Colmi R06
Our editorial rating is based on product testing.
- Affordable ring
- Sleep and SpO2 monitoring
- Mobile app in Czech and Slovak
- Low weight
- Sometimes inaccurate time-to-fall-asleep measurement
- Imprecise translation of some items in the app
- Lower resistance to scratches
The smart device segment has recently expanded with extremely popular smart rings. This technology is also—right now—already reasonably priced, which is proven by our model of the day, Colmi R06.
In particular, it’s already another iteration of a cheap smart ring that offers an improved Bluetooth technology and a newer chip for monitoring your activities, compared to its predecessor.
In our review, we’ll cover all the features of this Colmi model, we’ll also introduce the QRING mobile app, and we’ll share our personal experience from everyday use.
Where to buy COLMI R06?
You can find the smart ring marked Colmi R06 on the well-known online marketplace Aliexpress.com. On our site we also offer you a great discount coupon that you can use in your cart. Plus, you’ll love the fast delivery from China—in just 2 – 3 weeks!
Colmi R06
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 duty charge of approximately 3,70 € per order to your cart. When you receive the shipment, you won’t have to pay anything extra.
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 duty charge of approximately 3,70 € per order to your cart. When you receive the shipment, you won’t have to pay anything extra.
Here are the technical specs:
| Model | Colmi R06 |
|---|---|
Size | 8/9/10/11/12 |
Enhanced durability | yes; 5ATM |
Surface coating | matte plastic |
Monitoring | yes; step counting; calories; SpO2; distance; heart rate; sleep and sports activities |
Mobile app | yes; QRing |
Bluetooth | 5.0 |
Battery life | 3-5 days; with a charging case for approx. 15-18 days |
Charging | magnetic USB-A pins; USB-C charging case |
What’s in the box: Great accessories!
Colmi builds on a compact box that contains the smart ring itself Colmi R06, in the selected size, and sealed. It’s also placed directly in the protective and charging case, which is included in the package as well. You’ll also find a charging cable with a USB-C connector, along with a brief user manual in English.
When you buy, you can also choose the version without the charging case. However, according to the seller’s reviews, the magnetic charging cable is rather weak and often falls out. That’s why we recommend choosing our slightly more expensive version, including the charging case.
An important piece of information is choosing the right size. Colmi doesn’t offer any size set for trying on (a “sizing kit”). The seller provides a size table of four to five sizes, including the inner circumference and ring diameter. So the choice comes down to measuring it correctly from your side.
From our experience, the sizes are fairly well spaced, and our size 12 (i.e., 21,6 mm / 67,8 mm) can be comfortably worn on both your middle and ring finger.
Design and build quality: matte finish and a plastic body
The ring has a very lightweight body, weighing only 4,4 grams—so you barely notice it on your hand. Wearing it long-term, sports activities (except racket sports), and even sleeping with the ring are no problem.
Credit goes mainly to the plastic design of the structure, which on the outside is covered with a layer of matte black paint. It’s also patterned, and looks elegant—it definitely feels more expensive than the final price of the ring. However, it’s prone to scratches, especially when it comes into contact with metal surfaces. On the other hand, it offers increased resistance to water and dust, with certification of 5ATM.
The inside of the ring is transparent, which will definitely please every tech fan. Besides a magnetic charging port, you’ll also find a chip for activity monitoring marked BlueX Micro RF03.
This chip has a pretty noticeable green LED when measuring, so we recommend a size that fits your finger accurately, so the LED won’t bother you at night. There’s also a red LED that signals charging.
Sleep and sports activity monitoring
The ring’s form factor makes it ideal as a compact device for either one specific activity—such as mobile payments—or for comprehensive activity monitoring for 24 hours per day and 7 days per week. Colmi went with the second option. So it’s a fitness accessory for tracking your movement or sleep. And unlike smart bracelets, it doesn’t support card payments.
First and foremost, we have to mention the daily and constant monitoring of steps, distance, and calories burned. Heart-rate monitoring is tied in as well. Other features include tracking the amount of oxygen in your blood (SpO2 monitoring; it slightly reduces battery life), as well as sports activity monitoring (about 20 sports to choose from), and sleep monitoring with phase evaluation, wake-up statistics, and a final score.
