COLMI Ring 2 is an elegant smart ring for everyday wear that offers health monitoring, 24/7 sleep tracking and sports activity tracking. It tracks heart rate, HRV, SpO2 (blood oxygenation), stress and body temperature, while the overviews in the Q Ring app can use AI-powered analysis. Thanks to 5 ATM water resistance, it is also suitable for swimming, and with a battery life of 3–5 days it won’t hold you back day or night. The price is for 1 piece of the ring.
Health data with AI overviews in the app
Accurate sensors track heart rate, HRV, SpO2, stress and body temperature. In the Q Ring app you get clear statistics and AI analysis for smarter interpretation of the measured values.
Automatic 24/7 sleep tracking
Ring 2 automatically detects wakefulness as well as light, deep and REM sleep stages. It also records time to fall asleep, sleep efficiency, night awakenings and daytime naps – without manual start.
5 ATM water resistance and convenient charging in the case
Thanks to 5 ATM, the ring is suitable for swimming and normal contact with water. Battery life is about 3–5 days, and charging is made easier by the included charging case with USB‑C.
The COLMI Ring 2 smart ring (size 9) combines a minimalist look with advanced sensors, giving you an overview of your body and fitness without needing to wear a watch. In the Q Ring app you’ll see summaries and detailed statistics, and selected data can be further processed using AI analysis for clearer recommendations.
What Ring 2 can track and evaluate:
- Health metrics: heart rate, HRV, SpO2, stress, body temperature
- Sleep automatically: light, deep and REM sleep, time to fall asleep, sleep efficiency, night awakenings and daytime naps
- Activities: walking, running, cycling, swimming; steps, distance, calories, workout duration, heart rate
- Other features: menstrual cycle tracking, leaderboard with family and friends, “Space of Love” couples feature
- Gesture control: touchless control of selected functions (e.g., photos, videos, games)
The ring is made of stainless steel, and is light and thin for comfortable wear even during sleep. 5 ATM water resistance allows normal use when washing hands and while swimming. The battery lasts approximately 3 to 5 days; charging is via a magnetic cable, and the package also includes a 200 mAh charging case with a USB-C port. The price is stated for 1 piece.
Specifications
- Manufacturer
- COLMI
- Model
- R02S (COLMI Ring 2)
- Color
- Black
- Size
- 9
- Inner diameter (size 9)
- 19.1 mm
- Thickness
- 2.7 mm
- Width
- 7.0 mm
- Main chipset
- REALTEK RTL8762E
- FLASH memory
- 512 Kb ROM
- Heart rate sensor
- Vcare VC30F
- G-sensor
- ST LIS2DOC
- Bluetooth
- BLE 5.0
- Bluetooth range
- approx. 10 m
- Battery type
- lithium-polymer
- Battery capacity
- 14 mA
- Charging method
- 2-pin magnetic cable
- Number of charging cycles
- More than 300
- Charging time
- Approx. 1 h
- Battery life
- Approx. 3–5 days
- Charging case capacity
- 200 mAh
- Charging case charging method
- USB-C
- Ring material
- Stainless steel
- Weight
- 4 g
- Supported operating systems
- Android 4.4 and newer, iOS 8.0 and newer, Harmony OS
- App
- Q Ring
- Water resistance
- 5 ATM
- Updates
- OTA
- App languages
- English, Polish, Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Turkish, Hebrew, Greek, German, Italian, Latvian, Czech, Slovak, Slovenian, Japanese, French, Thai, Estonian, Swedish, Lithuanian, Simplified Chinese, Traditional Chinese, Romanian, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay
