iGPSPORT HR50 Heart Rate Monitor Chest Strap, Bluetooth ANT+ 1 Year Battery Life IPX7 Waterproof HRM Sensor, for Cycling Running Yoga Fitness Sports

【AFE chip support, more accurate monitoring results】: Using the latest and most powerful AFE chip, supported by ECG monitoring, to generate the latest generation of heart rate algorithm with an accuracy rate of up to 98.3%.
【Lighter, thinner, better experience】: The size of HR50 is 64*34*10.1mm, which is narrower, thinner and lighter than the previous generation of products. After wearing it, the wearing experience is greatly improved.
【1 Battery, 1 Year Endurance】: Our Bluetooth heart rate monitor 1 battery can be used for 1 year, which can help you save battery costs.