# Colmi R02 Smart Ring, Size 9, 18.9 mm, Black with Charging Case

**URL:** https://aio.lv/en/product--colmi-r02-black-9-case--12415879
**Data updated:** 2026-05-09 20:22 (EEST)
**Category:** Smart rings
**Manufacturer:** Colmi
**Manufacturer code:** R02 Black 9 (case)
**EAN:** 6972436985876
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 28.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 23.96 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--colmi-r02-black-9-case--12415879

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The Colmi R02 is a wearable smart ring designed for health and activity tracking. This size 9 model features a 18.9 mm diameter and comes in a sleek black finish. The set includes a dedicated charging case for convenient power management. Ideal for users seeking a discreet, lightweight alternative to traditional smartwatches for daily fitness and wellness monitoring.

## Long description

The COLMI R02 Smart Ring in size 9 (18.9 mm) is a lightweight, discreet wearable device designed to integrate health monitoring and sports tracking into your daily routine. Crafted from a durable titanium alloy with a hypoallergenic resin interior, this black smart ring offers a comfortable fit for 24/7 wear. It tracks vital signs such as heart rate and blood oxygen levels (SpO2), monitors sleep stages, and records activity across 21 sports modes. With Bluetooth 5.0 connectivity, it syncs seamlessly with the QRing app, while the included charging case ensures up to 7 days of battery life.
Advantages
The primary benefit of the COLMI R02 is its unobtrusive design, weighing only 4.7 g and measuring 2.7 mm in thickness, which makes it comfortable enough to wear during sleep or intense physical activity. Unlike bulkier smartwatches, it does not interfere with hand movements or daily tasks. The device provides continuous, automated health tracking, ensuring that data is collected consistently without manual intervention. Its IP68 water resistance adds further convenience, allowing for use during hand washing or workouts without the need to remove the ring. The dedicated charging case simplifies power management, providing a secure storage spot and a quick way to recharge the device.
Suitable for
Monitoring daily physical activity and step counts
Tracking heart rate and blood oxygen saturation levels
Analyzing sleep quality and recovery stages
Recording metrics for 21 different sports modes
Users who prefer a discreet alternative to traditional smartwatches
When it may not be suitable
This smart ring may not be suitable for individuals who require medical-grade diagnostic equipment, as its sensors are intended for general wellness and fitness tracking rather than clinical health monitoring. Additionally, users with very specific finger sizes outside the available range or those who prefer a display screen for real-time notifications may find a traditional smartwatch more appropriate for their needs.
Key specifications
Inner diameter: 18.9 mm
Weight: 4.7 g
Thickness: 2.7 mm
Material: Titanium alloy exterior, hypoallergenic resin interior
Water resistance: IP68
Connectivity: Bluetooth 5.0
Battery life: 6–7 days
Compatibility: Android 4.4+, iOS 8.0+, Harmony OS
App: QRing
How to use
To begin using the COLMI R02, ensure the ring is fully charged using the provided magnetic charging case. Download and install the QRing app on your smartphone, then enable Bluetooth to pair the devices. Once connected, the ring will automatically begin tracking your heart rate, activity, and sleep patterns. You can view your data by syncing the ring with the app, which organizes your metrics into easy-to-read reports. For optimal accuracy, ensure the ring fits snugly on your finger, ideally measured in the evening when finger circumference is naturally slightly larger.
What to consider before purchase
Measure your finger circumference accurately to ensure the size 9 (18.9 mm) is the correct fit.
Verify that your smartphone operating system is compatible with the required app.
Consider whether you prefer a screenless wearable or a device with a display.
Ensure you have a USB power source available for the charging case.
Usage recommendations
For the most accurate health and sleep data, wear the ring consistently throughout the day and night. Clean the inner resin surface periodically with a soft, dry cloth to maintain hygiene and sensor accuracy. Keep the charging case in a dry place and ensure the magnetic contacts are free of debris to maintain efficient charging performance.

## FAQ

### How much does the Colmi R02 Smart Ring Size 9 Black cost, and is it available for purchase?

The price is 28.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 128 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Colmi products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Colmi service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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