Precision For Serious Training
Train with greater precision and understand your effort in real time with the Suunto Smart Heart Rate Belt 2. Designed for athletes who demand reliable data across every session, it captures accurate heart-rate and beat-to-beat data directly from the chest — providing deeper insight into training intensity, recovery and performance.

With ZoneSense, beat-to-beat data helps distinguish between aerobic, anaerobic and VO₂max intensity in real time, giving you a clearer picture of how your body responds as effort changes.

Built for serious training, the belt delivers reliable heart-rate data during intervals, racing and changing intensities, while built-in memory allows it to record heart-rate data during swimming when a live Bluetooth connection isn’t available. Once back in range, stored data transfers to a compatible Suunto watch.

The soft, washable strap with silicone grip stays securely in place during long and demanding workouts, while improved signal protection helps maintain reliable measurement even when clothing shifts.

The Smart Heart Rate Belt 2 connects with Suunto watches, Bluetooth Low Energy devices, Suunto App and Sports Tracker App, giving you the flexibility to train across multiple platforms and devices.