Function: heart rate, blood pressure, blood oxygen, sleep, temperature monitoring, vibration reminder, body status, take medicine reminder, fall alarm, check at any time. Support 4G network. Fast and accurate positioning, all-weather accurate positioning, mobile phone APP can real-time view the specific location, where to go can accurately know, leave or arrive at the safe area, send a notification. Fitness meter and exercise data: Built-in gravity sensors that record your movements throughout the day help you get a clearer picture of your daily activity. Precise temperature measurement, equipped with high precision thermal conductivity temperature sensor, can accurately measure the body surface temperature. Mobile APP can set time period automatic measurement. High precision real-time monitoring of heart rate & blood pressure, professional grade optical sensor, let heart rate & blood pressureMore accurate measurement, APP real-time display measurement data, monitoring your health throughout the day. Scientific sleep, record the complete sleep structure, set your sleep period before falling asleep, can monitor the light sleep, deep sleep, wake stage for you. To help you better understand your sleep quality. Call vibration reminder, important phone is not missed. When a call comes in, the bracelet vibrates to alert you to a call, so you won't miss an important call even in a noisy environment. Blood oxygen saturation is the percentage of the combined capacity of oxygen and hemoglobin in the blood to the total hemoglobin capacity, namely the blood oxygen concentration in the blood. Safety and health assistant: SOS SOS, emergency, long press the SOS key for 3 seconds to quickly call for help. Take medicine reminder, you can set the mobile APP to set the time of taking medicine every day. Fall alarm, intelligent identification of accidental fall, bracelet automatically send fall distress. One click voice time, want to know the time? Press the SOS button and the bracelet will broadcast the current time.Waterproof grade: deep waterproof. Standby time: 5-7 days. Battery: 800mAh.