The Colmi C81 represents a significant upgrade from its predecessor, the Colmi C80, within the renowned Colmi C lineup. This smartwatch offers a compelling option for those seeking an affordable yet feature-rich smartwatch with an AMOLED display that bears a striking resemblance to the Apple Watch Ultra. With the ability to make calls and a full range of smartwatch functionalities, the C81 emerges as a top contender among budget-friendly smartwatches in the market, thanks in large part to its attractive price point and integrated features.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD

The smartwatch stands out in its price category, offering a remarkable upgrade in terms of hardware, software, and design compared to its competitors. The standout feature is its expansive 2.0-inch AMOLED screen, complemented by a host of essential functionalities including exclusive watch faces, comprehensive health and fitness tracking, a voice assistant, Bluetooth Call, and more. In essence, you’ll experience cutting-edge technology typically unavailable at such an affordable price point, all under $35. Let’s dive into the detailed review.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD

Colmi C81 Features

  • Making & Answer Calls via Bluetooth
  • 2.0 inch AMOLED Screen, 2 Always On Display
  • Lightweight & Design Similar to Apple Watch Ultra
  • 5 Days Battery Life, Magnetic Charging
  • 12 Watch Faces & 4 Menu Style
  • Heart Rate And Blood Pressure Monitor
  • Voice Assistant
  • Multi-Sport Modes
  • IP68 Waterproof
Colmi C81 Review: Flagship Features with AMOLED Display Support AOD

Design And Build Quality

The Colmi C81 impresses right out of the box with its sleek and stylish design. It clearly shares some features and design with the previous versions of the Colmi C series with some scattered differences inspired by the Apple Watch Ultra and is more similar to the Colmi C80. It runs the same operating system and works with the combination of a side crown button and a metal button on the side, On the opposite side it has a speaker and microphones to make calls. I can see it as one of the best budget original smartwatches. So the shape is as usual a square with a 2.0-inch screen and 2.5D curved glass in a metal frame with a brushed finish, giving it the look of an expensive watch, and it really is amazing.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD

And this is reflected in the build quality which is high and can be seen through the body, which is slim and light. Also, it brings a modern and elegant design that makes you want to wear it as an accessory not to mention its functionalities, despite being a budget smartwatch, the C81 feels sturdy yet comfortable, looks elegant, and gives a premium vibe with 50g, which makes it comfortable on the wrist.

The underside of the smartwatch is crafted from durable Zinc Alloy housing the sensor responsible for all health and fitness features. Additionally, it features the convenience of magnetic charging pins, enhancing its overall functionality and ease of use.

As for the colors of the watch, they meet your needs with a variety the same as the straps to complete the overall look of the watch, that’s why it is made of silicone, it’s lightweight and comfortable on your wrist for long-lasting use. And because it’s removable you can use any 22mm belt and is available in colors Black, Gold, and Orange.

Display Screen

The Colmi Series has placed significant emphasis on improving the most crucial aspect of a smartwatch—the display quality. I’m thrilled to report that the display on the Colmi C81 left a lasting impression, standing out as my personal favorite and one of the standout features of this smartwatch. Unlike many other smartwatches featuring LCD panels, the C81 distinguishes itself with its expansive and sleek display that minimizes bezels, offering an immersive viewing experience. With a stunning 2.0-inch AMOLED display, this smartwatch delivers crisp and vibrant imagery, thanks to its impressive specifications, including a high resolution of 410×502 pixels, a pixel density of 345 PPI, and a brightness of up to 1000 nits. The ultra-slim bezels increase the display area by approximately 10%, further enhancing the overall visual appeal.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD

But the marvels of the Colmi C81 don’t end there; its screen is truly a game-changer and a pivotal selling point. It elevates your smartwatch experience to a level previously unseen in budget devices, all thanks to its remarkable color accuracy and sharpness. The display is a visual treat, rendering images with clarity and richness that truly stand out. Even under the bright glare of direct sunlight, the C81’s screen shines, ensuring that you can effortlessly read notifications or monitor your health stats without the need to reach for your smartphone. Furthermore, the screen offers the added convenience of two always-on display dials, a feature I personally favor over others and hope to see more widely adopted in the future.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD

Multi Watch Faces

Colmi has gone to great lengths to curate a diverse selection of watch faces for the Colmi C81, building upon the success of the Colmi C80. As a result, you are treated to a collection of 12 distinct pre-installed watch faces, each designed to cater to different tastes and styles. Switching between these watch faces is a breeze, offering multiple options such as using the side button, performing a long press on the home screen, or accessing the FitCloudPro app.

