Descriptions:
1. Product model: B57 smart bracelet
2. Chip: NRF52832
3. Bluetooth: BT4.0
4. Compatible system: Android 4.4 and above IOS 9.0 or above
5. Waterproof rating: IP67
6. Screen: 1.3 inch IPS color Resolution: 240*240
7. Touch: Single touch
8. Battery: 180 mAh
9. Charging: Magnetic charging
10. Charging time: about 1.5H
11. Standby: 25 days or so Working time: 7 days or so
12. Bracelet material: PC case + plastic case
13. Product size: about 48.9*34.5*11.7mm/1.92*1.35*0.46in
14. APP support languages: Ukrainian Russian German Italian Japanese French Simplified Chinese Traditional Chinese English Portuguese
15. System requirement: Android 4.4 and above for ios 9.0 or more

Features:
1. Bracelet display function: time display battery icon display date display week display standard motion function (step distance calorie) multi-sport mode (walking running cycling skipping badminton basketball) football swimming) heart rate blood pressure detection blood oxygen detection sleep time display screen brightness adjustment music control.
2. Reminder function: incoming call SMS QQ WeChat reminder (display content and name). Facebook Whatsapp Twitter Skype and other foreign social software reminders alarm clocks (three sets of alarm clocks) sedentary reminders.
3. Other functions: intelligent anti-lost remote control photography do not disturb mode raise hand to bright screen time format setting factory reset long press to reject incoming calls three clock interface selection music control (support previous song next song play/pause) weather display apple health etc.

Note:
1. after receive the watch please charging first.Because after a long period of logistics the watch has a low battery
2. Do not use the smart bracelet in sea water hot water or warm water!
3. Don't wear this device when bathing or swimming for a long time.
4.Wearable devices monitors human activities through electronic sensors and they are at the consumer electuonics level.It's normal for certain deviation.The user should treat data objectively.
5.Please do not compared to hospital equipment about reading it is NOT a medical device !please don't buy for check the health(heart problem blood pressure problem) it's not for professional use.Just can be a reference.

Packing List:
1* Bracelet
1* Instruction Manual
1* Charging Cable