Screen size: 1.3 inch color screen
Screen resolution: 160 * 80
System requirements: Android 4.4 and above, I0S 9.0 or above, support for Bluetooth 4.0
Master chip: 3431Q
Memory: 512kb
Battery capacity: 90 mAh
Standby time: about 19 days
Working time: 5 days or so
Unlock: Capacitive touch screen unlock / button to unlock
Waterproof rating: IP67
Sensor: three-axis gravity sensor

Function introduction: touch single button + time date + waterproof IP67 + step + motion + heart
Rate is + blood oxygen + blood pressure + sedentary reminder + drink reminder + smart anti-lost + smart alarm clock +
Sleep monitoring + message notification + call reminder + shake a photo + find a bracelet, etc., accessories:
Neutral packaging + Chinese and English instructions
1, APP is Han Tianxia, 2, supporting language: Chinese, English, Japanese, Russian, German, West
Ban, Turkey, France, Korea, Indonesia, Malay, Portugal, Arabia, etc.

If you are unsatisfied with your item for any reason, return it within 30 days of delivery.