Smartring Colmi R03 18.9MM 9 (gold)

Now you can access the most important information at your fingertips. The Colmi R03 smart ring provides convenient access to health and exercise reports from the QRing app. What's more, it is water resistant (5ATM), corrosion and abrasion resistant, so you can comfortably use it every day. The included case will allow you to safely store the ring and recharge its energy. In addition, the lightweight (4.7 g) design means comfort.

Monitor your health status

Colmi R03 will allow you to take care of your health. Smartring monitors sleep, its phases and quality, so you can eliminate bad habits. In addition, it measures your heart rate for the past 24 hours, which will allow you to understand the state of your body both at rest and during exercise. You can also measure your blood oxygen level and check all your health data in the dedicated QRing application.

Increase the effectiveness of your workouts

Exercise more effectively with Colmi R03. The smart ring accurately records data on the number of steps, calories burned and distance traveled. In addition, you can choose from 21 sports modes. What's more, the Smartring is 5ATM waterproof, which means you can use it during intense workouts and swimming without worrying about injuries.

Dedicated application

Download the QRing app, compatible with Android and iOS, and get the most out of your Colmi R03. From its level, you can monitor all parameters and physical activity. It generates daily, weekly and monthly reports of your measurements so you can react quickly to any abnormalities.

Long working hours

Use the Colmi R03 for days without worrying about draining it. The smart ring works for about 3-5 days and charging takes about 1 hour. The included case not only makes it easy to store, but also allows you to charge the device. Its powerful battery allows the ring to renew its energy up to 13 times on a single charge.

Included

• smart ring

• USB-C cable

• charging case

• user manual

Same summary

Smartring Colmi R03 18.9MM 9 (gold) is suitable for anyone who wants to discreetly monitor basic health and activity data without wearing a watch or bracelet. Users who value comfort and a less noticeable design will be able to wear the ring throughout the day, even during sports or everyday activities. Before choosing, it is important to check compatibility with your phone and accurately measure the appropriate size, as this affects the reliability of measurements and comfort. Advanced functions such as voice control or contactless payment are not expected with this model, so the ring is more focused on basic monitoring of vital signs and notifications.

Recommendation source: Enaa guides and team experiences.

User view

This smart ring is most often used by active individuals who want to keep track of their daily steps, monitor their heart rate or sleep quality, but who value a minimally disruptive and lightweight wearable technology. It is especially practical for those who do not want conspicuous devices during sports or at work, as the smart ring works almost invisibly and unobtrusively in everyday life.

Users often emphasize that the Colmi brand stands out for its price-to-feature ratio, which allows for easy integration into your lifestyle without complicated settings.

Why buy at Enaa

When purchasing a smartring on Enaa, you can count on a clear presentation of key information and a fast and easy online experience with a focus on data security. Users often appreciate that on the one hand they can find products from verified sources, and on the other hand they can easily compare and choose the right model for themselves.

Answers to frequently asked questions

Can I use the Smartring Colmi R03 with any smartphone?

The ring is compatible with most Android and iOS phones, but it is recommended to check whether your phone supports all the features of the app and whether the system version meets the manufacturer's requirements.

What should I consider when choosing a smart ring size?

Accurate sizing is important for comfort and proper sensor function. We recommend measuring your finger circumference and checking the size chart for this model before purchasing.

Is the ring suitable for use during sports or in contact with water?

The Colmi R03 Smartring is designed for everyday wear and normal activities, including recreational sports. However, for intense sports or frequent exposure to water, please check the water resistance level, as prolonged exposure is not recommended.

Can I use my ring to monitor notifications from my mobile phone?

Yes, basic notifications such as calls or messages are supported, but the range of features may vary depending on the connected app and phone model.

What should I do if the ring is not showing the correct data?

If the measurements are inaccurate, first check the correct fit of the ring - it should sit tightly but comfortably on the finger. We also recommend cleaning the inside of the ring regularly for optimal sensor performance.

Description updated: April 2026