1. Material: ABS+PC
2. Screen size: 1.1 inches
3. Appearance size: 26x2.3x1.1 cm
4. Interface: USB 2.0
5. Functions: 24-hour heart rate monitoring, sleep monitoring, APP message push, calorie consumption calculation, call/sedentary reminder, exercise mileage record, etc.
6. Battery capacity: 180MAH polymer battery
7. IP67 waterproof and dustproof
8. With NFC function, used for access control unlocking, subway card swiping, bus card, etc.
9. Dimensions: 43x36x12.5 mm
10. Weight: 27.5 grams