Smart Ring Health Rings with Heart Rate Monitor Calorie Counter Long Battery Life Casual Smart Rings for Men Women Compatible with iOS Android Phones Gold Ring

MULTIFUNCTIONS:- Pedometer:StepsCaloriesDistance- Heart Rate Monitor- Stress Assessment- Sport Modes- Sleep Tracker- Long Battery LifeHARDWARE:Bluetooth:5.0Charging Type:Magnetic ChargingFull Charge Time:About 1 HourRing Battery:15mAhCharging Cable Battery:200mAhAPP:QRingStandby Time:One full charge gives you(5-7 days of working time)iOS 8.0 or aboveAndroid 5.1 or aboveRing Material:Aluminium AlloyPackaging Accessories:Smart Ring*1Charging Line*1ManualCharing Cable*1RING SIZE:US8 (Ring inner diameter:18.3mm/0.72"Ring circumference:57.5mm/2.26")US9 (Ring inner diameter:19.1mm/0.75"Ring circumference:60mm/2.36")US10 (Ring inner diameter:20mm/0.77"Ring circumference:62.8mm/2.47")US11 (Ring inner diameter:20.8mm/0.81"Ring circumference:65.4mm/2.57")US12 (Ring inner diameter:21.6mm/0.85"Ring circumference:67.8mm/2.67")Weight:4.4g- IP67 Waterproof- DO NOT suitable for hot water bathingdivingswimmingwater-related work.Any questionsplease kindly contact uswe would always offer best solution to you.