H303 Heart Rate Monitor

Accurate monitor heart rate, the best choice when you exercise.

Newly designed hardware and algorithms help you accurately monitor your heart rate while exercising, maximizing your exercise results.

Compatible ANT+ & Bluetooth

2 data copies for 1 workout, recording via ANT+ device and Bluetooth App at the same time, with stable transmission. ANT+: Magene, Wahoo, IGPSPORT, Bryton, Black Bird Bluetooth: Zwift, Onelap, Strava, Kinomap, Wahoo Fitness, TrainerRoad, Rouvy, Fulgaz, Nike Run Clus, Openrider, Elite HRV, Selfloops HRV

High Performance of Real-time Heart Rate Tracking

Applying advanced ECG processing circuit, H303 directly extract heart rate data from ECG waveform, with the self-research algorithm, eliminate noise interference caused by movement and sweating, output the most accurate heart rate data.

IP67 Dustproof and waterproof

LONG BATTERY LIFE，LASTS FOR 1000 HOURS

1 HOUR PER day

4 TIMES PRE WEEK

2.5 YEARS WORKING TIME

*The battery life data are based on laboratory test. The actual situation may be slightly different due to the use environment and other factors.

LED Light Reminding

* Note: The red light indicates that the monitor is ready to use.