MOOFIT Heart Rate Monitor Armband, Bluetooth & ANT+ Heart Rate Monitor, IP67 Waterproof, Optical Heart Rate Sensor, Rechargeable Armband Heart Rate Monitor Works with Zwift, Wahoo, Endomondo, Peloton

Precise Arm Strap Heart Rate Sensor: Optical sensor technology for a high-precision heart rate monitor that has been tested millions of times and has an accuracy of up to ±1 bpm. It records real-time heart rate data during training, analyzes your fitness data to maximize your training results.
HIGH-ACCURATE ±1BPM: Optical sensor technology for highly accurate heart rate monitor. It supports continuously measuring real-time heart rate data ±1bpm during exercise. Analysis of your fitness data and push to beat your goals.
LONG BATTERY LIFE: Moofit heart rate monitor armband comes with a rechargeable battery that allows you to work out for up to 25+ hours. LED indicator makes it easy to see if your device is connected and working.
IP67 WATERPROOF: Moofit HW401 armband heart rate moniter is the best choice for fitness enthusiasts. It can be used for handwashing, household chores, and in the rain. But is not recommended for swimming or bathing.
BREATHABLE AND LIGHTWEIGHT ARMBAND: The HRM armband is more comfortable and easily attaches to your forearm. No need for a bulky chest strap, give you a more cozy fitness experience.
PAIRING INSTRUCTIONS: It is compatible with IOS 7.0 or above and Android 4.3 or above. Works with most mainstream health and fitness apps like Wahoo Fitness, Endomondo, Zwift, Polar Beat, DDP Yoga, Mapmyfitness, iCardio, and more.