Activity tracking is fairly accurate, and the step count matches the steps on smart watches and on your smartphone (deviation +/- 5%). We also really liked the sleep monitoring. However, it’s important to point out that the ring doesn’t always correctly record your time to fall asleep, which sometimes runs longer than reality.
On the other hand, it evaluated your night wake-ups accurately. Again, when compared to a smart bracelet, the integrated RF03 chip that handles this monitoring reminded us of results measured on cheaper smart bracelets, for example Xiaomi Smart Band 7.
Mobile app: QRing app also in Slovak
With a smart ring, you don’t get a display or any other information panel. The product itself, in our case Colmi R06, is therefore only as good as its software, which connects to it directly from the manufacturer.
The connection to your smartphone is handled by the QRing mobile app, available for both iOS and Android. The app is truly easy to set up, and it doesn’t require any user account—just enter the basic attributes like gender, height, weight, or your exercise goal, calories burned, and so on.
The ring connects via Bluetooth 5.0 and has a range of approx. 10 meters. If you move away by chance or close the app, your data syncs immediately when you connect again. Another advantage is that the app supports Czech and Slovak—though the translation isn’t completely perfect, it’s enough to understand the data (e.g., the number of kilometers walked is shown as the number of driven kilometers, etc.).
The app has a nice interface and consists of four pages. The first one shows ongoing statistics—your data—with an evaluation of both the amount of exercise you’ve done and its quality. On the next page, you’ll find an overview of steps and calories burned, including history in the form of a calendar.
On the third page, you’ll find all the data related to your sleep quality. You can see a chart of falling asleep, waking up, REM phases, deep sleep phases, and more. You’ll also find a calendar with your sleep score. If you don’t see all the details right after the first time you turn it on, don’t worry. The manufacturer’s software algorithm needs continuous monitoring for 7 days to evaluate certain statistics. Only then will it add the data to the app.
The final part also includes an overview of the hardware itself. Here you’ll find the Bluetooth address of the ring, the battery level, with the option to get notified about low battery, as well as other settings. You can also link the ring to Apple Health, as well as Google Fit, depending on the version of your app.
Here you can also turn on or off all-day heart-rate monitoring, HRV monitoring, or SpO2 monitoring. There’s also a field for updating the software, and if needed, options for restarting or restoring the device. Considering the product price, the app is a pleasant surprise.
Battery life and charging case: 3 days on one charge and USB-C
The Colmi manufacturer guarantees battery life on a single charge at the level of 3 – 5 days. We can confirm this value too, and even with SpO2 monitoring, plus tracking activities for an hour per day (e.g. a walk or active running), we recorded an energy drop of about 30 – 40% per day.
If you use the basic version, after three days you’ll get fairly fast charging (approx. 60 minutes) via a USB-A cable, but it has a fairly weak magnet—so you’ll need to make sure the ring’s position is correct during charging.
Here comes an extra special benefit in the form of a compact charging case. It’s smaller than, for example, with headphones, yet it includes a battery for additional 10 charges. It also has a USB-C connector, so even during active use and charging, every 3 day you’ll be able to charge the charging case only about once a month. We really rate that positively.
Final verdict: COLMI R06
Colmi R06 is a great-value and affordable smart ring that’s suitable as your first product in this category if you want to try it out, for example. It has a lightweight body and a mobile app translated into Czech. However, we’d compare its features and measurement accuracy to chips found in cheaper smart bracelets.
So if you can live with a few compromises, or you don’t really like sports or sleeping with a watch on your wrist, we definitely recommend buying it.
Colmi R06
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 duty charge of approximately 3,70 € per order to your cart. When you receive the shipment, you won’t have to pay anything extra.
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 duty charge of approximately 3,70 € per order to your cart. When you receive the shipment, you won’t have to pay anything extra.
However, we recommend choosing the configuration that includes the charging case. It’s more expensive, but it’s practical—and charging like this using the accessory will feel quite natural, especially if you already use true-wireless earbuds.
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