{"product_id":"ceramic-nfc-smart-ring-ip68-health-sleep-tracking-access-control","title":"IP68 Ceramic NFC Smart Ring – Health, Sleep \u0026 Access Control","description":"\n\u003cp\u003eMeet the \u003cstrong\u003eLUCKING DOOR SR01-NFC Ceramic NFC Smart Ring\u003c\/strong\u003e — the ultra-slim, featherlight wearable that blends minimalist jewelry with powerful everyday intelligence. At just 4 grams, this polished black ceramic ring is virtually unnoticeable on your finger while working around the clock to keep you informed, connected, and in control.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003e*This product is a wearable consumer electronics device. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. Health-tracking features are intended for general wellness purposes only.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarely-There Weight:\u003c\/strong\u003e At only 4 grams, you'll forget you're even wearing it — all day and all night.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMirror-Polished Ceramic Shell:\u003c\/strong\u003e Scratch-resistant, wear-resistant, and drop-resistant with a sophisticated low-key luster that elevates any look.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP68 Waterproof (50 m rated):\u003c\/strong\u003e Wash your hands, swim laps, snorkel, or get caught in the rain — no need to take it off.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Charging Anxiety:\u003c\/strong\u003e Passive NFC chip requires zero battery power for access-control functions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eComprehensive Wellness Tracking\u003c\/h2\u003e\n\u003cp\u003eThe SR01-NFC houses a \u003cstrong\u003emulti-sensor fusion system\u003c\/strong\u003e and 3D integrated sensing center that continuously captures key body signals:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e🫀 \u003cstrong\u003eHeart Rate Monitoring:\u003c\/strong\u003e Static heart rate detection accuracy above 95%, with real-time readings and historical trend views.\u003c\/li\u003e\n  \u003cli\u003e💉 \u003cstrong\u003eBlood Oxygen Saturation (SpO₂):\u003c\/strong\u003e On-demand and continuous readings with historical data logging.\u003c\/li\u003e\n  \u003cli\u003e📈 \u003cstrong\u003eBlood Glucose \u0026amp; Blood Pressure Trend Tracking:\u003c\/strong\u003e Dynamic monitoring technology keeps you aware of fluctuating trends throughout the day.\u003c\/li\u003e\n  \u003cli\u003e🌙 \u003cstrong\u003eFull-Cycle Sleep Tracking:\u003c\/strong\u003e Automatically distinguishes deep sleep, light sleep, and wakefulness periods; generates visual sleep reports to help you optimize your rest schedule.\u003c\/li\u003e\n  \u003cli\u003e🌡️ \u003cstrong\u003eSkin Temperature Monitoring:\u003c\/strong\u003e Continuous temperature curve recording for at-a-glance trend awareness.\u003c\/li\u003e\n  \u003cli\u003e🧘 \u003cstrong\u003eStress Level Analysis:\u003c\/strong\u003e Evaluates stress based on heart rate variability (HRV) and provides timely notifications when elevated tension is detected.\u003c\/li\u003e\n  \u003cli\u003e🌸 \u003cstrong\u003eWomen's Cycle Management:\u003c\/strong\u003e Intelligent prediction of menstrual and ovulation periods with no manual logging required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eNFC Access Control — One Tap Does It All\u003c\/h2\u003e\n\u003cp\u003eThe built-in \u003cstrong\u003eNFC module\u003c\/strong\u003e lets you unlock doors, elevators, and parking gates with a simple wave of your hand. Say goodbye to fumbling for keycards or fobs — your ring \u003cem\u003eis\u003c\/em\u003e your key.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with standard NFC access-control systems\u003c\/li\u003e\n  \u003cli\u003eWorks with building entry, elevator panels, and parking barriers\u003c\/li\u003e\n  \u003cli\u003ePassive chip — always ready, no battery needed for NFC functions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSports \u0026amp; Activity Tracking\u003c\/h2\u003e\n\u003cp\u003eTrack every move with automatic sport detection and dedicated modes:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStep counting, active duration \u0026amp; calorie estimation\u003c\/li\u003e\n  \u003cli\u003eSupported modes: Walking, Running, Cycling, Hiking, Golf, and more\u003c\/li\u003e\n  \u003cli\u003eData syncs directly to the companion SmartLife app for detailed insights\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSmart Interaction Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e📷 \u003cstrong\u003eRemote Camera Shutter:\u003c\/strong\u003e Tap or shake the ring to trigger your phone's camera — perfect for hands-free group shots.\u003c\/li\u003e\n  \u003cli\u003e🎞️ \u003cstrong\u003eShort Video Control:\u003c\/strong\u003e Quickly swipe through short-form video content without touching your phone screen.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSizing Guide\u003c\/h2\u003e\n\u003cp\u003eAvailable in \u003cstrong\u003e6 sizes (US #7 – #12)\u003c\/strong\u003e with inner diameters ranging from \u003cstrong\u003e17.2 mm to 21.5 mm\u003c\/strong\u003e. To find your perfect fit, wrap a thin non-elastic thread around the base of your finger, mark where it overlaps, measure the length in millimeters, and compare to the size chart below:\u003c\/p\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background:#f4f4f4;\"\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:8px;\"\u003eUS Size\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:8px;\"\u003eInner Diameter (mm)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e#7\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e17.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e#8\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e18.