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A close-up view of a black titanium steel smart ring with a circular sensor and green light display.
Size chart for the COLMI R02 Ring showing dimensions in millimeters and inches.
A smartphone screen displays a heart rate monitoring app with a reading of 123 bpm and detailed data.
A titanium steel smart ring is shown next to a smartphone displaying sleep monitoring data and reports.
A woman exercising outdoors while a smartphone displays sports statistics and workout details.
Package for a COLMi Smart Ring, showing the ring and an accompanying USB cable.
A close-up view of a titanium steel smart ring with health monitoring features.
A close-up view of a titanium steel smart ring with health monitoring features.
A close-up view of a titanium steel smart ring with health monitoring features.
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Titanium Steel Smart Ring with Health Monitoring

Regular price $37.99 Sale price $35.99 – $62.99

Why customers love it

Discreetly track your well-being, wherever you go

Experience advanced health monitoring in the most elegant form—a lightweight ring designed for seamless integration into your daily life.

  • Continuous monitoring of heart rate, blood oxygen (SpO2), and stress levels.
  • Tracks daily activity including steps, distance, and calories burned.
  • Crafted from durable titanium steel for long-term comfort and reliability.
  • Features a lightweight design, weighing only 4.7g for unobtrusive wear.
  • Enjoy peace of mind with long-lasting battery life and magnetic charging.
A close-up view of a black titanium steel smart ring with a circular sensor and green light display.

Seamless Health Integration

Comprehensive Vital Tracking

Monitor your heart rate, blood oxygen, and stress levels in real-time.

Activity Awareness

Keep track of your daily movement, distance traveled, and calories burned.

Built to Last

Constructed from durable titanium steel for everyday resilience.

Convenient Power

Enjoy extended use thanks to the long-lasting battery and magnetic charging.

Product Details

Key Specifications

The details behind the smart ring.

Material
Titanium Steel
Water Resistance
3ATM (Suitable for everyday wear and handwashing)
Weight
4.7g (Ultra-lightweight)
Monitoring Features
Heart Rate, SpO2, Stress Level, Steps, Distance, Calories
Charging Type
Magnetic Charging

Why Choose the Titanium Ring?

Smart Ring vs. Typical Fitness Trackers

Experience the difference in build quality and discreet design.

Feature
Titanium Smart Ring
Standard Fitness Tracker
Build Quality
Durable Titanium Steel Shell
Often Plastic or Aluminum Casing
Discretion
Ultra-light and discreet ring form factor
Bulky wrist-worn watch design
Durability
Rated for everyday wear and handwashing (3ATM)
May lack robust water resistance
Data Focus
Integrated health metrics (HR, SpO2, Stress)
Often limited to basic step counting

Our worry-free shopping promise

If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.

Frequently Asked Questions

Answers to common questions about your smart ring.

How accurate is the heart rate monitoring?

The device uses advanced sensor technology to provide continuous heart rate data, offering reliable tracking for daily activity and workout monitoring.

Can I wear this ring while swimming?

While the ring has 3ATM water resistance for everyday wear and handwashing, it is not designed for prolonged or intense swimming activities. Please consult your physician before engaging in strenuous water sports.

How long does the battery last?

The device offers long-lasting battery life, providing consistent tracking throughout your day and workouts. Charging is convenient via magnetic connection.

Is the ring suitable for sensitive skin?

The titanium steel construction is designed for comfort, but individuals with severe metal sensitivities should test the product first. It is generally well-tolerated for daily wear.

Shipping & returns

Shipping

  • Delivers to United States (based on your selected country/region).
  • Estimated delivery: 3–15 business days after dispatch.
  • Shipping cost: Free.

Returns

You can request a return within 14 days after delivery. Items should be unused and in original packaging where possible. Contact us before sending anything back.