Feature:1. Heart rate, blood pressure, blood oxygen function interface; press and hold the touch button for 3 seconds to light up the sensor, start testing heart rate, blood pressure, blood oxygen, the vibration prompts to stop the test after the test is completed.2. Sleep management: wear sleep, automatic sleep monitoring, sleep quality, know whether you sleep well.3. Sports mode: long press to enter multi-sport mode hiking, running, cycling, mountain climbing, long press to exit in the mode.4. When the watch is not in use for a long time, please charge it at least once a month to avoid battery damage. The charging time can be completed within 120 minutes.Description:Name: Watch1>Using 1.14 inch 135 x 240 high-definition TFT screen display2>Battery capacity: 100mAh3> DC 5V charging4>Product weight: 30 grams (wristband + earphone)6>BT-compatible version: version 5.27>Wrist strap: silicone wrist strap base PC+ABS headphone part PC+ABS8> Standby: 7 days9>Scope of application: call/listen to music/pedometer/distance measurement/calorie/heart rate/blood pressure/blood oxygen/sleep management/exercise/time display/alarm clock reminder