensor 3200 dpi, polling frequency 1 KHz, customizable grips, customizable weights.