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header-product Smart ring Colmi R03 20.3mm size 11 Black
22.99 €

Smart ring Colmi R03 20.3mm size 11 Black

Smart ring Colmi R03 size 11 Black Photo 1
Smart ring Colmi R03 size 11 Black Photo 2
Smart ring Colmi R03 size 11 Black Photo 3
Smart ring Colmi R03 size 11 Black Photo 4
Smart ring Colmi R03 size 11 Black Photo 5
Smart ring Colmi R03 size 11 Black Photo 6
Smart ring Colmi R03 size 11 Black Photo 1
Smart ring Colmi R03 size 11 Black Photo 2
Smart ring Colmi R03 size 11 Black Photo 3
Smart ring Colmi R03 size 11 Black Photo 4
Smart ring Colmi R03 size 11 Black Photo 5
Smart ring Colmi R03 size 11 Black Photo 6
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Sale OUT! Discount 16%

You save: 4.50 €

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Smart ring Colmi R03 20.3mm size 11 Black

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Smart ring Colmi R03 20.3mm size 11 Black

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Usual Price: 27.49 €
Your Price:
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The discount is valid from 11.06.2026 to 11.07.2026

Short description

Colmi R03 is a smart ring with a 20.3 mm inner diameter in size 11, finished in black. Designed for wearable health and notification monitoring, it pairs with compatible smartphones to provide discreet alerts, activity and sleep tracking, and basic biometric data depending on app support. Lightweight and compact, it suits users who prefer minimal wearable devices and want continuous on-finger monitoring.
Available at price 22.99 €: 45 pcs.
Total available for order: 90 pcs.
Warranty: 1 Year
SKU: 11108744
Manufacturer: Colmi
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
09.07.2026 {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
14.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.10 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
14.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

Colmi R03 smart ring (20.3 mm, size 11) in black is a compact wearable for continuous on-finger health and activity tracking. Lightweight (4.7 g) and made of titanium alloy, the ring connects via Bluetooth 5.0 to the QRing app (Android, iOS, Harmony OS) to display measurements, activity reports and notifications. The device is water resistant to 5ATM, comes with a magnetic-charging case and USB-C cable, and provides several days of operation between charges.

Advantages

The Colmi R03 offers continuous heart rate monitoring, blood oxygen (SpO2) measurement, and sleep tracking with phase analysis, all visible in the QRing app. It records steps, distance and calories, supports 21 sports modes and generates daily, weekly and monthly reports. Durable titanium-alloy construction, 5ATM water resistance and a lightweight 4.7 g design support comfortable daily use. The charging case extends runtime by allowing up to 13 recharges of the ring on a single case charge.

Suitable for

  • Users who prefer minimal and discreet wearables
  • People tracking daily activity: steps, distance and calories
  • Those monitoring sleep quality and heart rate trends
  • Swimmers and users who need water-resistant wearables (5ATM)
  • Owners of Android 4.4+/iOS 8.0+/Harmony OS devices using the QRing app

Key specifications

  • Manufacturer: Colmi
  • Model: R03
  • Color: Black
  • Size / Inner diameter: 11 / 20.3 mm
  • Material: Titanium alloy
  • Weight: 4.7 g
  • Main chipset: BlueX Micro RF03
  • Memory: ROM 512 KB
  • HR sensor: Vcare VC30F
  • Accelerometer: STK8321
  • Bluetooth: 5.0
  • Ring battery: 18 mAh lithium‑polymer, magnetic charging, ~1 h charge time, 5–7 days runtime
  • Charging case battery: 200 mAh lithium‑polymer, USB‑C charging, ~1 h charge time, recharges ring up to 13 times
  • Number of charging cycles (ring & case): ≈300+
  • Water resistance: 5ATM
  • Compatibility: Android 4.4 or later, iOS 8.0 or later, Harmony OS
  • App: QRing
  • Available app features: step counter, calorie counter, distance, 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 (Android, iOS or Harmony OS), enable Bluetooth and pair the Colmi R03. Wear the ring on a finger with a comfortable fit and allow the app to access required permissions for sensors and notifications. Use the app to view real‑time measurements, activity logs and generated reports. Charge the ring magnetically in the provided charging case and connect the case to power via the included USB‑C cable when the case battery needs recharging.

Usage recommendations

For accurate biometric readings, wear the ring snugly on a stable finger position, keep sensors clean, and ensure the QRing app is updated via OTA. Avoid exposing the ring to strong chemicals or extreme temperatures; 5ATM water resistance allows swimming but not prolonged high‑pressure water exposure. Charge the case regularly to maintain the ring’s extended runtime.

Description

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Stock data
Warehouse Stock Delivery to the store Store Price
WH130 45 09.07.2026 Best delivery
Discount 16%
22.99 € Best price
WH357 45 15.07.2026 36.99 €
Discount 16%
22.99 €
Stock: 45
Delivery Date: 09.07.2026 Best delivery
Warehouse: WH130
36.99 €
Stock: 45
Delivery Date: 15.07.2026
Warehouse: WH357

Customer reviews

Customer questions

FAQ

How much does the Smart ring Colmi R03 size 11 Black cost, and is it available for purchase?

The price is 22.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 90 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.