{"product_id":"colmi-r02-smart-ring-health-tracker-gold-size-8-heart-rate-spo2-monitoring-with-charging-case","title":"COLMI R02 Smart Ring Health Tracker Gold (Size 8) — Heart Rate \u0026 SpO2 Monitoring with Charging Case","description":"\u003cp\u003e\u003cstrong\u003eThe COLMI R02 is a compact smart ring that tracks heart rate, blood oxygen, sleep patterns and daily activity, and comes with a portable charging case—no subscription required.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe COLMI R02 smart ring blends jewelry-like styling with wearable health and activity tracking. Designed for both men and women, the R02 delivers continuous heart-rate monitoring, nocturnal sleep analysis and blood-oxygen readings inside a low-profile metal band. It syncs data to your phone without monthly fees and includes a small charging case to keep the ring powered on the go.\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 ring uses compact optical sensors to capture pulse and SpO2 trends throughout the day and night. While it provides helpful trend data and alerts to changes, it should not replace professional medical devices. Data quality improves when the ring fits snugly and is worn consistently.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e24\/7 heart-rate monitoring with selectable frequency modes.\u003c\/li\u003e\n  \u003cli\u003eBlood-oxygen (SpO2) spot checks and trend logging.\u003c\/li\u003e\n  \u003cli\u003eBest results obtained when ring size matches the finger closely.\u003c\/li\u003e\n  \u003cli\u003eNighttime algorithms tuned for cleaner sleep-cycle readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat battery life can I expect and how does the charging case work?\u003c\/h3\u003e\n\u003cp\u003eBattery length varies by monitoring intensity. In Basic Mode (limited sensors) you can expect around 4–5 days, while real-time monitoring reduces runtime to 2–3 days. The included pocket-sized charging case stores and recharges the ring so you can charge between outings without carrying cords.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBasic Mode: ~4–5 days (steps and basic sleep).\u003c\/li\u003e\n  \u003cli\u003eBalanced Mode: ~3–4 days with hourly heart-rate syncs.\u003c\/li\u003e\n  \u003cli\u003eEnhanced Mode: ~2–3 days with continuous heart-rate monitoring.\u003c\/li\u003e\n  \u003cli\u003eCharging case for convenient on-the-go recharges and storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich features help with everyday use and convenience?\u003c\/h3\u003e\n\u003cp\u003eBeyond health metrics, the R02 offers practical utilities for daily life. Photo control lets you use the ring as a remote shutter for your phone, and automatic activity recording captures steps while filtering out hand-only movements for cleaner step totals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemote camera control for selfies and group shots.\u003c\/li\u003e\n  \u003cli\u003eActivity tracking that filters stationary hand motions.\u003c\/li\u003e\n  \u003cli\u003eSleek gold finish that works as everyday jewelry.\u003c\/li\u003e\n  \u003cli\u003eNo subscription fees—basic app features are included free.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this ring for? The COLMI R02 suits anyone seeking a discreet wearable that combines simple health trend tracking with jewelry-style aesthetics—ideal for active people who want hands-free convenience, travelers who value a portable charging case, and users who prefer devices without ongoing subscription costs. Remember to order a sizing kit or measure carefully for the best fit, as accurate sensor readings depend on correct ring size. For support or setup questions, COLMI provides after-sales help and a full accessory set including the ring, charging case, cable and manual.\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: Do I need a subscription to use the COLMI R02?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The COLMI R02 works without any app subscription; core tracking features are available immediately.\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: Order COLMI's sizing kit or measure your finger against the size chart for a snug fit to improve sensor accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"COLMI","offers":[{"title":"Default Title","offer_id":48444419899549,"sku":"B0GHMWKDRV","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-gold.jpg?v=1781543312","url":"https:\/\/nexoltic.com\/products\/colmi-r02-smart-ring-health-tracker-gold-size-8-heart-rate-spo2-monitoring-with-charging-case","provider":"Nexoltic","version":"1.0","type":"link"}