Main chipset: Goodix GR5515
Secondary chipset: JieLi AC6963A
HR sencor: HS3300
G-sencor: SC7A20
Screen: 1.69 inch
Screen resolution: 240*280 resolution.
Battery Capatcity: 200mAh
Battery life: 3~7days
Waterproof level: IP67 Waterproof
APP: Da Fit
Suitable for mobile phones with Android 4.4 or higher, or iOS 9.0 or higher.

P8 Max Functions

 Health: 24/7 Heart Rate monitor, Blood Pressure, Blood Oxygen, Sleep tracker, Breathe, Drink water reminder, Reminder to move, Women's menstrual period reminder, Support health APP.

 Life: Bluetooth Answer Call, Bluetooth Dial Call, Messages Reminder, Alarm clock, Weather, Music remote, Camera remote, Flashlight, Find phone, Dynamic watch face, watch face market (100 watch faces), custom watch faces(you can set the picture you like as the watch face), Set the screen off time, Do not disturb mode.

 Sports: All-Day Activity Tracking( Steps, calories, distance ), IP67 waterproof, 7 Exercise Modes, Stopwatch, Sports Data Report.

With a battery life up to 3~7 days, keep the inspiration coming day and night.