{"product_id":"r20-ceramic-smart-ring-2025-nfc-heart-rate-sleep-tracker-ip68-1","title":"R20 Ceramic Smart Ring 2025 | NFC, Heart Rate \u0026 Sleep Tracker","description":"\n\u003ch2\u003eR20 Ceramic Smart Ring 2025 — Ultra-Thin Health \u0026amp; Fitness Tracker for Men \u0026amp; Women\u003c\/h2\u003e\n\u003cp\u003eMeet the \u003cstrong\u003eR20 Ceramic Smart Ring\u003c\/strong\u003e — a sleek, featherlight wearable (just 5g!) that keeps your wellness stats and daily activity at your fingertips, literally. Crafted from premium ceramic and engineered for everyday life, this ultra-thin smart ring delivers continuous monitoring of your heart rate, blood oxygen levels, sleep quality, and activity data — all without the bulk of a traditional smartwatch.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're hitting the gym, winding down for the night, or simply going about your day, the R20 works quietly in the background, syncing rich health insights to your smartphone app so you always know how your body is doing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e✦ Key Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComprehensive Health Monitoring:\u003c\/strong\u003e Tracks heart rate, blood oxygen (SpO₂), and blood pressure in real time with a high-accuracy Goodix GH3018 sensor (static heart rate accuracy \u0026gt;98%).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced Sleep Insights:\u003c\/strong\u003e Precise sleep algorithm automatically detects sleep stages and provides personalized sleep coaching reminders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8 Sports Modes:\u003c\/strong\u003e Running, cycling, skipping, hiking, mountaineering, yoga, golf, and dancing — with accurate step count, distance, and calorie data.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNFC Support:\u003c\/strong\u003e Convenient NFC functionality for access control and quick interactions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP68 Waterproof (5ATM):\u003c\/strong\u003e Fully sealed against water — wear it in the pool, the shower, or the rain without a second thought.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Long Battery Life:\u003c\/strong\u003e Up to 3–5 days of active use or ~45 days standby on a single charge; fully recharged in just 30 minutes via included charging case.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemote Camera Control:\u003c\/strong\u003e Use a shake gesture in the companion app to snap photos hands-free.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFamily Care:\u003c\/strong\u003e Add friends\/family within the app to stay connected and monitor loved ones' wellness trends.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad Compatibility:\u003c\/strong\u003e Works with Android 5.1+ and iOS 8.0+.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE \u0026amp; FCC Certified\u003c\/strong\u003e for quality assurance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e✦ Technical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCase Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCeramic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8, 9, 10, 11, 12\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15mAh (ring) \/ 155mAh (charging case)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~3–5 days\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandby Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~45 days\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~0.5 Hours\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeart Rate Sensor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGoodix GH3018\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eG-Sensor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSC7A20H\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWaterproof Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP68 \/ 5ATM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAndroid 5.1+ \/ iOS 8.0+\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE, FCC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e✦ The Perfect Gift\u003c\/h3\u003e\n\u003cp\u003eBeautifully minimal and gender-neutral, the R20 Ceramic Smart Ring makes a thoughtful gift for birthdays, weddings, anniversaries, or any occasion. Its jewelry-like appearance means it looks as good as it performs.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e✦ Getting Started\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eUpon receiving your ring, charge it using the included charging case for at least 2 hours before first use.\u003c\/li\u003e\n  \u003cli\u003eScan the QR code in the included manual to download the companion app.\u003c\/li\u003e\n  \u003cli\u003ePair via Bluetooth, set your profile, and start tracking immediately.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e✦ Related Products You May Love\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-poster-inspirational-quote\"\u003e\"1% Better Every Day\" Motivational Canvas Poster | Wall Art\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/hey-you-got-this-motivational-canvas-wall-art-print\"\u003e\"Hey, You Got This\" Motivational Canvas Wall Art Print\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003e✦ Learn More About Wearable Health Tracking\u003c\/h3\u003e\n\u003cp\u003eWant to understand how wearable devices monitor wellness metrics like heart rate and blood oxygen? Visit the FDA's Digital Health Center of Excellence for trusted information on wearable health technology.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: Is the R20 Ceramic Smart Ring compatible with both iPhone and Android devices?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The R20 smart ring is compatible with smartphones running Android 5.1 or higher and iOS 8.0 or higher. Simply scan the QR code in the manual to download the companion app and connect via Bluetooth.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How waterproof is the R20 smart ring — can I wear it swimming?\u003c\/h4\u003e\n\u003cp\u003eA: The R20 carries an IP68 waterproof rating and 5ATM water resistance, making it suitable for swimming, showering, and general water exposure. It is designed to withstand submersion in water, so daily wear in wet conditions is no problem.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How long does the battery last and how do I charge it?\u003c\/h4\u003e\n\u003cp\u003eA: The ring offers approximately 3–5 days of active working time and up to 45 days of standby time. It charges in just 30 minutes using the included magnetic charging case, which itself holds a 155mAh battery for on-the-go top-ups.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What size smart ring should I choose?\u003c\/h4\u003e\n\u003cp\u003eA: The R20 is available in sizes 8, 9, 10, 11, and 12 (standard US ring sizes). We recommend measuring your finger circumference or visiting a local jeweler to determine your exact ring size before purchasing for the best fit and most accurate sensor readings.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the R20 ring really support NFC access control?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, the R20 Smart Ring includes NFC functionality, enabling it to interact with NFC-enabled access control systems and compatible devices. This feature is a highlight of the 2025 model and makes it a versatile everyday carry for both wellness and convenience.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is the R20 Ceramic Smart Ring compatible with both iPhone and Android devices?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The R20 smart ring is compatible with smartphones running Android 5.1 or higher and iOS 8.0 or higher. 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