Comfortable and simpler to wear than a chest strap.
Easy to adjust the fit and remove the sensor for quick cleaning.
Our latest multi-channel optical sensor for precise measurement.
Up to 3 simultaneous connections with Bluetooth-enabled devices.
Wear detection allows for automatic device pairing for new workouts.
38 hours of full operation or 80 days in standby mode on a single charge.
Rechargeable with a magnetic USB charging cable.

SLEEK & SNUG

Simpler to wear than a chest strap, our soft fabric band lays flat around your arm and locks in place with its textured surface. The low-profile design prevents snagging on clothes or gym equipment, allowing you to forget you're even wearing it.

FLEXIBLE FIT

Set the perfect placement and tension on the durable elasticated band by simply sliding the buckle until it feels snug. The secure velcro enclosure enables you to quickly remove the sensor to easily wash the band.

WHY THE ARM?

Optical heart rate sensors work by using light to measure blood flow in capillaries beneath the skin. The top of your wrist is a convenient place for a watch, but is a challenging location for even the best sensors. Wearing on the arm offers our optical sensor an optimal amount of blood flow to gather heart rate data with accuracy equivalent to that of a traditional chest strap.

M On Cloud Waterproof