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, iPod touch
Built-in GPS - built-in to acquire satellites quickly to track how far, how fast and where you run, even under tree cover. No phone required!
24/7 heart rate monitoring - warm gives you heart rate all day and night -no additional Strap required.
Vibration alerts - helpful vibration alerts notify you of running prompts, activity tracking milestones, smart notifications and virtual pacing progress.
Updated display - new high resolution display that is perfect for indoor/outdoor viewing.
Smart connectivity - auto uploads, smart notifications, live track, music controls and automatic sw updates.