Lenovo Smart Ring Multifunctional Waterproof Fitness …, Bukit Batok

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Product Features:
Heart Rate Monitoring
Blood Oxygen Monitoring
Sleep Monitoring
5ATM Waterproof
Multiple sports modes: outdoor running, outdoor cycling, outdoor walking, skipping rope, mountaineering, yoga, golf, dance
Remote Photograph
Lightweight and comfortable
Extended Battery Life: When fully charged, stand by time is 5 to 7 days
Activity Tracker: Heart Rate, Consumption, Distance and Steps
Color: Black, Gold
Charging Time: Approx 2 Hours to full charge
Inner ring diameter: 
Size 7 - 17.3mm
Size 8 - 18.1mm
Size 9 - 18.9mm
Size 10 - 19.8mm
Size 11 - 20.6mm
Size 12 - 21.4mm
Size 13 - 22.2mm
Product Size (Inner Circumference):
Size 7 - 54.3mm
Size 8 - 56.9mm
Size 9 - 59.5mm
Size 10 - 62.1mm
Size 11 - 64.6mm
Size 12 - 67.2mm
Size 13 - 69.7mm
Material : Stainless + epoxy
Charging: Magnetic Charging Cable
Bluetooth Enabled
APP: LenSmart Life
Language: English
Compatible with Android & IOS
⚠️For syncing data to the LenSmart Life App, the distance between the smart ring and phone must be within 5 meters to maintain connection. Do take note that during swimming, the connection will break due to the distance inbetween your phone and the smart ring.
Warranty: 1 Year Local Carry-In Warranty (Please chat with seller for warranty claim)