Smart Ring Blood Sugar Testing Sleep Health Monitoring Ring

Product information: Color classification: Obsidian Black, space silver, rose gold Material: Standard version is 316 stainless steel, high-end version can choose pure titanium Size: width 8.0mm, thinness 2 85/2.9mm OTA support: supports Bluetooth OTA Battery: rechargeable lithium polymer battery 14.521.5mAh (depending on ring shank size) Waterproof grade: 5ATM Data storage time: 15 days Packing list: 1* Ring Product Image: