[rublind]

my phone battery dies really fast if I use Strava, and I have to bring an additional battery.

The Elemnt also comes with a bike mount so I can just take a quick glance down for directions instead of having to take my phone out of my pocket. I could just get a cell phone mount, but I haven't gotten that far yet.

Also, a dynamo could work - but that would add additional friction and make it harder to cycle.