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e#9\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e19.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e#10\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e19.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e#11\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e20.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e#12\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px;text-align:center;\"\u003e21.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SR01-NFC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium Black Ceramic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~4 g\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWaterproof Rating:\u003c\/strong\u003e IP68 (up to 50 m)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e NFC + Bluetooth (via SmartLife app)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSizes Available:\u003c\/strong\u003e US #7 – #12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible App:\u003c\/strong\u003e SmartLife\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concern Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp\u003eFor general guidance on understanding wearable wellness tracking data, visit the CDC Physical Activity Resources.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Smart_ring\" target=\"_blank\" rel=\"noopener\"\u003eSmart ring\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: Does the NFC Smart Ring require charging?\u003c\/h4\u003e\n\u003cp\u003eA: The passive NFC chip used for door access control requires \u003cstrong\u003eno battery or charging\u003c\/strong\u003e — it draws power from the reader when tapped. Wellness-tracking sensors that record heart rate, SpO₂, sleep, and other body signals do use onboard power; refer to the SmartLife app for battery status and charging instructions specific to your model.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the SR01-NFC Smart Ring compatible with all NFC access-control systems?\u003c\/h4\u003e\n\u003cp\u003eA: The ring is compatible with most standard NFC-based access-control systems, including building door readers, elevator panels, and parking lot barriers. We recommend confirming with your building manager that your system supports standard NFC (13.56 MHz) cards before ordering.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I wear the ceramic NFC Smart Ring while swimming?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The ring carries an \u003cstrong\u003eIP68 waterproof rating\u003c\/strong\u003e and is tested to withstand submersion up to 50 meters, making it suitable for daily hand-washing, rain, pool swimming, and snorkeling. Avoid prolonged exposure to high-pressure water jets or hot springs above rated limits.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I choose the right ring size?\u003c\/h4\u003e\n\u003cp\u003eA: Wrap a thin, non-elastic thread around the base of the finger you'd like to wear the ring on. Mark where the ends meet, lay the thread flat, and measure the length in millimeters. Match that measurement to the inner diameter column in the sizing table above (sizes US #7–#12, from 17.2 mm to 21.5 mm) to find your ideal fit.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Which smartphone app does the smart ring use?\u003c\/h4\u003e\n\u003cp\u003eA: The LUCKING DOOR SR01-NFC pairs with the \u003cstrong\u003eSmartLife app\u003c\/strong\u003e, available for both iOS and Android. The app displays your wellness trends, sleep reports, activity history, and allows you to configure remote camera and video controls.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does the NFC Smart Ring require charging?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The passive NFC chip used for door access control requires no battery or charging — it draws power from the reader when tapped. Wellness-tracking sensors that record heart rate, SpO₂, sleep, and other body signals do use onboard power; refer to the SmartLife app for battery status and charging instructions specific to your model.\"}}, {\"@type\": \"Question\", \"name\": \"Is the SR01-NFC Smart Ring compatible with all NFC access-control systems?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ring is compatible with most standard NFC-based access-control systems, including building door readers, elevator panels, and parking lot barriers. We recommend confirming with your building manager that your system supports standard NFC (13.56 MHz) cards before ordering.\"}}, {\"@type\": \"Question\", \"name\": \"Can I wear the ceramic NFC Smart Ring while swimming?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The ring carries an IP68 waterproof rating and is tested to withstand submersion up to 50 meters, making it suitable for daily hand-washing, rain, pool swimming, and snorkeling. Avoid prolonged exposure to high-pressure water jets or hot springs above rated limits.\"}}, {\"@type\": \"Question\", \"name\": \"How do I choose the right ring size?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Wrap a thin, non-elastic thread around the base of the finger you'd like to wear the ring on. Mark where the ends meet, lay the thread flat, and measure the length in millimeters. Match that measurement to the inner diameter column in the sizing table above (sizes US #7–#12, from 17.2 mm to 21.5 mm) to find your ideal fit.\"}}, {\"@type\": \"Question\", \"name\": \"Which smartphone app does the smart ring use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The LUCKING DOOR SR01-NFC pairs with the SmartLife app, available for both iOS and Android. 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