Garmin Forerunner 35 Watch, Black. Accelerometer (calculates distance for indoor workouts, without need for a foot pod). Android Requirements 4.4 OS or later, Bluetooth 4.0 or later. Apple iOS Requirements iOS 10.0 or later, compatible with iPhone, iPad, and iPod touch. Battery: Rechargeable lithium ion.

Easy-to use GPS running watch tracks how far, how fast and where you run.Special Feature:Bluetooth.Water Resistant: Yes
Estimates heart rate at the wrist, all day and night, using Garmin elevate wrist heart rate technology
Connected features: Smart notifications, automatic uploads to Garmin Connect, live tracking and music controls (when paired with a compatible smartphone)
All-day activity tracking estimates steps, calories and intensity minutes and reminds you when to move
Automatically uploads your data to Garmin Connect, our free online fitness community where you can join challenges, receive insights and share your progress as you meet your goals