Garmin HRM-Fit heart rate monitor

Characteristics Stopwatch: No Bluetooth Low Energy (BLE): Yes Bluetooth version: 3.0 Waterproof: Yes Bluetooth range: 10 m Measurement type: Chest Product color: Black Heart rate data transmission: Bluetooth/ANT+ Power Battery life: 1 year(s) Number of batteries supported: 1 Supported battery type: CR2032 Weight and dimensions Product width: 335 mm Product depth: 17 mm Product height: 33 mm Product weight: 53 g Sustainable development Sustainability: Yes Certificates of conformity UKCA CE