The Beat 20 is a compact wearable heart rate monitor that can generate an ECG with medical accuracy. No wires. No patches. Maximum freedom of movement. The heart rate monitor built into your workout gadgets may not offer the best accuracy — for a number of reasons: optical noise, skin-related inaccuracies, motion noise, sensor location and more. As heart rate is a key indicator for workout intensity and your health in general, it is very important that you have reliable results. And here’s where the Beat 20 comes in. F Accurate Heart Rate TrackingThe Beat 20 is a wearable heart rate monitor that is completely free of wires and patches, and is capable of generating an electrocardiogram while maintaining maximum comfort and medical accuracy. Get the Most out of Your WorkoutsExercising at the correct intensity can help you get the most out of your physical training, making sure you're not pushing too hard — or not pushing enough. Calculate your desired target heart rate zone — the level at which your heart is being exercised and conditioned but not overworked. Dynamic Heart Rate MonitoringThe Beat 20 delivers accurate real-time heart rate tracking, displays your current heart rate zone and sums up overall performance data after your workout. This will let you better understand the effect of your training and help you fine-tune the intensity of your future workouts. Resting Heart Rate TrackingYour resting heart rate is a good indication of your general well-being. In certain cases, a lower resting heart rate can mean a higher degree of physical fitness. A high resting heart rate, on the other hand, could be a sign of an increased risk of cardiac problems under certain circumstances. You can use the Shanren Sport app to check your resting ECG and use it as a base for adjusting your physical activity. 24-Hour Heart Rate MonitoringTrack your heart rate around the clock, non-stop. Get a comprehensive picture of your resting heart rate, how you react to workouts of different intensity and find an optimal and safe exercise routine. Reusable High-capacity StorageThe Beat 20 comes with built-in reusable storage memory with the capacity for 100 training sessions. Data recording starts as soon as you put the monitor on. Early Overexertion AlertTo help you avoid over-exercise, the Beat 20 will give you a gentle but easily noticeable physical warning that you may be overdoing it. This will be your cue to adjust the intensity of your workout. More CompatibilityThe Beat 20 uses ANT+ and BLE 4.0 to connect to other devices. This makes data sharing a breeze and you can easily share the monitor’s data with your sports watch, phone, bike computer or any other Bluetooth and ANT+ enabled device. 280-hour Working TimeThe Beat 20 comes with lots of battery life — you can use the heart rate monitor for up to 280 hours on a single full-capacity charge. Charging is effortless with the dedicated magnetic charger. Battery Inside / Magnetic Charging S Product Name: BEAT 20 Model: SR-HRM20 Communication: ANT+/BLE 5.0 Battery: Built-in rechargeable Li-battery Work Time: 280hrs Strap Length: 65-95cm (25.6-37.4in) Sensor Size: 62x35x11mm Waterproof: IP68 App Supports: Shanren Sport & others Compatible with: Shanren Discovery Pro, Raptor II Pro IOS & Android Devices: IOS 7.0 or later, Android 4.3 or later Functions BEAT 20 BEAT 15 BEAT 10 Communication BLE5.0/ANT+ BLE5.0/ANT+ BLE5.0/ANT+ Dynamic Heart Rate Yes Yes Yes ECG Graph Yes No No Heart Rate Zone Yes Yes Yes Resting Heart Rate Yes Yes Yes 24-Hour Heart Rate Yes No No Rechrage Magnetic charging Magnetic charging No Built-in Memory 100 sessions/260 hrs Yes No Vibration Alert Yes Yes No Steps Yes Yes No Distance Yes Yes No Calories Yes Yes No Waterproof 30 meters IP67 30 meters Firmware Update Yes Yes No