Smart Ring Waterproof Blood Oxygen Heart Rate Sleep Monitor Fitness Ring Activity & Sleep Tracker for Men Women for Android iOS

High-concerned chemical : None Waterproof Grade : 5ATM Model Number : S1 Activity Tracked : Activity Tracker,Steps Tracker Metrics measured : Heart Rate Monitor,Sleep Monitor,Blood Oxygen Monitor Item Weight : 60.00 g Certification : ce Origin : Mainland China Brand Name : LAIMANEI