describe: Functions: heart rate, blood pressure, blood oxygen, sleep, body temperature monitoring, vibration reminder, physical status, medication reminder, fall alarm, check at any time. Support 4G network. The positioning is fast and accurate, all-weather, and the mobile APP can check the specific location in real time. You can know exactly where you are going, leave or arrive in a safe area, and send notifications. Fitness meter and sports data: The built-in gravity sensor records your movements throughout the day, helping you understand your daily activities more clearly. Accurate temperature measurement, equipped with a high-precision thermal conductivity temperature sensor, which can accurately measure the surface temperature of the human body. The mobile APP can set a time period for automatic measurement. High-precision real-time monitoring of heart rate and blood pressure. Professional-grade optical sensors make heart rate and blood pressure measurements more accurate. The APP displays measurement data in real time to monitor your health throughout the day. Scientific sleep records the complete sleep structure, sets the sleep period before you fall asleep, and can monitor the stages of light sleep, deep sleep, and awakening for you. Help you better understand your sleep quality. Vibration reminder for incoming calls, important calls will not be missed. When there is an incoming call, the bracelet will vibrate to remind you of the incoming call, so you will not miss important calls even in a noisy environment. Blood oxygen saturation is the percentage of the sum of oxygen content and hemoglobin capacity in the blood to the total hemoglobin capacity, that is, the blood oxygen concentration in the blood. Safety and health assistant: SOS for help. In an emergency, press and hold the SOS button for 3 seconds to quickly call for help. As a medication reminder, you can set the daily medication time through the mobile APP. Fall alarm, intelligently identifies accidental falls, and the bracelet automatically sends a call for help. One-click voice time telling, want to know the time? Press the SOS button and the bracelet will broadcast the current time. Package contents: 1 piece watch