Suunto Smart Heart Rate Belt Suunto Spartan Trainer Wrist HR professional and outdoor use

professional and outdoor use

Balanced for southern hemisphere

Make the Suunto watch yours and choose your strap from a wide variety of outdoor inspired colors and functional materials

You can also wear the strap with the included rubber boot

The strap fits all Suunto D4i dive computers

Suunto Smart Heart Rate Belt Suunto Spartan Trainer Wrist HR professional and outdoor useProvides precise heart rate data with all day comfort. Measures reliably during sports that disrupt wrist sensors. Stores heart rate data when the watch is out of range. Connects with the Sports Tracker app on Android, iOS, and watchOS. Comes with a size M strap; S and L sizes sold separately.