Ceramic Multifunctional Waterproof Photography Blood Oxygen Heart Rate Sleep Health Monitoring Smart Ring

Product information:
Color: Ceramic White No. 8 (inner diameter mm), ceramic white No. 9 (inner diameter mm), ceramic white No. 10 (inner diameter mm), ceramic white No. 12 (inner diameter mm), Blue No. 8 (inner diameter mm), Blue No. 9 (inner diameter mm), Blue No. 10 (inner diameter mm), Blue No. 12 (inner diameter mm), gold number 8 (inner diameter mm), gold number 9 (inner diameter mm), gold number 10 (inner diameter mm), gold number 12 (inner diameter mm), black No. 8 (inner diameter mm), Black No. 9 (inner diameter mm), Black No. 10 (inner diameter mm), Black No. 12 (inner diameter mm)
Applicable people: general
Battery capacity: 17.5mAh
Additional features: take photos
Wearing method: Finger