{{ totalProductsCount }}

In cart {{totalProductsCount}} item(s)

Total:
{{sum | formatAmount}}

Your cart is empty

header-product Smart ring Colmi R03 20.3 mm size 11 Gold — Colmi R03 smart ring, 20.3 mm, size 11, gold finish
27.99 €

Smart ring Colmi R03 20.3 mm size 11 Gold — Colmi R03 smart ring, 20.3 mm, size 11, gold finish

Smart ring Colmi R03 Gold 20.3 mm size 11 Photo 1
Smart ring Colmi R03 Gold 20.3 mm size 11 Photo 2
Smart ring Colmi R03 Gold 20.3 mm size 11 Photo 3
Smart ring Colmi R03 Gold 20.3 mm size 11 Photo 4
Smart ring Colmi R03 Gold 20.3 mm size 11 Photo 5
Smart ring Colmi R03 Gold 20.3 mm size 11 Photo 1
Smart ring Colmi R03 Gold 20.3 mm size 11 Photo 2
Smart ring Colmi R03 Gold 20.3 mm size 11 Photo 3
Smart ring Colmi R03 Gold 20.3 mm size 11 Photo 4
Smart ring Colmi R03 Gold 20.3 mm size 11 Photo 5
payment

Sale OUT! Discount 5%

You save: 1.50 €

Keep track of price changes You keep track of price changes
Watch the price drop

Leave your address - as soon as the price of the product goes down, you'll know about it right away

You keep track of price changes

Smart ring Colmi R03 20.3 mm size 11 Gold — Colmi R03 smart ring, 20.3 mm, size 11, gold finish

{{email}}
You keep track of price changes

Smart ring Colmi R03 20.3 mm size 11 Gold — Colmi R03 smart ring, 20.3 mm, size 11, gold finish

{{email}}
Usual Price: 29.49 €
Your Price:
{{selectedOffer.price | formatAmount}}
The discount is valid from 03.06.2026 to 03.07.2026

Short description

Colmi R03 is a smart ring in gold finish with a 20.3 mm internal diameter corresponding to size 11. Designed for wearable convenience, it provides compact on-finger smart functionality. Suitable for daily use, the ring integrates with compatible devices for notifications, activity tracking, or quick control actions, offering a discreet alternative to wrist wear.
Available at price 27.99 €: 32 pcs.
Total available for order: 64 pcs.
Warranty: 1 Year
SKU: 11108749
Manufacturer: Colmi
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

{{selectedOffer.parcelStationDeliveryString}}

Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
09.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
14.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
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 €
payment
Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
Together cheaper
{{product.price | formatAmount}}
{{product.title}}
{{productBundle.reference.specialPrice | formatAmount}}
{{productBundle.title}}
{{productBundlePreviousPrice | formatAmount}}
{{productBundleSpecialPrice | formatAmount}}

You saving {{productBundleYouSave | formatAmount}}

Product information

Description

Colmi R03 is a smart ring with a 20.3 mm inner diameter (size 11) and a gold finish. Made from a titanium alloy and weighing 4.7 g, the ring integrates heart rate, blood oxygen and sleep monitoring with activity tracking. It pairs with the QRing app (Android and iOS) via Bluetooth 5.0 and offers water resistance to 5ATM. The package includes the smart ring, a USB-C cable, a magnetic charging case and a user manual.

Advantages

The Colmi R03 combines a compact, lightweight titanium-alloy design with continuous health monitoring and multi-day battery life. It supports heart rate and SpO2 measurements, sleep phase analysis and 21 sports modes while providing water resistance for everyday wear and swimming. The included charging case extends the ring’s operating time by allowing multiple recharges on the go.

Suitable for

  • Daily health monitoring (heart rate, blood oxygen, sleep)
  • Activity tracking and workout logging
  • Swimming and water-based activities (5ATM)
  • Users preferring discreet on-finger wearable devices

Key specifications

  • Inner diameter: 20.3 mm (size 11)
  • Material: titanium alloy
  • Weight: 4.7 g
  • Bluetooth: 5.0
  • Heart-rate sensor: Vcare VC30F
  • Accelerometer: STK8321
  • Memory: ROM 512 KB
  • Ring battery: lithium‑polymer, 18 mAh, magnetic charging, ~5–7 days operating time
  • Charging case battery: lithium‑polymer, 200 mAh, USB‑C, charges the ring multiple times
  • Charging time (ring): about 1 hour
  • Number of charging cycles (ring): over 300
  • Water resistance: 5ATM
  • Compatibility: Android 4.4 or later, iOS 8.0 or later, HarmonyOS
  • App: QRing (generates daily, weekly and monthly reports)

How to use

Install the QRing app on a compatible Android or iOS device and pair the Colmi R03 via Bluetooth 5.0. Wear the ring on a finger with a comfortable fit; the inner diameter is 20.3 mm (size 11). Use the app to view continuous heart rate, blood oxygen and sleep data, select sports modes, and review activity reports. To recharge, place the ring in the magnetic charging case or connect the case to power via the included USB‑C cable.

Usage recommendations

For best measurement accuracy, wear the ring snugly but not too tight, keep the sensor area clean, and sync with the QRing app regularly. Avoid exposing the ring to strong chemicals or extreme temperatures despite its 5ATM water resistance.

Description

Machine translation. Load original

Similar products

{{product.title}} Show details Hide details

{{highlightedFeature.featureTitle}}:

{{getProductFeatureValueById(product, highlightedFeature.featureId)}}

{{product.price | formatAmount}}
Might be useful
{{product.manufacturerName}}
{{product.categoryName}}
{{product.title}}
{{product.specialPrice}}
{{product.price}}
Stock data
Warehouse Stock Delivery to the store Store Price
WH130 32 09.07.2026 Best delivery
Discount 5%
27.99 € Best price
WH357 32 15.07.2026 30.49 €
Discount 5%
27.99 €
Stock: 32
Delivery Date: 09.07.2026 Best delivery
Warehouse: WH130
30.49 €
Stock: 32
Delivery Date: 15.07.2026
Warehouse: WH357

Customer reviews

Customer questions

FAQ

How much does the Smart ring Colmi R03 Gold 20.3 mm size 11 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 — 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. 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.
shipping
Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
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.