More smart:Incoming call notifications, reject a call on band, SMS, email, SNS notifications, vibration alerts, smart alarm, timer. Health assistant: 24-hour real-time continuous heart rate monitoring; night infrared heart rate monitoring; heart rate warnings; HUAWEI TruSeen 3.0 heart rate technology, a new generation of dynamic heart rate algorithm from Huawei 2012 Lab, dozens of exercise scene optimization algorithms, more accurately measurements. Automatically record your periods of REM, Stable Sleep (deep sleep), Unstable Sleep (light sleep), and Awake. Use HUAWEI TruSleep monitoring technology to analyze your sleep quality, falling asleep monitoring is over 95% accurate. Combining Huawei AI technology, six categories of typical sleep problems, providing 200+ suggestions for improvement (Works with Huawei Health App).