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.
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.
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.
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.
Discussion (1)
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??