If you crave even more variety, the Colmi C81 provides access to an extensive library of over 200 online watch faces available for download. These encompass a wide spectrum of designs, including various colors, retro styles, analog, 3D, and digital faces. Moreover, if you seek a truly personalized touch, you can use your own photos as a watch face background or select any wallpaper of your choice, allowing for endless customization possibilities. With such a wealth of options, you’ll undoubtedly find the perfect watch face to match your mood and outfit.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD


The Colmi C81 Smartwatch boasts an IP68 waterproof rating, signifying its ability to withstand sweat and occasional splashes of water. While this level of water resistance is ideal for everyday activities, it’s important to note that the watch is not designed for swimming. Exposing it to prolonged submersion or any type of hot water or salt water can potentially cause both short-term and long-term damage. Given that the watch features a speaker and a microphone, it’s advisable to err on the side of caution and avoid exposing it to water whenever possible.

However, in the event that the watch does come into contact with water, it’s recommended to take swift action. To prolong its lifespan and ensure optimal performance, it’s advisable to thoroughly dry the watch after any water exposure before attempting to use it again. By following these precautions, you can enjoy the Colmi C81 Smartwatch for an extended period without concerns about water-related damage.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD

Under The Hood

While the Colmi C81 may appear similar to its predecessor at first glance, there have been substantial changes under the hood, making it a more capable device. The most notable improvement is the adoption of the built-in Realtek RTL8763EWE-VP chip, which contributes to faster response speeds and more efficient data processing. Additionally, the device is equipped with 64MB of ROM storage, allowing you to store contacts, watch faces, notifications, and more. For health-conscious individuals, the Colmi C81 is equipped with a highly reliable Heart Rate Sensor. This sensor is renowned for its accuracy and provides valuable data to help you monitor your health and enhance your fitness routines.

In terms of connectivity, the smartwatch features the latest Bluetooth v5.0 chip, ensuring swift and stable connections. This means you won’t encounter any issues when it comes to staying in touch. The watch is compatible with Android 5.0 and later, as well as iOS 10.0 and above, and the connection is facilitated through the FitCloudPro app. However, it’s worth noting that the Colmi C81 does not include its own GPS sensor. Consequently, if you require location-based services, you will need to pair the watch with a smartphone to access GPS functionality. Despite this limitation, the watch’s overall performance and capabilities make it a worthwhile choice for those seeking a feature-rich and budget-friendly smartwatch.

AI Voice Assistant

The Colmi C81 is equipped with an advanced voice assistant algorithm that enables users to issue voice commands for specific tasks or inquiries. This feature adds a new dimension of convenience to the smartwatch experience. Moreover, the watch boasts an integrated speaker, facilitating two-way voice communication with the AI assistant. This seamless interaction not only enhances convenience but also ensures quick responses to your queries and commands.

How Do You Operate Colmi C81

The user interface of the Colmi C81 is intuitive and user-friendly, drawing inspiration from the Apple Watch’s design. Navigating through the watch’s menu and features is smooth and responsive. The quick access menu is a convenient feature, allowing users to control brightness, access music playback, and activate a flashlight quickly.

By swiping from the left, A split window will appear on the side with the time & date, Call Phone, Weather, and the last open applications.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD

The main menu can be accessed by clicking the side button, you will find heart rate and sleep monitoring, sports modes, settings, and other features that include capturing photos from the watch and music, weather, app store, voice assistant, menu styles, phone, and more. And it’s good that it also includes simple games. Also comes in 9 styles to choose from, We find Striped six-square grid, grid style, and more, Each one allows you to navigate the menu in a different fashion but all of them seem to work just fine. To change the menu style, you only have to double-click the scrolling wheel.

Health & Fitness Functions

The Colmi C81 is competitive in all aspects that a smartwatch mainly needs. Taking a look at the sports activities, it is clear that the company wanted to provide everything necessary to facilitate the end user.

With many types of exercise, the C81 is prepared for practically any type of exercise, from walking to cycling, through all winter sports, and those involving the use of the ball. By using the app, it is possible to explore the different options, finding in fact countless different activities. But the main factors, after all, are always the same and are suggested as follows: Outdoor Running, Cycling, Jumping Jack, Skipping, Badminton, Table Tennis, Tennis, Alpinism, Walking, Basketball, Football, Baseball, Cricket, Volleyball, Hockey, Rugby, Dancing, Yoga, Spinning Bike, Sit-ups, Indoor Running, Boating, Gymnastics, Swimming.

Apart from the sports features, to measure your ring progress throughout the day, the Colmi C81 records a vast array of health metrics. It tracks your steps, distance, resting, active energy, and 24/7 heart rate to check whether it’s beating normally. There’s also a SpO2 sensor for manual and blood-oxygen level tracking in the blood in real-time to improve the ability of the cardiovascular system to prevent the low level of oxygen in the blood that causes discomfort to a person’s body and sleep tracking to measure the quality of your slumber at night and wake time to provide you with an analysis of your sleep patterns.

Although it has a sensor that is more accurate than other sensors, this does not mean that the measurements provided by this smartwatch are completely accurate, as most of them are largely unreliable because it’s not a medical instrument, but it makes you very aware of your health and physical performance. unfortunately, this is often the case with watches in this price range.

