COLMI i28 Ultra Smart Watch – A Complete Review, Features, and Buying Guide (2025 Edition)

The COLMI i28 Ultra Smart Watch is one of the most advanced and stylish smart watches in its category. Designed for everyday use, fitness tracking, business communication, and religious convenience, it offers a perfect balance between technology, performance, and comfort. If you are looking for a modern smart watch that combines beautiful design, powerful features, long battery life, and excellent value for money, the COLMI i28 Ultra is an ideal choice.

This detailed and professional guide will help you understand every aspect of the COLMI i28 Ultra Smart Watch—from its design and display to its battery performance, fitness features, Muslim prayer reminders, Bluetooth calling, waterproof rating, and app support. This content is fully optimized for search engines and suitable for publishing on Kopotakkho Electronics.



Overview of COLMI i28 Ultra Smart Watch

The COLMI i28 Ultra is built for users who want a premium experience without spending too much. It features a stunning 1.43-inch AMOLED display, a 260mAh lithium-polymer battery, an IP68 waterproof rating, advanced health sensors, and smooth connectivity through Bluetooth 5.3. The watch supports Android, iOS, and HarmonyOS, making it compatible with almost all modern smartphones.

One of the standout features of this watch is its Muslim Prayer Function, designed to remind users of accurate prayer times throughout the day. This makes the COLMI i28 Ultra especially useful for Muslim users who want to stay connected with their religious schedule while living a busy lifestyle.

The watch also supports Bluetooth calling, allowing you to make and receive calls directly from your wrist. Combined with fitness tools, sleep tracking, workout modes, stock market tracking, and a wide range of smart notifications, the i28 Ultra offers everything you need in one compact device.

Key Features of the COLMI i28 Ultra Smart Watch

  • 1.43-inch AMOLED Display

  • Muslim Prayer Reminder Function

  • Bluetooth Calling Support

  • 260mAh Battery Capacity

  • IP68 Waterproof Rating

  • High-Precision Heart Rate and SpO2 Sensors

  • Fitness Tracking & Workout Modes

  • Voice Assistant Support

  • Rich Collection of Watch Faces

  • Compatible with Android, iOS, HarmonyOS

Detailed Breakdown of Features

1. Stunning 1.43-Inch AMOLED Display

A smartwatch display plays a huge role in the user experience, and the COLMI i28 Ultra excels in this area. It offers a 1.43-inch AMOLED screen with a high resolution of 466×466 pixels. This provides:

  • Sharper images

  • Brighter colours

  • Deep blacks

  • Smooth animations

  • Better outdoor visibility

AMOLED screens are known for energy efficiency, allowing the watch to deliver long battery life without compromising on visual clarity. Whether you're reading messages, checking the weather, tracking workouts, or viewing prayer times, the display ensures everything looks clear and vibrant.

2. Muslim Prayer Function – Stay Connected to Your Faith

One of the most appreciated features of the COLMI i28 Ultra is its Muslim Prayer Reminder.

Key Benefits

  • Accurate prayer time reminders

  • Easy access to daily prayer schedule

  • Helps you maintain discipline in your religious routine

  • Useful for busy professionals, students, and travelers

This unique feature sets the i28 Ultra apart from many other smart watches in its price range. Users who value their religious commitments will find this function extremely convenient and reliable.

3. Bluetooth Calling – Convenient Communication on the Go

With Bluetooth 5.3, the COLMI i28 Ultra offers stable and clear Bluetooth calling. You can:

  • Make calls

  • Receive calls

  • Access call history

  • Sync contacts from your phone

  • Use the built-in microphone and speaker

This feature allows you to stay connected even when your phone is inside your pocket or bag. It is perfect for driving, exercising, cooking, or working.

4. Long-Lasting 260mAh Battery

The watch is powered by a 260mAh lithium-polymer battery with Seiko Y1 protection IC for better safety and efficiency.

Battery Performance

  • Charging Time: About 2 hours

  • Usage Time: 5 to 7 days

  • Standby Time: More than a week

For a smartwatch with AMOLED screen and Bluetooth calling, this battery performance is impressive. Whether you use it for fitness, notifications, or daily activities, the watch will easily last several days on a single charge.

