# Smart ring Colmi R02 size 9, 18.9 mm inner diameter — Black

**URL:** https://aio.lv/en/product--colmi-r02-black-9--10936305
**Data updated:** 2026-03-16 16:32 (EET)
**Category:** Smart rings
**Manufacturer:** Colmi
**Manufacturer code:** R02 Black 9
**EAN:** 6972436985142
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 22.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 18.59 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--colmi-r02-black-9--10936305

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Colmi R02 is a smart ring in size 9 with an 18.9 mm inner diameter, finished in black. It offers the compact form of wearable tech for continuous on‑finger use. Designed for notification alerts, basic activity monitoring and discreet interaction with a paired smartphone, the ring suits users who want a low‑profile wearable for daily tracking and hands‑free notifications.

## Long description

Colmi R02 smart ring in size 9 (18.9 mm inner diameter) — Black — is a compact wearable that provides continuous on‑finger monitoring of activity and basic health metrics. The ring measures heart rate, blood oxygen saturation (SpO2), sleep, steps, calories and distance, supports 21 sports modes and pairs with the QRing app via Bluetooth 5.0. With IP68 water resistance, a 17 mAh battery offering up to 6 days of operation and magnetic charging, the Colmi R02 is designed for everyday use while remaining lightweight (4.4 g) and slim (2.7 mm thickness).
Advantages
The Colmi R02 combines continuous heart rate and SpO2 monitoring with automatic sleep tracking and multi‑sport activity modes in a discreet, polished stainless steel exterior with a hypoallergenic resin interior. Its IP68 rating allows use in wet conditions, and the magnetic USB‑A charging cable enables a full charge in about one hour. The device synchronizes data to the dedicated QRing app for activity and health reports and settings.
Suitable for (tasks / use cases)
Daily activity tracking (steps, calories, distance)
24/7 heart rate and SpO2 monitoring
Automatic sleep tracking and sleep analysis
Tracking chosen workouts from 21 sports modes (walking, running, cycling, yoga, etc.)
Wearable notifications and discreet on‑finger monitoring
Key specifications
Manufacturer: Colmi
Model: R02 (size 9, 18.9 mm inner diameter)
Color: Black
Main control unit: RF03
Bluetooth: 5.0
Battery capacity: 17 mAh
Operating time: Up to 6 days
Charging time: Approx. 1 hour (magnetic charging)
Waterproof rating: IP68
Application: QRing
Weight: 4.4 g
How to use
Place the ring on the intended finger (size 9, 18.9 mm inner diameter) and pair it with your smartphone using Bluetooth 5.0. Install the QRing app to synchronize measurements, view activity and health reports, and adjust device settings. Wear the ring continuously to enable automatic sleep detection and 24‑hour heart rate monitoring. Charge the ring with the supplied magnetic USB‑A cable; a full charge takes about one hour.
Usage recommendations
Wear the ring snugly but comfortably to ensure accurate sensor readings. For reliable SpO2 and heart rate measurements, keep the ring clean and positioned on a stable finger without excessive movement during measurement. Although the ring is IP68 rated, avoid exposure to high‑temperature water or chemicals and follow the app prompts for firmware updates and calibration.

## FAQ

### How much does the Smart ring Colmi R02 size 9 (18.9 mm) cost, and is it available for purchase?

The price is 22.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 92 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 02.07.2026 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/10936305/61241042_large.webp