{"product_id":"colmi-r02-smart-ring-rose-gold-compact-health-tracker-with-24-7-heart-rate-spo2-portable-charging-case","title":"COLMI R02 Smart Ring Rose Gold — Compact Health Tracker with 24\/7 Heart Rate \u0026 SpO2, Portable Charging Case","description":"\u003cp\u003e\u003cstrong\u003eThe COLMI R02 is a discreet rose-gold smart ring that measures heart rate, blood oxygen, and sleep patterns while fitting into a portable charging case—no subscription required.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for people who want continuous health insight without the bulk of a wrist device, the COLMI R02 Smart Ring packs sensors and a compact charger into an elegant metal band. It tracks heart rate around the clock, measures blood oxygen levels, and records nighttime sleep staging, and it delivers those metrics to the companion app with no monthly fees. The ring’s small footprint and neutral rose-gold finish make it suitable for everyday wear and for those who prefer unobtrusive tech.\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 integrated optical sensors to collect pulse and SpO2 data throughout the day and night. While it provides reliable trend information for daily monitoring and lifestyle decisions, it’s intended for wellness tracking rather than clinical diagnosis.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e24\/7 heart rate monitoring with selectable measurement frequency.\u003c\/li\u003e\n  \u003cli\u003eBlood oxygen (SpO2) readings for spot-checks and trend observation.\u003c\/li\u003e\n  \u003cli\u003eAlgorithm filters to reduce false readings from hand movements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat is the battery life and how does the charging case work?\u003c\/h3\u003e\n\u003cp\u003eBattery endurance depends on the monitoring mode you choose: Basic mode extends life by limiting recorded metrics, while Enhanced mode uses real-time heart-rate sampling and shortens runtime. The included portable charging case stores extra power and charges the ring on the go, so you can top up without a wall outlet.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBasic Mode: approximately 4–5 days for step and basic sleep tracking.\u003c\/li\u003e\n  \u003cli\u003eBalanced Mode: about 3–4 days with hourly heart-rate sync.\u003c\/li\u003e\n  \u003cli\u003eEnhanced Mode: roughly 2–3 days with continuous heart-rate monitoring.\u003c\/li\u003e\n  \u003cli\u003eCompact charging case and cable included for convenient recharges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich features help with sleep and daily activity insights?\u003c\/h3\u003e\n\u003cp\u003eThe COLMI R02 focuses its sleep analysis on nighttime rest to minimize daylight interference and provide clearer overnight trends. Daily activity tracking relies on natural arm movement detection and software filters to avoid counting stationary hand motions as steps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNight-specific sleep scoring to improve overnight accuracy.\u003c\/li\u003e\n  \u003cli\u003eContinuous trend logging for heart rate, SpO2, and sleep stages.\u003c\/li\u003e\n  \u003cli\u003eStep counting that discriminates true walking from hand gestures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDo I need a subscription or a sizing kit before buying?\u003c\/h3\u003e\n\u003cp\u003eNo recurring fees are required to use the COLMI R02; all core functions are accessible without a subscription. To ensure a comfortable fit and avoid returns, COLMI strongly recommends purchasing a sizing kit or using the size chart before selecting your ring size.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo app subscription or recurring costs for core data access.\u003c\/li\u003e\n  \u003cli\u003eOptional sizing kit recommended for accurate size selection.\u003c\/li\u003e\n  \u003cli\u003eIncludes one ring, charging case, charging cable, and manual in the box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The COLMI R02 smart ring is aimed at adults who want a subtle wearable for everyday wellness tracking—people who prefer a ring to a watch, users who travel and value a portable charging solution, and anyone looking for continuous heart rate, SpO2, and overnight sleep trends without subscription fees. It’s ideal for those focused on lifestyle monitoring and long-term trend awareness rather than clinical diagnostics.\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 monthly subscription?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — the COLMI R02 provides core features like heart rate, SpO2, and sleep tracking without any subscription fees.\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: COLMI recommends buying the sizing kit or using the size chart to measure your finger before purchasing for an accurate fit.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"COLMI","offers":[{"title":"Default Title","offer_id":48413656318109,"sku":"B0FKSHLR6B","price":78.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/colmi-r02-front-rose-gold.jpg?v=1781276469","url":"https:\/\/nexoltic.com\/products\/colmi-r02-smart-ring-rose-gold-compact-health-tracker-with-24-7-heart-rate-spo2-portable-charging-case","provider":"Nexoltic","version":"1.0","type":"link"}