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Smart ring Colmi R06 for a record-low €12! We tested it ourselves: 5ATM durability and it tracks sleep as well as sports activities

4. November 2025 3 min read 1 comment
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Colmi is an ambitious Chinese brand that makes affordable wearables, such as this smart ring Colmi R06, right in the box, also including a charging case!

The best price so far, even for the charging case

You can buy the affordable smart ring Colmi R06 on the well-known online marketplace Aliexpress.com. You can choose a version that also includes a charging case, as well as 5 sizes – from size 8 to 12. Delivery from China takes about 9-14 business days.

ChinaPlanet deal

Colmi R06

Colmi R06
19,64 €You save 7,52 €
12,12 €

Price history

3,41 €cheaper than the average price
Cheapest 12,12 €Most expensive 18,61 €
Are you shopping on AliExpress for the first time? See the guide!
Updated 4. 11. 2025 at 14:17
TIP15-day delivery via Aliexpress Standard Shipping

For this product, Aliexpress Standard Shipping is available with guaranteed delivery within 15 days. It’s the most reliable delivery method and, in most cases, it’s handled by a courier company. The 15-day delivery is something we actually tested.

When you order from a Chinese warehouse, AliExpress adds a customs fee to your cart of about €3,70 per order. When you receive the package, you don’t pay anything extra.

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Are you shopping on AliExpress for the first time?

The process is via the AliExpress mobile app, where most people shop. There are two key things: don’t use Buy now and enter the coupon only in the order summary, in the field Promo code. After you click Pay now, you won’t be able to add it.

  1. Copy the code and click Use discountIn our article, copy the coupon and click the button GET DISCOUNT. The link will take you directly to the product in the AliExpress app.
  2. Use Add to cart instead of Buy nowOn the product card, scroll down and tap Add to cart. Don’t use the Buy now button—you’ll skip the cart, and later you won’t have anywhere to enter the coupon. Before that, double-check the variant: the color, the version, and whether it ships from an EU warehouse.
  3. Through the cart, go to CheckoutA pop-up will appear: Added to cart! — tap Check it out in it. If it disappeared, open the cart with the icon at the bottom right. In the cart, check the product and quantity, then click the red Checkout. Only the items marked with the red ring will be applied.
  4. Enter your address and card, then look for Promo codeIn the order summary, first fill in the delivery address and payment card at the top. Below them there’s a line Promo code — expand it with the arrow on the right.
    Riadok Promo code v zhrnutí objednávky v aplikácii AliExpress
    Look for this line under the address and payment method.
  5. Paste the code and confirm ApplyIn the field Promo code paste the copied code and click the black Apply. The code is case-sensitive and must not contain spaces.
    Políčko Promo code s kódom a tlačidlom Apply v aplikácii AliExpress
    Paste the code into the field and confirm with the Apply button.
  6. Check the savings and payIn the Summary expand the line Saved — you’ll see the applied coupon there as AliExpress coupons/codes. Only when Total is really lower, click Pay now.
    Riadok Saved s uplatneným kupónom a znížený Total v aplikácii AliExpress
    The applied coupon will appear in the Saved line and will reduce the Total.
Apply the discount already at the order summary. After you click Pay now, you can no longer add a coupon. If Apply shows an error, the code has either expired, doesn’t apply to your items, or the order doesn’t meet the minimum amount.
The Store Coupon also goes in the same field. — a coupon from the seller itself, which isn’t always available and changes from day to day. AliExpress coupons can’t be combined, so try both and go with the one that gives you more. Coins are added automatically.

Read our review

Colmi R06: Sleep tracking, sports, and a mobile app

The Colmi R06 smart ring is sold in three different surface finishes. The outer structure uses a metal alloy material, but it is also covered with a colored layer. All of them are matte, and especially on the black version you’ll also notice the pattern in the center of the ring. On the inside you’ll find measurement sensors, as well as magnetic charging pins.

When it comes to choosing the right size, the manufacturer does not produce any “sizing kit”. It recommends measuring the outer and inner diameters yourself, then comparing them with the size chart available for five different sizes. Another big advantage is the low weight, at just 4.4 grams.

Monitoring functions include measuring the number of steps and calories. The ring also measures your heart rate, 24 hours a day, your stress level, SpO2 monitoring of the amount of oxygen in your blood, and even sleep quality, including recognition of different sleep phases.

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Bluetooth 5.0, up to 5 days battery life, and a charging case

You can also track sports activities. You can view your results, as well as statistics from the last few days, in the clear app QRing, from the manufacturer. The main chip is labeled BlueX Micro RF03. It is complemented by wireless connectivity in the form of Bluetooth 5.0. It also includes enhanced water resistance with a 5ATM certification.

The ring contains a 15 mAh battery for sizes 8 and 9. Larger sizes 10, 11, and 12 include an increased battery capacity of 18 mAh. Battery life per charge is 3 – 5 days, and the charging case supports 7 – 10 more charges.

The retail package includes the smart ring itself Colmi R06 in the selected size and color finish, as well as a charging case customized with an integrated battery. There’s also a charging cable with a magnetic pin, a brief user manual, and the first device connection, as usual, in English.

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Discussion (1)

Comments are approved by the editorial team before publishing — yours will usually appear within a few hours.

Miro · 20 November 2024

Hi, I have normal average fingers; my circumference is 74 mm. Am I making some kind of mistake, or don’t I understand the chart??

Reply