●[High Performance Real-Time Heart Rate Tracking] By applying advanced ECG processing circuit, H603 directly extracts the heart rate data from the ECG waveform, with self-search algorithm, eliminates sound interference caused by movement and sweating, produces the most accurate heart rate data ●[Split Chest Strap Design] Different from traditional chest strap design, H603 adopts split chest strap design to give you a better product experience ●[Long Battery Life] Lasts 1000 hours: 1 hour a day, 4 times a week, 2.5 years working time. (Battery life data is based on laboratory testing. The actual situation may be slightly different due to the use environment and other factors.) ●[Ant+&Bluetooth Compatible] 2 data copies for 1 training, recording via ANT+ device and Bluetooth app at the same time, with stable transmission. *Note: The red light indicates that the monitor is ready to use ●[IP67 Dustproof & Waterproof] Meet your waterproof and dustproof needs in daily use. 1 Year Warranty (Man-made damage is not covered by this warranty)