Product information:
Color: Black 7# (charging case), Black 8# (charging case), Black 9# (charging case), Black 10# (charging case), Black 11# (charging case), Black 12# (charging case), Black 13# (charging case)
Battery Capacity: 15-20 mAh
Additional Features: Heart rate, blood oxygen, sleep tracking, fitness tracking, sleep monitoring
Wearing Method: Finger-worn

Packing list:
Smart ring * 1+magnetic charging cable * 1+instruction manual * 1+charging compartment * 1
Product Image: