Posted by a reviewer on Amazon

However after 5 years there started to be occasional double clicks i could not fix with cleaning or a new battery

Posted by a reviewer on Amazon

When i got my new mouse there were no new purchases of this available or i would have bought it again

Posted by a reviewer on Amazon

And i much prefer using my rechargeable double a batteries once a week as opposed to charging via cable every day

Posted by a reviewer on Amazon

The only reason i bought this over the g303 is because i want 500 hours battery life if you dont mind swapping batteries more often use nimh rechargeable then the g303 by far easier to grip as a gaming mouse the shell of the 603 is as bulky as the ball mice from half a century ago making it hard to pick up and difficult to use for fast paced gaming

Posted by a reviewer on Amazon

This one has 2 aa batteries which lasts more than 500 hours when in bluetooth nongaming mode

Posted by a reviewer on Amazon

The bluetooth mode has a lower polling rate though and the cursor is therefore noticeably more jittery

Posted by a reviewer on Amazon

Doesnt really pose an issue though its just something i notice that im not hugely fond of but ill just put it down to the limitations of bluetooth and its neat that its even there in the first place

Posted by a reviewer on Amazon

Couldnt ask for any more therealso something weird i noticed is that it can store an extra 5th dpi profile that didnt seem to be accessible by default i accidentally added it through a software on linux and though that was interesting