C20 1.71 inch TFT HD Screen Smart Watch, Support Heart Rate Monitoring/Blood Oxygen Monitoring(Black)

Heart rate, blood pressure, blood oxygen, breathing training, sleep monitoring (sleep time, sleep quality);
Pedometer, exercise distance, calorie consumption;
More than 110 sports modes;
Mobile APP information notification, Facebook, Twitter, LinkedIn, WhatsApp, LINE, Instagram, Skype, Gmail, KaKaoTalk, etc.;
Calculator, weather, stopwatch, countdown, sedentary reminder, alarm clock reminder, drink water reminder, find mobile phone, reject calls, shake to take pictures, menstrual period reminder, etc.;

Hardware parameters of smart watch:
1.85 inch IPS resolution 240X286;
Metal middle frame + plastic bottom case;
Full touch screen plus 2 buttons; strap width 22MM
Battery capacity: 400mAh;
The standby time is about 30 days, and the working time is about 7-10 days;
Waterproof: IP68;
Bt version: 5.0
Compatible mobile phones: Android 5.0 and above, IOS