Smart Fitness Tracker with Step Counting, Gesture Control

Brand: He Pai Model: SmartRing Product Code: SmartRing Battery Capacity: 18MHA External Dimensions: 7#17.3mm, 8#18.1mm, 9#18.9mm, 10#19.8mm, 11#20.6mm Product Weight: 4.2~4.7g Target Audience: Universal Wearing Method: Ring Compatible Systems: Fully Compatible Additional Features: Heart Rate Drop Shipping Support: Supported After-sales Service: Store Three Guarantees Invoice: No Invoice Provided Packing List: Ring + Charging Cable + Instruction Manual Color: Black 7#, Black 8#, Black 9#, Black 10#, Black 11#, Black 12#, Black 13#, Gold 7#, Gold 8#, Gold 9#, Gold 10#, Gold 11#, Gold 12#, Gold 13#, Silver 7#, Silver 8#, Silver 9#, Silver 10#, Silver 11#, Silver 12#, Silver 13# International Size 7 8 9 10 11 12 Inner Diameter 17.4mm 18.2mm 19.0mm 19.9mm 20.7mm 21.5mm Circumference 54.4mm 56.9mm 59.5mm 62.1mm 64.6mm 67.2mm Wearing Instructions: STEP-01 : When measuring, please use a non-elastic thin string to wrap around your finger once. STEP-02 : Pull the string straight and measure its length with a ruler, then refer to the size chart above to select the appropriate size.

Shipping weight: 150 g Options: Color