The Logitech G603 is an extremely popular wireless gaming mouse. That popularity is for an excellent reason, as the G603 is a well made and high performing wireless gaming mouse at a very reasonable price made by a giant in the industry who make some of the best gaming mouse available.

The mouse can connect to your PC using either Bluetooth or the proprietary Logitech Lightspeed wireless connectivity solution that offers super-low latency, equivalent to wired solutions.

The G603 has a toggle switch to switch between HI Performance mode, which offers 1ms response times for gaming and an 8ms response time LO Performance mode for normal desktop usage, which consumes far less power and results in a longer battery life.

The mouse is powered by either one or two AA batteries, which also acts as the mouse’s configurable weight. With a one AA battery, the mouse weighs 112 grams, and with two it weighs 136g.

One of the fantastic features of this mouse is the absolutely amazing battery life it offers, and with two AA batteries installed, the advertised battery life on HI mode is 500 hours and on LO mode 18 months. Part of the reason this amazing battery life can achieved is that the mouse features no RGB lighting, definitely not a mouse for you if RGB is a must.

Here is a technical specification breakdown of the Logitech G603:

	G603
Year Released	2017
DPI	Adjustable up to 12000dpi
Buttons	6
Connectivity	2.4GHz Lightspeed and Bluetooth
Weight	112.3g with one AA battery 135.7g with two AA batteries
Sensor	Logitech Hero
Additional Features	Onboard memory profile Amazing Battery Life
Battery	One or two AA batteries

The G603 is a comfortable larger form factor mouse, most suited for a palm grip style.
Thus far, I have been impressed with its performance and build quality, and it is easy to see why Logitech as gained an excellent reputation for their gaming mice.

UPDATE ON CORSAIR IRONCLAW RGB WIRELESS GAMING MOUSE

Just a quick update on the IronCLaw Wireless Gaming Mouse I reviewed in July 2019, after just over six months of using the IronClaw as my daily driver mouse and loving it, the mouse wheel unfortunately broke.

After a quick search on the internet, this appears to be a common issue with Corsair mice, and the fact that Corsair must be aware of this design flaw and has done nothing to address this over the numerous iterations of different gaming mice is simply not acceptable.

Until this issue is resolved, I would recommend avoiding Corsair gaming mice for the time being.