The COLMI R02 Smart Ring is a lightweight smart ring designed for health monitoring, sleep tracking, fitness tracking, and everyday wear. It offers a stylish minimalist design with basic smart health features in a compact ring form factor, making it a budget-friendly alternative to premium smart rings like Oura.
Specifications and Features:
- Smart wearable fitness ring design
- Ultra-thin 2.7mm lightweight body
- Stainless steel outer shell
- Hypoallergenic epoxy resin inner layer
- Bluetooth 5.0 connectivity
- RF03 processor/chipset
- 17mAh battery capacity
- Up to 5–7 days battery life
- Fast charging support
- Magnetic charging dock/cable
- IP68 water resistance
- 3ATM waterproof rating
- Suitable for hand washing, rain, and daily water exposure
- Heart rate monitoring
- Blood oxygen (SpO2) monitoring
- Sleep tracking and sleep reports
- Stress monitoring
- Step tracking
- Calories burned tracking
- Distance tracking
- Multi-sport activity tracking
- Real-time health monitoring
- Automatic sleep detection
- Activity statistics and reports
- Smartphone app synchronization
- Uses QRing mobile app
- Compatible with Android 5.1+ and iOS 8.0+
- Comfortable all-day wear design
- Available in multiple colors and sizes
- Minimalist premium ring appearance
- No screen/display for notifications
- No built-in GPS
- No NFC payments
- No calling or messaging support
- Health readings are not medical-grade
- Best for sleep tracking, casual fitness monitoring, and discreet wearable use