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. 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..

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