{"product_id":"smart-ring-vo2-max-bluetooth-fitness-tracker-male-ios-android-sleep-health-monitor","title":"Smart Ring VO2 Max Bluetooth Fitness Tracker, Male Ios Android Sleep Health Monitor","description":"\u003cdiv\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cspan\u003eHello, welcome to our store. If you have any questions or confusion about this product,please contact our customer service promptly.\u003cbr\u003e I may not reply instantly due to time difference, but I will get back to you as soon as possible. Wish you all the best.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan\u003e\u003cstrong\u003eProduct parameters\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003e\u003cspan\u003e\u003cstrong\u003eBasic Parameters:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e\u003cbr\u003e Ring size inner diameter: size 7 17.5mm; size 8 18.3mm; size 9 19.1mm; size 10 20mm; size 11 20.8mm; size 12 21.6mm; size 13 22.4mm.\u003cbr\u003e Outer surface material: stainless steel\u003cbr\u003e Main material: epoxy resin\u003cbr\u003e Version number: MOY.FZE201.01 (wired charging)\u003cbr\u003e Main control platform: Zhongke Intelligence - Main Control-AB2026B3\u003cbr\u003e Main control parameters: maximum frequency of 120M, RAM of 64KB, BLE of 5.2\u003cbr\u003e Memory: FLASH built-in 4Mb\u003cbr\u003e Heart rate sensor: Tianyi Hexin heart rate sensor 3918\u003cbr\u003e GSENSOR: Silan Micro 3-axis step sensor SC7A20H\u003cbr\u003e Product weight: approximately 5.0 grams\u003cbr\u003e Battery capacity: Ring 20mAh\u003cbr\u003e Battery usage duration: 3 to 5 days, depending on the frequency of use\u003cbr\u003e Charging method: Use the provided charging cable (USB rated 5V)\u003cbr\u003e Connection method: Low power Bluetooth 5.0\u003cbr\u003e Software Program Scalability Software Program Compatibility: Updating App Store, Google Play through Software Applications\u003cbr\u003e Waterproof level: IP68\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e \u003cp\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sb61ad1d81aa24c788fd11f8ed21d45aaw.jpg\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Se07395bbdd6441fa992056cea578e9cd8.jpg\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sbf7ba57d02a3493d85d9b28e0ca13ee4Y.jpg?width=800\u0026amp;height=800\u0026amp;hash=1600\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S0901e44000284087af0ce18867380020r.jpg\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S6457638c3d754af3bcd05ad31efafd9dK.jpg?width=800\u0026amp;height=1014\u0026amp;hash=1814\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Scd1ebcb0547a42c89aa0828630900fcaY.jpg?width=800\u0026amp;height=1196\u0026amp;hash=1996\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S8ccc2ef64ba04a9a9b204497cf07e443E.jpg\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S311a8c8768ac4702b36f0516c13b1da5X.jpg?width=800\u0026amp;height=1112\u0026amp;hash=1912\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sd0f9107cd4574d0b96aa1e4378eb4e69x.jpg?width=800\u0026amp;height=1069\u0026amp;hash=1869\"\u003e\u003cimg 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