Originally Posted by
Talkinghalls
I want it to give verbal push messages when I am coming up to a turn
Hours: 6-9 hours
Iphone 6
No mounts no sensors
Not sure how to use Iphone for tracking
Might be in bad cell areas, are Garmin's more reliable?
iPhone should be using same/similar GPS as a GPS device; therefore, cell coverage isn't an issue.
A dedicated GPS devise like Garmin will be more accurate and reliable. Additionally, you can count on a correctly configured Garmin lasting all day. My Garmin 510 (obsolete model) has had enough battery life for 12+ hour days without any concern.
If you want to use the iPhone, I recommend using Strava as your tracking app. Also, I would recommend having a back-up battery to get enough life out of the iPhone.
I am assuming that you are strictly looking to see the data after the ride. However, if you want real-time data while riding, get a Garmin.