# Smart ring Colmi R03 — size 9 (18.9 mm inner diameter), gold finish

**URL:** https://aio.lv/en/product--colmi-r03-gold-9--11108747
**Data updated:** 2026-03-16 16:35 (EET)
**Category:** Smart rings
**Manufacturer:** Colmi
**Manufacturer code:** R03 Gold 9
**EAN:** 6972436985654
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 27.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 23.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--colmi-r03-gold-9--11108747

## 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 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Colmi R03 is a compact smart ring in size 9 with an 18.9 mm inner diameter and gold finish. It offers discreet wearable tracking and basic health and activity monitoring for daily use. The ring pairs with compatible devices to deliver notifications and activity data, making it suitable for users who want a minimalist, metal-look smart wearable for step tracking, sleep insights and convenient alerts.

## Long description

Colmi R03 smart ring in gold (size 9, inner diameter 18.9 mm) combines a lightweight titanium alloy design with daily health and activity monitoring. The ring pairs with the QRing app (Android, iOS, HarmonyOS) via Bluetooth 5.0 to display sleep, heart rate, SpO2 and activity data. It is water resistant to 5 ATM and comes with a magnetic-charging case and USB-C cable for convenient storage and recharging. The ring’s battery provides about 3–5 days of use; the charging case has a 200 mAh battery and can recharge the ring multiple times.
Advantages
The Colmi R03 offers continuous health monitoring with 24-hour heart rate tracking, sleep phase and quality analysis, and blood oxygen measurement. Sports and activity features include step counting, calorie and distance tracking, and 21 selectable sports modes. The device is lightweight (4.7 g), made of titanium alloy for corrosion resistance, and rated 5ATM for water resistance, allowing use during exercise and swimming. The included charging case extends operating time and stores the ring safely.
Key specifications
Manufacturer: Colmi
Model: R03
Color: Gold
Size / Inner diameter: 9 / 18.9 mm
Material: Titanium alloy
Weight: 4.7 g
Main chipset: BlueX Micro RF03
Memory: ROM 512 KB
Heart rate sensor: Vcare VC30F
Accelerometer: STK8321
Bluetooth: 5.0
Ring battery: Lithium-polymer, 15 mAh, magnetic charging, ~3–5 days runtime, charging time ~1 h, \>300 cycles
Charging case battery: Lithium-polymer, 200 mAh, USB-C charging, ~1 h charging time, ~300 cycles
Charging case dimensions: 43 x 43 x 25 mm
Compatibility: Android 4.4+; iOS 8.0+; HarmonyOS
App: QRing (generates daily, weekly, monthly reports)
Water resistance: 5ATM
Updates: OTA
Available app features: step counter, calorie counter, distance measurement, heart rate, sleep monitoring, 21 sports modes, exercise log, blood pressure, SpO2, stress level, remote photo
How to use
Install the QRing app on a compatible smartphone, enable Bluetooth, and pair the Colmi R03. Wear the ring on the finger that provides the most comfortable fit and ensure good contact with the skin for accurate measurements. Use the app to view real-time data, set exercise modes, and review daily, weekly and monthly reports. Place the ring into the magnetic charging case to recharge; the case itself charges via the included USB-C cable.
Recommendations
For best results, keep the ring and sensor area clean, wear the ring continuously for reliable sleep and heart rate tracking, and charge the case regularly so it can supply multiple recharges to the ring. Consult the app’s supported languages and settings to personalize alerts and measurement intervals.

## FAQ

### How much does the Smart ring Colmi R03 — size 9, gold finish cost, and is it available for purchase?

The price is 27.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 98 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/11108747/61795168_large.webp