{"product_id":"colmi-smart-ring-r02-rose-gold-size-8-health-tracker-with-heart-rate-spo2-and-charging-case","title":"COLMI Smart Ring R02 — Rose Gold (Size 8) Health Tracker with Heart Rate \u0026 SpO2 and Charging Case","description":"\u003cp\u003e\u003cstrong\u003eThe COLMI R02 Smart Ring is a compact wearable ring that tracks heart rate, blood oxygen, sleep patterns and daily activity, and charges in a portable case — no subscription required.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe COLMI R02 blends jewelry-style design with health and activity sensors to give discreet, 24\/7 monitoring for men and women. Designed to sit comfortably on your finger, the R02 reports heart rate, SpO2 and sleep trends, stores daily activity data, and connects to your phone for remote camera control and easy syncing. A small charging case keeps the ring powered on the go, and there are no recurring subscription fees to access the core features.\u003c\/p\u003e\n\n\u003ch3\u003eHow accurate is the COLMI R02 for heart rate and blood-oxygen readings?\u003c\/h3\u003e\n\u003cp\u003eThe R02 uses optical sensors to estimate heart rate and peripheral blood oxygen. It’s designed for day-to-day wellness monitoring rather than clinical diagnosis, helping you spot trends and irregularities over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e24\/7 heart rate sampling with selectable monitoring modes (basic, balanced, enhanced).\u003c\/li\u003e\n  \u003cli\u003eSpO2 measurements for quick oxygen-level checks during rest or activity.\u003c\/li\u003e\n  \u003cli\u003eAlgorithms filter out stationary hand movements to reduce false readings.\u003c\/li\u003e\n  \u003cli\u003eResults sync with the companion app for trend visualization.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does the battery last and how does the charging case work?\u003c\/h3\u003e\n\u003cp\u003eBattery life depends on your monitoring frequency. Use the ring in Basic Mode for longer endurance or Enhanced Mode for continuous tracking at the cost of more frequent charging.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBasic Mode: about 4–5 days (steps and basic sleep tracking).\u003c\/li\u003e\n  \u003cli\u003eBalanced Mode: about 3–4 days (heart rate every 60 minutes).\u003c\/li\u003e\n  \u003cli\u003eEnhanced Mode: about 2–3 days (real-time heart rate monitoring).\u003c\/li\u003e\n  \u003cli\u003ePortable charging case provides convenient on-the-go recharges; includes charging cable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the ring fit me and how should I pick a size?\u003c\/h3\u003e\n\u003cp\u003eFit matters for comfort and accurate sensor contact. COLMI strongly recommends using the sizing kit or measuring your finger against the size chart before ordering to avoid returns.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePurchase the COLMI sizing kit or follow the provided size chart for exact measurements.\u003c\/li\u003e\n  \u003cli\u003eA snug but not tight fit improves sensor contact and data quality.\u003c\/li\u003e\n  \u003cli\u003eIf you’re between sizes, choose the larger size for comfort during longer wear.\u003c\/li\u003e\n  \u003cli\u003eRing includes a user manual to guide setup and sizing tips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat additional features and accessories come with the R02?\u003c\/h3\u003e\n\u003cp\u003eAside from health tracking, the R02 offers convenience tools and reliable after-sales support. The package contains the ring and essentials to get started immediately.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemote camera control to take photos from your phone with a finger gesture.\u003c\/li\u003e\n  \u003cli\u003eNighttime-focused sleep analytics calibrated to record continuous night rest.\u003c\/li\u003e\n  \u003cli\u003ePackage contents: 1 smart ring, 1 portable charging case, 1 charging cable, 1 instruction manual.\u003c\/li\u003e\n  \u003cli\u003eNo app subscription fee — core features available without recurring payments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The COLMI R02 is aimed at style-conscious users who want unobtrusive, daily wellness and activity insights without a subscription. It suits people who prefer a jewelry-like wearable instead of a wristband, travelers who value a compact charging case, and anyone tracking general trends in heart rate, SpO2 and sleep. If you need medical-grade measurements, consult a healthcare professional; for everyday monitoring and lifestyle metrics, the R02 is a practical, fashion-forward choice.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the COLMI R02 require a subscription?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The COLMI R02 offers core health and activity features without any subscription fee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I choose the correct ring size?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use the COLMI sizing kit or the size chart before ordering to ensure a comfortable and accurate fit.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"COLMI","offers":[{"title":"Default Title","offer_id":48413656514717,"sku":"B0FKSPJ1F8","price":78.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/colmi-r02-front-view-rose-gold_1c6cbd7b-2260-4ee5-8bc8-ed47f07d6bbd.jpg?v=1781276465","url":"https:\/\/nexoltic.com\/products\/colmi-smart-ring-r02-rose-gold-size-8-health-tracker-with-heart-rate-spo2-and-charging-case","provider":"Nexoltic","version":"1.0","type":"link"}