COLMI R02 Gold Smart Ring – Body Temperature, Heart Rate, Spo2, Sleep Tracker with IP68 Waterproof – Must Confirm Finger Size before Order
Description
Know Your Body – Right at Your Fingertips
Meet the COLMI R02 Smart Ring in Gold – your elegant daily companion for smarter health tracking. Whether you’re focusing on your daily wellness routine, keeping an eye on your heart, or just want a stylish wearable that doesn’t scream “tech,” this smart ring is made for you.
It tracks your body temperature, heart rate 24/7, blood oxygen (SpO2), sleep quality, steps, calories and distance – all from a lightweight, minimalist ring that weighs just 4.4g and is thinner than most traditional rings.
Why choose COLMI R02?
Tracks body temperature + heart rate + SpO2 + sleep
21 sports modes – from running to yoga
IP68 waterproof – wear it while washing hands, in the rain, even swimming
fast magnetic charging (full charge in 2 hours)
Gold stainless steel exterior + hypoallergenic inner material
*Smart rings are one of the fastest-growing wearable categories on TikTok, with search interest up 67% year over year – now is the perfect time to join the trend*
COLMI ring sizes DO NOT match standard US ring sizes.
The ring fits snugly and must be measured correctly for accurate sensor readings and comfortable daily wear.
How to measure your finger size:
Take a piece of string or a strip of paper.
Wrap it around the base of the finger you plan to wear the ring on (index finger is recommended for best sensor accuracy, middle and ring fingers also work).
Mark the point where the string overlaps.
Measure the length with a ruler – this is your finger circumference.
Match your circumference to the COLMI R02 size chart below.

️ 24/7 Heart Rate Monitoring The COLMI R02 keeps track of your heart rate around the clock, helping you understand your daily activity intensity and recovery status. Data syncs seamlessly to the QRing app on your phone.
Blood Oxygen (SpO2) Measurement On-demand SpO2 readings give you insight into how well oxygen is circulating in your body – a useful metric for anyone focused on overall wellness.
️ Body Temperature Tracking Stay aware of your body temperature changes throughout the day. This feature adds an extra layer of health awareness to your daily routine.
Automatic Sleep Tracking No buttons, no manual start – just wear the ring to bed and wake up to a detailed sleep report in the app, including sleep duration and quality insights.
️ 21 Sports Modes & Activity Tracking Whether you’re walking, running, cycling, doing yoga, dancing or aerobics – the ring automatically records your steps, distance and calories burned.
Smart Notifications Get incoming call, message and app alerts right on your finger – no need to pull out your phone.
Tips for best results:
For accurate sensor readings, wear the ring snugly with the sensor placed on the inner side of your finger.
Fully charge the ring before first use.
Download the QRing app to sync data, view health reports and customize settings.
Keep the ring clean and dry when not in use to maintain optimal performance.
Although IP68-rated, avoid prolonged exposure to hot water, high-pressure sprays or corrosive liquids.
PLEASE NOTE: Because the ring must fit properly for both comfort and accurate sensor function, we strongly encourage you to measure your finger circumference using the method above before placing your order.
COLMI ring sizing is unique and does not follow standard ring sizes. Choosing the wrong size may result in inaccurate health data or an uncomfortable fit.
Still unsure about sizing? Feel free to message us before ordering – we’re happy to help you find the right fit!
