BLE 4.0 & ANT+ DUAL MODE: The heart rate monitor chest strap integrated with Bluetooth and ANT+ technology, allowing for pair with smartphones, tablets, GPS watches, and bike computers. REAL-TIME DATA DISPLAY: Exact monitoring of your training heart rate and calorie consumption in real-time, more accurate than optical heart rate monitor …
https://www.amazon.com/Monitor-Bluetooth-Waterproof-Compatible-Unavailable/dp/B0868NLKMQ

