Core Features
Touchscreen Display
The R12 stands out for having a built-in LED touchscreen—allowing you to swipe or tap to check your heart rate, steps, and battery level directly on the ring.Wireless Charging
One of the few COLMI rings to support true wireless charging. No pins, no cable insertions—just place it on the charging dock.Health Tracking
Heart Rate (24/7)
Blood Oxygen (SpOâ‚‚)
Sleep Monitoring
Step Counter
Calorie Burn
Multi-sport modes (running, walking, cycling, swimming)
Water Resistance
Rated 5 ATM – suitable for showers, swimming, and daily wear.Battery Life
3–7 days typical use
15 mAh (ring sizes 7–9), 18 mAh (sizes 10–13)
Fully charges in about 1.5 hours
Chipset & Sensors
Processor: Realtek RTL8762 ESF
Sensors: ST LIS2DOC (motion), VC30F (HR sensor)
Bluetooth 5.2
Companion App
Pairs with the QRing app, which provides health data, goal tracking, and notification control. Compatible with Android and iOS.
Pros
Touchscreen display makes it more usable without checking your phone.
Wireless charging is convenient and more durable long-term.
Clean and minimal look, yet durable and water-resistant.
Affordable considering its features.
Cons
Battery life is decent but shorter than simpler models like R10 or R02.
Health tracking is good but not as detailed or medically accurate as premium rings.
The QRing app lacks integration with platforms like Apple Health or Google Fit.
The display is small and purely functional—not customizable.
Who It’s For
Great for users who want a lightweight, screen-equipped ring for basic health tracking.
Ideal if you want wireless charging and a visible display in a ring format.
Less suited for biohackers or users needing clinical-level data.
Would you like a comparison between the R12 and another model like the R10, R11, or R02?
Freya Gallagher –
The COLMI R12 Smart Ring is a real game changer with its LED touchscreen display. I love how easy it is to check my heart rate, steps, and sleep stats directly on the ring. The wireless charging feature is a bonus just pop it onto the dock, and you’re good to go. As a fitness enthusiast, the 5 ATM water resistance rating is a huge plus for me. Battery life is decent too, lasting around 3 7 days. Overall, a solid 4 star rating from me.
Sophie Patel –
i recently got the COLMI R12 Smart Ring, and it’s pretty cool. The touchscreen display makes it easy to check my heart rate and steps. I love how it wirelessly charges no fuss with cables. The health tracking features are handy, especially the 24/7 heart rate monitoring. I’ve been wearing it swimming, and it’s held up well. Battery life is decent, lasting me around 3 4 days. Overall, I’m happy with my purchase. It’s a neat little gadget that helps me keep track of my health without much hassle. A solid 4 out of 5 stars from me.
Harry O’Reilly –
The COLMI R12 Smart Ring has been a practical addition to my daily routine. With its LED touchscreen, checking my heart rate and steps is a breeze. The wireless charging feature is convenient, making it hassle free to power up. The health tracking functions are accurate, and the water resistance is impressive. Battery life is decent, lasting me around a week with regular use. A solid 4 out of 5 stars for this smart ring.
Sarah Thompson –
During my week testing the smart ring, I discovered its sleek design and convenience. The subtle notifications kept me up to date without checking my phone constantly. Although the battery life could be longer, the touch controls were surprisingly responsive. A stylish and practical wearable for those who want a subtle way to stay connected on the go. Great for anyone who values both fashion and functionality in their everyday accessories. Overall, a handy tech jewellery piece that adds a touch of smart to your look.
Emily Davies –
The COLMI R12 Smart Ring is a game changer for my fitness journey. With its seamless touchscreen display and advanced health tracking features, it’s like having a personal trainer on my finger. The wireless charging is a convenient bonus. The packaging was impressive, and the customer service top notch. Overall, a solid 4 star experience.
Gareth Williams –
The COLMI R12 Smart Ring is a solid choice for tracking your health and fitness. With its LED touchscreen, easy wireless charging, and a wide range of health monitoring features, this ring keeps you informed and motivated throughout the day. The battery life is impressive, lasting up to a week on a single charge. A reliable companion for those serious about their well being.
Max Davies –
The packaging on this smart ring makes me feel like I’m unboxing a high tech gadget from the future. The customer service was on point, quick to respond to my queries. The features on the COLMI R12 are impressive, and it’s been a cool addition to my accessories collection. Overall, a solid product that adds a touch of tech savviness to my daily look. Great stuff.
Aleksandr Ivanov –
I recently got the COLMI R12 Smart Ring, and it’s quite impressive. The packaging was top notch, and the delivery was lightning fast. This smart ring is great for tracking my daily activities. Four stars from me.
Freya Gallagher –
The COLMI R12 Smart Ring is a real game changer with its LED touchscreen display. I love how easy it is to check my heart rate, steps, and sleep stats directly on the ring. The wireless charging feature is a bonus just pop it onto the dock, and you’re good to go. As a fitness enthusiast, the 5 ATM water resistance rating is a huge plus for me. Battery life is decent too, lasting around 3 7 days. Overall, a solid 4 star rating from me.
Sam X (verified owner) –
My experience with this smart ring was surprising. Once it arrived (which was pretty quick), I couldn’t wait to try it out. The way it tracks my fitness is top notch, making it a useful gadget to have. Definitely recommend it if you’re into fitness tracking.
Dave W. (verified owner) –
This smart ring is a game changer for me. The touchscreen display is so easy to navigate, and I love that I can track my heart rate and steps on it. The wireless charging feature is super convenient just pop it on the dock, and it’s good to go. A solid choice if you want a stylish fitness companion.