R02 Smart Ring 3 ATM Fitness Tracker - Black

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