How To Pair The Colmi C81

For you to enjoy the many benefits of your Colmi C81 Smartwatch, you would have to connect it to a support app. The recommended app is the FitCloudPro app which has loads of beneficial features to keep you fit and healthy, and it’s compatible with Android and iOS, so you would need to download it on your mobile phone. It is available on Google Play and App Store for both Android and iOS users.

For pairing, it’s easy to connect the C81 to your phone. After installing the FitCloudPro app and setup, all you have to do:

  • Step 1: The first thing to do is to go to your phone’s settings. Then, turn on your phone’s Bluetooth connection, and add the device. Two options add a device, search, or scan a QR code.
  • Step 2: Next, you would need to Sign up for a FitCloudPro account. Or, Log in to your existing account (if you already have an account).
  • Step 3: Allow all notification data. A notification interface will pop up requesting your permission to allow the app access to certain functions on your mobile phone. (Denying any of these permission requests might prevent FitCloudPro from working properly).

After downloading, launch the application and set permissions. Next, add your Smartwatch device and connect it to the app. Lastly, set your Personalization Options and settings. When all this is done, it will communicate directly and without any complications, with automatic setting of time and language, weather, in addition to a phone call feature, and update the smartwatch software if available.

FitCloudPro App For Colmi C81

The Colmi C81 smartwatch works in concert with the FitCloudPro app which expands the things you can do with the smartwatch by adding a lot of features, first, the app has a health menu where it displays all the data collected by the smartwatch such as the steps walked today, your daily goal, the number of calories burnt and the distance traveled, you can click on the label to expand it to show you more information on broader time frames such as the weekly and the monthly, right underneath we find the sleep monitoring label, we click on it to expand and it will show us light and deep sleep information, total sleep and awake time and the collected data from a week or a month, all displayed in a nice graph. It also has the heart rate and blood pressure, each one has its very own label to click and expand then you can either start measuring or check the previously collected data.

Bluetooth Calling Function On Colmi C81

The Colmi C81 stands out from the crowd by offering a seamless calling experience. While many smartwatches merely notify you of incoming calls, this watch takes it a step further – it allows you to answer your smartphone calls directly from your wrist. All you need to do is sync your smartphone with the watch via Bluetooth 5.0, and when a call comes in, a button will appear on the watch’s screen. Simply tap it to answer the call. What sets the C81 apart is its integrated microphone and speaker. The microphone delivers remarkably clear sound, even in noisy environments like on the road, ensuring that your calls are audible and clear.

To enhance efficiency further, the smartwatch lets you save your important and frequently-called contacts, eliminating the need to sift through a lengthy contact list when you’re in a hurry. Additionally, it features a dial pad that enables you to make calls quickly and conveniently. With these calling capabilities, the Colmi C81 offers a practical solution for staying connected while on the go.

Notifications & Messages

The Colmi C81 ensures that you stay informed and connected throughout the day by providing clear and easily readable notifications. When paired with your smartphone, this smartwatch seamlessly syncs with it to display incoming calls, messages, and notifications from popular social media platforms like Facebook, WhatsApp, and Twitter, as well as other applications. With the C81 on your wrist, you won’t miss out on important messages or updates.

Battery Life & Charging Time

Battery life is a crucial consideration for any smartwatch, and the Colmi C81 doesn’t disappoint in this regard. With a robust 250mAh battery, it boasts one of the largest capacities in its price range. The battery life of the C81 is impressive, especially when compared to other budget smartwatches. In typical use, you can expect it to last for up to 3-4 days with the “Always On” feature disabled, and even in heavy usage scenarios, it offers a respectable 2 days of usage on a single charge. The magnetic charger makes recharging a hassle-free process and Charging the watch to full capacity is a relatively quick process, taking approximately two hours.

Final verdict

In conclusion, the Colmi C81 smartwatch presents a compelling package of features and performance. Its design, high-resolution display, and overall performance are commendable. With its reliable battery life, extensive customization options, and seamless FitCloud Pro integration. The device performs admirably across various aspects, including health and fitness tracking, call management, and user interface responsiveness, So, the C81 is a strong contender for those seeking a premium smartwatch experience.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD

Balancing style and substance, this smartwatch offers an attractive proposition for Smartwatches consumers looking to enhance their wearable technology arsenal. As with any product, individual preferences and priorities will ultimately determine whether the C81 is the right fit for you. Thank you for joining us on this detailed journey through the Colmi C81 smartwatch, and until next time.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD

Colmi C81 Price And Where To Buy

The Colmi C81 Smartwatch is currently available on the Colmi AliExpress Store for a very good price So, don’t miss out on this great deal. To view its price or buy it, you can access the offer by clicking on the store icon.

Colmi C81 Review: Flagship Features with AMOLED Display Support AOD