Which one should I buy?

Hello!, im looking for new mice options since I want to change my G502, I have in mind buying either the ATK A9 Ultra or Scyrox v6, but im open to new options or ideas in case im going the wrong way, hoping to go for a good sensor such as the 3950 with a decent life battery and not so bad QC; my budget is around 1,200 mxn / 70 usd +-