Never really understood why one would use a speed sensor with a gps device. Genuine question.
Makes auto-pause work properly, rather than kicking it at random just because the GPS signal is weak or because the GPS engine in the head unit has decided to busy itself counting its toes for a while.
Find my Bolt very slow to respond when I stop moving. Using a Garmin speed sensor. Any reason to think it would be better with a Wahoo one?