<b>MOOFIT Heart Rate Monitor with Chest Strap, Bluetooth/ANT+ Chest Heart Rate Monitors IPX7 Waterproof Fitness Tracker Chest Strap</b><br><br> <b>BLE & ANT+ DUAL MODE: </b>The Heart Rate Monitors integrated with Bluetooth and ANT+ technology, allowing for pair with smartphones, tablets, GPS watches and bike computers.<br><br> <b>REAL-TIME DATA DISPLAY: </b>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.<br><br> <b>COMFORTABLE TO WEAR:</b>The heart rate chest strap weight is 1.6 oz total, perfectly solved the disadvantages of traditional heart rate monitors thick and easily to slip. The soft fabric band length is adjustable from 25.6" to 37.4", which makes it more comfortable to wear.<br><br> <b>REPLACEABLE BATTERY: </b>The Heart Rate Monitor Strap comes to replaceable CR2032 battery, battery life last 10-12 months. And designed IPX7 waterproof, but not suitable for swimming.<br><br> <b>BROAD COMPATIBILITY: </b>Compatible with Hundreds of third party fitness apps including Zwift, Heart Graph, Wahoo Fitness, Endomondo, Adidas run, Peloton, and many more.