B57 1 3 inch IPS kleurenscherm Smart Watch IP67 waterdicht ondersteuning bericht herinnering/hartslagmeter/sedentaire herinnering/bloeddruk monitoring/slaapbewaking (wit)

Descriptions:1. Product model: B57 smart bracelet2. Chip: NRF528323. Bluetooth: BT4.04. Compatible system: Android 4.4 and above IOS 9.0 or above5. Waterproof rating: IP676. Screen: 1.3 inch IPS color Resolution: 240*2407. Touch: Single touch8. Battery: 180 mAh9. Charging: Magnetic charging10. Charging time: about 1.5H11. Standby: 25 days or so Working time: 7 days or so12. Bracelet material: PC case + plastic case13. Product size: about 48.9*34.5*11.7mm/1.92*1.35*0.46in14. 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 moreFeatures: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 detectio