I would like to get a gaming mouse for csgo, fortnite, etc.
What is the difference between the two mice?
G203:
https://www.amazon.de/...01MYQ4HJD/
G102:
https://www.amazon.de/...077Z5LHXG/
Which one is better or would you rather recommend the Corsair harpoon or steelseries rival 110?
The G203 is a slightly revised revision of the G102.
The two mice are virtually identical, except that the G203 supports USB 2.0, the G102 "only" USB 1.0.
But that does not really make a difference.
Since the newer cheaper to have I would just take the G203: https://geizhals.de/...62240.html
The 2003 is simply the successor. Look for PC hardware always on comparison sites such as geizhals.de https://geizhals.de/...62240.html