The hardware and algorithm of the Magene H64 chest strap heart rate monitor have been optimized to improve the reliability and accuracy of heart rate detection during exercise.
Battery life lasts for 1000 hours: 1 hour per day, 4 times per week,2.5 years working time. (The battery life data are based on laboratory test. The actual situation may be slightly different due to the use environment and other factors.)
[Compatible Ant+ & Bluetooth] 2 data copies for 1 workout, recording via ANT+ device and Bluetooth App at the same time, with stable transmission. ANT+: Magene, Wahoo, IGPSPORT, Bryton, Black Bird Bluetooth: Zwift, Onelap, Strava, Kinomap, Wahoo Fitness, TrainerRoad, Rouvy, Fulgaz, Nike Run Clus, Openrider, Elite HRV, Selfloops HRV，etc..

【ATHLETE TESTED RELIABILITY】Our heart rate monitor armband has been tested by professional marathon runners, mountain enthusiasts and mountain cyclists. It shows that V9 built-in precision optical heart rate sensor technology provides highly accurate monitoring and measurement during your each exercise to help you optimise and get most out of your workout!
【BLUETOOTH & ANT+ DUAL MODES】V9 armband heart rate monitor support all device with Bluetooth and ANT+. Easy to connects with smartphones, tablets, sports watches and bike computers. Track and capture real-time heart rate, training zones and calories burned on your smartphone or tablet with compatible training apps.
【APPS COMPATIBLE】Works with most mainstream health and fitness apps like Polar Beat, Wahoo Fitness, DDP Yoga, Endomondo, Nike Run Club, Runtastic Pro, Zwift, Strava, Peloton, and more. Compatibility-iOS mobile devices: iPhone 5 and later, with iOS 11 or later. Android mobile devices with Bluetooth 5.0 capability and Android 5.0 or later.

【 REAL HEART RATE TRACKING 】 FITCENT heart rate monitor armband monitors your heart rate in real-time while workout. CL830 Sensor can help you track and capture real-time heart rate, training zones and calories burned on your smartphone or tablet with compatible training apps.
【 BLUETOOTH & ANT+ WIRELESS TRANSMISSION 】 Dual band technology (Bluetooth / ANT+) works well with smartphones, tablets, GPS watches and bike computers by Wahoo, Polar, Garmin and more. Compatibility mobile devices: iPhone 4S and later, iPad, Android 4.3 or later.
【 APPS COMPATIBLE 】 Works with over 200 popular heart rate monitoring fitness apps including Wahoo Fitness, Polar Beat, Zwift, Peloton, DDP Yoga, Runtastic, Runkeeper, UA Record, Endomondo, Map My Run, Komoot and Nike Run Club and more!

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Pedometer, Calorie Tracking, Lightweight, anti-sweat. Soft silicone with smooth finish for a sporty look. Comfortable and durable. It can not only remind you via vibrating when your phone receives calls, messages or other notifications but also displays details on the screen directly.
Fitness Trackers, when you turn on active mode during activities such as running, you can measure GPS route, calorie expenditure, speed, and heart rate in real time. Has the ability to analyse exercise data, recommended for daily health and exercise. Automatic recognition of walking, treadmill, outdoor running, outdoor cycling, rowing machine, Elliptical machine kinds of exercise modes, never miss every moment of exercise.