"Product Material: AMOLED screen + ABS middle frame + A-side zinc alloy
Product Process: Electroplating
Product Capacity: 400mAh
Input Current: 5V/1A
Rated Power: 1.54Wh
Product Application: Health, Sports, Leisure
Charging Time: 2.5 hour
Full Change: 10%~100%
Charging Port: Magnetic Interface
Usage time: 5-7 days
Diameter size: 43mm
Bare metal size: 50.6*42.8*12.2mm
Bare metal weight: 58g"
1 Year Warranty