Spec:
Item Type: Smart Ring
Material: Stainless steel
Battery Type: Lithium ion Battery
Battery Capacity: 17.5mAh (with built in battery)
Waterproof Level: IP68
Ring Thickness: Approx. 2.8mm / 0.1in
Charging Method: Magnetic Charging
Working Temperature: 0-50°C
Storage Capacity: 128kb ROM + 96kb RAM
Package List:
1 x Smart Ring
1 x USB Cable
1 x User Manual