Originally Posted by
gregf83
It's better to use a garmin for strava unless you're very diligent about keeping your phone fully charged before going out on a ride and don't ride too far.
I've made it through 2 centuries with my phone. Had it charging in the car on the way to one, had a battery pack for the other.
A friend borrowed the battery for a double recently, and was glad he did. I always have my cateye as backup anyway.