Wahoo Elemnt Bolt (V2 Color)

on top of what has already been stated, Battery life on the 530 is far better. Wahoo claims 15ish hours. 530 IIRC claims 20. I’ve personally recorded 32+ hrs without recharging(connected to HRM, PM, and Di2, GPS only, not navigating, Back light on solid for ~14 hrs of the 32.)