# COLMI R02 Smart Ring, Size 10, 19.8 mm, Black with Charging Case

**URL:** https://aio.lv/en/product--colmi-r02-black-10-case--12415878
**Data updated:** 2026-05-09 20:22 (EEST)
**Category:** Smart rings
**Manufacturer:** Colmi
**Manufacturer code:** R02 Black 10 (case)
**EAN:** 6972436985883
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 28.99 €
**Prices and availability valid until:** 2026-07-20 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-10-case--12415878

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The COLMI R02 is a wearable smart ring designed for health and activity tracking. This size 10 model features a 19.8 mm diameter and comes in a sleek black finish. The set includes a dedicated charging case for convenient power management. Ideal for monitoring daily wellness metrics, this compact device combines modern technology with a discreet, lightweight design for comfortable everyday wear.

## Long description

The COLMI R02 Smart Ring in size 10 (19.8 mm) is a lightweight, discreet wearable designed to integrate health monitoring and sports tracking into your daily routine. Finished in black, this device features a durable titanium alloy exterior and a hypoallergenic resin interior for comfort. It tracks heart rate, blood oxygen (SpO2), sleep stages, and activity across 21 sports modes. With Bluetooth 5.0 connectivity, it syncs seamlessly with the QRing app, while the included charging case provides convenient power management for up to 7 days of use.
Advantages
The primary benefit of the COLMI R02 is its unobtrusive design, weighing only 4.7 g with a thickness of 2.7 mm, making it comfortable for 24/7 wear. Unlike bulkier wearables, it does not interfere with daily tasks or sleep. The automatic background monitoring of vital signs ensures consistent data collection without manual input. Furthermore, the IP68 water resistance allows for worry-free use during exercise or hand washing, while the included charging case ensures the device is always ready for use.
Suitable for
Monitoring daily activity levels and step counts
Tracking heart rate and blood oxygen saturation
Analyzing sleep quality and recovery stages
Recording metrics for 21 different sports modes
Users who prefer a discreet alternative to smartwatches
This device may not be suitable for individuals requiring medical-grade diagnostic equipment, as it is 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-based interface for real-time notifications may find other wearable formats more appropriate.
Key specifications
Inner diameter: 19.8 mm (Size 10)
Material: Titanium alloy casing with hypoallergenic resin lining
Connectivity: Bluetooth 5.0
Water resistance: IP68
Battery life: 6–7 days
Compatibility: Android 4.4+, iOS 8.0+, Harmony OS
Sports modes: 21
How to use
To begin, 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. Wear the ring comfortably on your finger; for the most accurate readings, ensure it fits snugly but not too tightly. Data will sync automatically whenever the app is opened, allowing you to view your health trends and workout statistics in the dashboard.
What to consider before purchase
Verify your finger size using a string or measuring tape to ensure a 19.8 mm diameter is the correct fit.
Ensure your smartphone operating system meets the minimum requirements (Android 4.4, iOS 8.0, or Harmony OS).
Consider that the device is designed for general wellness and is not a substitute for professional medical devices.
For optimal accuracy, it is recommended to measure your finger size in the evening when fingers are typically slightly larger. Keep the charging case clean and dry to ensure reliable magnetic contact during charging cycles.

## FAQ

### How much does the COLMI R02 Smart Ring Size 10 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 — 64 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 09.07.2026 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

https://aio.lv/img/cache/product/12415878/68705932_large.webp