1. is the heart rate/blood pressure/blood oxygen monitor accurate? why i measured an object can still get a value? it's fake? It's the phenomenon that all smart watches will have. all measurements depend on sensors and algorithms and have certain errors. Smart watches measure heart rate primarily through photosensitive sensors, which receive light reflected from the skin of the arm and convert it into heart rate algorithmically. As well as iwatch, huawei watch and xiao mi band. How do smart watches measure the heartbeat on your wrist? https://www.quora.com/How-do-Smart-Watches-measure-the-heart-beat-on-the-wrist about ppg: https://en.wikipedia.org/wiki/Photoplethysmogram
2. Can heart disease patients use their measured value as a reference? We do not recommend it because currently the measured value of watches on the market cannot meet the medical standard and can only be used as a daily health reference, not a medical reference. 3. is it waterproof? can i use it for showering or swimming? It is life proof water dwaterproof, please don't use it when taking a shower or swimming 4. what app is wearfit2.0 5.how to change the weather of my device? Please sync your device with your phone via bluetooth to calibrate the time.
Screen size 1.3 inch screen resolution 240*240 ips factory (customer supply) battery curve/specification customer source battery capacity/mah type hs6620 ordinary heart rate sc7r30 sram 128kb flash 512kb flash 128m motor shrapnel built in BT antenna magnetic charge power supply touch full android system version above 4.4 ios system version above 8.4
Multi-watchface time support support step support calories support distance support sport mode support raise hand to light support sleep monitoring support run track support call reminder support support sedentary reminder support alarm reminder support support take a picture shaking support find Multi-Watchface Bracelet Support Multi-Language Watchface Support: Chinese, English, Russian, Spanish, Japanese Real-Time Measurement Support Wechat Heart Rate Support Long-lasting Heart Rate Support Blood Pressure Support Blood Oxygen Support ECG Not Support thermometer not weekly support healthy support bluetooth support language support wearfit2.0 application charging method dwaterproof magnetic charge ota upgrade support IP68