COLMI R02 Smart Ring – Ultra-Light Health Tracker | Heart Rate, SpO₂, Stress & Sleep Monitoring | 5ATM Waterproof Wearable

The COLMI R02 Smart Ring is a compact next-generation wearable designed to bring powerful health tracking into a minimalist and elegant form. Built with a durable steel body and advanced low-power sensors, it provides continuous wellness monitoring while remaining extremely lightweight and comfortable for 24/7 wear.

Unlike bulky smartwatches, the COLMI R02 delivers essential health insights directly from your finger, tracking your heart rate, blood oxygen (SpO₂), stress levels, sleep quality, and daily activity metrics with high efficiency and accuracy.

Designed for everyday performance, the ring is rated 5ATM waterproof, making it suitable for workouts, handwashing, rain, and general daily use. Whether you're at the gym, working, or sleeping, it continuously collects health data and syncs it with the companion app for detailed analysis.

Key Features

• ❤️ Continuous heart rate monitoring
• 🩸 Blood oxygen (SpO₂) tracking
• 😴 Sleep quality analysis & tracking
• ⚡ Stress monitoring & recovery insights
• 🏃 Activity tracking: steps, calories, distance
• 📊 Multi-sport mode support (20+ activities)
• 💧 5ATM waterproof design for daily & sports use
• 🪶 Ultra-light design (only ~4.4g)
• 📲 App-based health data tracking & reports
• 🔋 Low-power chip for stable, long-lasting performance

Smart Health Tracking

The COLMI R02 uses advanced sensors to continuously monitor your body’s key health indicators:

• Real-time heart rate tracking
• Sleep cycle analysis (deep, light, REM)
• Daily stress level monitoring
• Blood oxygen measurement (SpO₂)
• Fitness activity recording

All data is automatically synchronized to the Qring app, allowing you to view trends, history, and personalized health insights.

Design & Comfort

Engineered with a lightweight steel housing, the R02 is designed for all-day comfort without irritation. Its ergonomic shape ensures a secure fit on multiple fingers, with the index finger recommended for best accuracy.

Specifications

• Brand: COLMI
• Model: R02
• Material: Stainless steel
• Weight: ~4.4g
• Battery Capacity: 17mAh
• Waterproof Rating: 5ATM
• Sensors: Heart rate, SpO₂, motion sensor
• Connectivity: Bluetooth
• App: Qring
• Compatibility: Android 5.0+ / iOS 10+
• Display: No screen

Usage Tips

• Recommended finger: index finger (best accuracy)
• Ensure proper sizing before purchase for best performance
• Charge fully before first use
• Connect via Qring app for full functionality

What’s in the Box

• 1 × COLMI R02 Smart Ring
• 1 × Charging Cable / Charging Case (depending on variant)
• 1 × User Manual

Perfect For

Fitness tracking, sleep optimization, daily wellness monitoring, and users who want a minimal, stylish alternative to smartwatches.

COLMI official store

Authentic COLMI smart watch are engineered and manufactured with high-quality materials, and they're always quality-tested before they leave our factory.
Since counterfeit or fake devices are not built or tested to these standards, they might perform poorly or malfunction. So, we recommend buying devices sold only by our official store.

Brand Story

COLMI was established in 2012.

Slogan: Your first smart watch.
Young and simple, but never naive.

Mission: Provide cost-effective smart electronics.