Fitness Tracker Ring, Smart Ring Health Tracker with Heart Rate, Blood Oxygen, Sleep Monitor, Calories, No Subscription Fee, IP68 Waterproof for iPhone & Android (Black, #11)

About this item

• Titanium Alloy Material: The smart ring is made of lightweight, skin-friendly and high-strength titanium, ensuring excellent workmanship and durability
• Smart Ring Sizing Kit: Search ASIN: B0CLHW28BG to purchase our sizing kit, designed to help you determine the correct size for non-standard hand measurements. This will help you make a more informed choice when ordering
• Activity Fitness Tracker: The fitness tracking ring records exercise data and automatically monitors your heart rate and HRV every half hour, or you can do it manually via the app. Blood oxygen saturation and stress tests are measured manually via the app
• Sleep Tracker: The ring is your ideal health companion, our rings for men and women are both excellent choices
• No Subscription Fees: Smart Ring health tracker data can be easily viewed via a mobile app without subscription fees. Smart Ring supports Android 5.0 and iOS 10.0 and above systems
• 【Warm Tips】Please determine the appropriate wearing size before purchasing. You can buy a ring sizer to determine the size, or use a long paper strip or a small string to wrap around the finger to be worn, and determine the size by measuring the intersection of the marks