{"product_id":"smart-ring-fitness-tracker-heart-rate-blood-oxygen-sleep-monitor-for-ios-android","title":"Smart Ring Fitness Tracker – Heart Rate, Blood Oxygen \u0026 Sleep Monitor for iOS \u0026 Android","description":"\u003cp\u003eStay connected to your health in style with the \u003cstrong\u003eSmart Ring Fitness Tracker\u003c\/strong\u003e. Designed for both men and women, this sleek ring monitors \u003cstrong\u003eheart rate, blood oxygen, steps, calories, and sleep quality\u003c\/strong\u003e—all from your fingertip. Perfect for fitness enthusiasts, busy professionals, or anyone who wants smart health insights in a minimalist design.\u003cbr\u003e\u003cstrong\u003eSmart Ring Bluetooth Health Monitoring Blood Oxygen Sleep Heart Rate Multi-sport Modes Waterproof IP68\u0026amp;5ATM Men Women New\u003c\/strong\u003e\u003c\/p\u003e\u003cfigure class=\"image image_resized\" style=\"width:100%;\"\u003e\u003cimg src=\"https:\/\/unucle.com\/api\/proxy-fastimage?source=https%3A%2F%2Fcdn.bettamax.com%2Fprod%2F2025-06-27%2FE0U7R5-1310sph1sizechart.png\u0026amp;width=3840\u0026amp;quality=100\" alt=\"\"\u003e\u003c\/figure\u003e\u003cp style=\"margin-left:0px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003e1. For best performance and accuracy, we recommend wearing the Ring on your index finger. If you prefer other fingers, the middle and ring fingers are also OK. Avoid fingers where the base is narrower than the knuckle.\u003cbr\u003e2. The size of rings may not be completely in line with universal standards. Please measure your finger circumference before purchasing and make sure it fits comfortably, then choose the appropriate size.\u003cbr\u003e3. How to start: Charge the Ring with the included charging cable. The heart rate light will light up to indicate successful startup. Then you can use the APP Qring to connect the Ring.\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003e\u003cstrong\u003eSpecification:\u003c\/strong\u003e\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eColour: Black, Gold (optional)\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eMain functions: step count, distance, calorie count, heart rate, blood oxygen saturation, blood pressure, sleep tracking, multi-exercise mode\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eApplication: Qring\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eSupported systems: for Android5.1 or higher, for IOS8.0 or higher\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eFlash memory: Ram 208kb Rom 512kb\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eBt: 5.0 Bluetooth low energy chip compatible with Bluetooth\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eHeart rate: Vcare VC30f\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eBattery type: Lithium-ion polymer\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eCapacity: 17mah\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eCharging mode: magnetic charging\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eWaterproof rating: 5ATM\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eCharging time: Approximately 1 hour\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eBattery life: 5-7 days, standby for 15 days\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eAppearance material: stainless steel\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eSize Diameter (MM): No.8 18.1mm\/0.71in, No.9 18.9mm\/0.74in, No.10 19.8mm\/0.77in, No.11 20.6mm\/0.80in, No.12 21.6mm\/0.84in (optional)\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eWeight: 4.4g\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003ePacking Size: 75*75*43mm\/2.93*2.93*1.68in\u003c\/p\u003e\u003cp style=\"margin-left:0px;\"\u003eGross weight: 70g\u003c\/p\u003e\u003cfigure class=\"image 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