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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
Battery Capacity（mAh）: 4000
YFN Chain Length: 18+2 Inches
all colors and sizes
Function:: Fashion/ Decoration/ Trendy/ Charming
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Smart Ring Heart Rate Blood Oxygen Health Sleep Monitoring Color:Blue with warehouse Battery Capacity（mAh）: 4000Product Details Battery capacity: 50mA Appearance dimensions: # 8, # 9, # 10, # 12 Wearing method: Finger wearing Additional features: heart rate, blood oxygen, blood pressure, heart rate variability, sleep monitoring and tracking, sleep temperature, sleep analysis Compatible platform: fully compatible Product Details Ring+charging cable+manual+exquisite packaging * 1 set