5. IP68 Waterproof Rating – Built for Everyday Life

The IP68 waterproof rating ensures that the watch is protected from:

  • Sweat

  • Rain

  • Water splashes

  • Daily hand washing

Although it is not suitable for deep swimming or diving, it is safe for daily use, workouts, and outdoor activities. This makes the watch reliable for all weather conditions.

6. Advanced Health Monitoring Sensors

Health and fitness tracking is one of the core strengths of the COLMI i28 Ultra. It includes:

  • VC30F Heart Rate Sensor

  • SpO2 (Blood Oxygen) Sensor

  • Sleep Monitoring

  • Step Counter

  • Calorie Tracking

  • Sedentary Reminders

These sensors help you understand your health better and improve your lifestyle through consistent monitoring.

7. Fitness & Workout Modes

The COLMI i28 Ultra includes multiple workout options that track:

  • Distance

  • Speed

  • Heart Rate

  • Calories Burned

  • Workout Duration

This helps you stay active, monitor progress, and achieve fitness goals. Whether you're walking, jogging, cycling, or training in the gym, the watch provides accurate and valuable data.

8. COLMI Fit App – Full Control at Your Fingertips

The watch connects with the COLMI Fit App which is available for both Android and iOS. The app provides:

  • Multiple watch faces

  • Upload your own photos as watch faces

  • Sleep analysis

  • Fitness data

  • Smart notifications

  • Water drinking reminders

  • Gesture control

  • Alarm settings

  • Push notifications from social apps

Supported apps include:

  • Facebook

  • WhatsApp

  • Instagram

  • WeChat

  • Skype

  • Twitter

  • Kakao Talk

  • Line

  • And more

This ensures that you always receive important updates from your favourite applications.

9. Elegant and Durable Build Quality

Materials

  • Watch Body: Zinc Alloy + ABS + PC

  • Watch Strap: Soft Silicone

Dimensions

  • Watch Size: 43.5 × 43.4 × 11mm

  • Strap Width: 20mm

  • Colours Available: Black, Gold, Grey

The materials used make the watch strong, lightweight, durable, and comfortable to wear all day. Whether you are at work, at the gym, or attending a meeting, it suits all occasions.

10. Multilingual Support

The COLMI i28 Ultra supports a wide range of languages in both the watch interface and the app. This makes it user-friendly for people around the world.

Supported Watch Languages Include:

English, Chinese, Japanese, Korean, German, French, Spanish, Arabic, Russian, Italian, Dutch, Polish, Hungarian, Czech, Romanian, Indonesian, Thai, Turkish, Vietnamese, Hindi, and more.

Supported App Languages Include:

English, German, French, Arabic, Japanese, Korean, Russian, Portuguese, Spanish, Italian, Thai, Ukrainian, Slovak, Croatian, Turkish, Hungarian, Finnish, Swedish, and others.

Smart Watch Functions You Will Love

  • User Interface Customization

  • Voice Assistant

  • Heart Rate & SpO2 Measurement

  • Sleep Tracking

  • Physiological Cycle Tracking

  • Weather Updates

  • Stopwatch & Timer

  • Alarm Clock

  • Music Control

  • Calendar

  • Calculator

  • Phone Finder

  • Business Card

  • QR Code

  • Screen Time Settings

  • Password Lock

  • Power Saving Mode

  • Vibration Control

  • Multiple Menu Styles

These features make the watch a powerful everyday companion.

Who Should Buy the COLMI i28 Ultra Smart Watch?

This watch is perfect for:

  • Students

  • Office workers

  • Fitness lovers

  • Travelers

  • Muslims wanting prayer reminders

  • Business professionals wanting Bluetooth calling

  • Anyone looking for a premium-looking watch at an affordable price

Price of COLMI i28 Ultra Smart Watch in Bangladesh

The latest price of the COLMI i28 Ultra Smart Watch in Bangladesh is 3,650৳.
You can buy it from Kopotakkho Electronics at the best price available.

Warranty Information

The COLMI i28 Ultra Smart Watch comes with 6 Months of Warranty.

Final Verdict – Is the COLMI i28 Ultra Worth Buying?

Yes, absolutely.
The COLMI i28 Ultra Smart Watch is one of the best value-for-money smart watches available in the market today. It offers a premium AMOLED display, Bluetooth calling, accurate Muslim prayer reminders, long battery life, and strong health tracking. With stylish design and excellent app support, it delivers exceptional performance at an affordable price.