moofit Heart Rate Monitor with Chest Strap Bluetooth & ANT+ Chest Heart Rate Sensor IPX7 Waterproof Fitness Tracker…

Amazon.com Price: $31,80 (as of 22/01/2021 18:40 PST- Details) & FREE Shipping.

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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. Analysis of your fitness data and push to beat your goals.