Technical sheet

Colmi I28 Ultra smartwatch

Name: Colmi I28 Ultra smartwatch
Brand: Colmi
SKU: 142020610
Price: 41 EUR
Availability: InStock
Rating: 4 (1 reviews)

Price without code 41

RRP:

You save:

Price without subscription

VAT & duties included

1 Reviews

24 Questions

No extra charges at delivery.

Size

Long

What is my size?

My virtual fitting room

Stringing

Unstrung

Tension

18 Kg
19 Kg
20 Kg
21 Kg
22 Kg
23 Kg
24 Kg
25 Kg
26 Kg
27 Kg
28 Kg
29 Kg
30 Kg
31 Kg
32 Kg
33 Kg
34 Kg
35 Kg
36 Kg

To adjust your bindings, type in the following informations:

(Customized items cannot be returned or exchanged)

It´s free!

(Customized items cannot be returned or exchanged)

Single purchase

Add to my pack

You save:

Buy now in 1 click

Back to PC configurator

Buy this product and earn

Color:

Free shipping

dto_trans discount on shipping

Free assembly

Free removal of old appliance (only with Ader)

Your interest-free financing from with Klarna Paypal

Pay in 3, 4, 6 or up to 12 installments

My virtual fitting room

Other colors available

Perfect pairings

Reportar error

Trusted by over 25 million satisfied customers worldwide

Official brand warranty

Quick & easy 30-day return

Features of Colmi I28 Ultra

Product description of Colmi I28 Ultra smartwatch

Description summary

Experience the COLMI I28 Ultra, a stunning AMOLED smartwatch for active adults. Its vibrant 1.43-inch Always-On display ensures crystal-clear visuals, while Bluetooth calling keeps you connected. Monitor your heart rate, SpO2, and sleep with advanced health tracking. Explore over 100 sports modes, enjoy IP68 waterproofing, and utilize the AI voice assistant. Elevate your fitness and daily life with this powerful, stylish companion

This device is unlocked from any phone company (factory unlocked).

COLMI I28 Ultra: The Ultimate AMOLED Smartwatch for Your Active Lifestyle

Elevate your daily routine with the COLMI I28 Ultra, a sophisticated smartwatch designed for the modern adult. Fusing cutting-edge technology with an exceptionally clear display, the I28 Ultra is your ultimate companion for connectivity, fitness, and holistic health management. Experience unparalleled visual clarity on its stunning 1.43-inch AMOLED screen, bringing your notifications, watch faces, and health data to life with vibrant color and deep blacks, even in bright sunlight. With the convenient Always-On Display feature, you can glance at the time and essential information without ever needing to raise your wrist or press a button.

Stay seamlessly connected to your world. The COLMI I28 Ultra features advanced Bluetooth calling, allowing you to answer, reject, and even make calls directly from your wrist. Whether you´re in a meeting, on a run, or have your hands full, you´ll never miss an important conversation again. Receive real-time notifications for messages, emails, and your favorite social media apps, keeping you in the loop without constantly checking your phone.

Take command of your well-being with a comprehensive suite of health monitoring tools. The I28 Ultra is equipped with an advanced optical sensor for precise, 24/7 wrist heart rate tracking, providing you with valuable insights into your cardiovascular health throughout the day and during workouts. Monitor your blood oxygen (SpO2) levels on-demand to better understand your body´s performance and recovery. At night, the detailed sleep tracking function analyzes your light, deep, and REM sleep stages, offering actionable data to help you improve your sleep quality and wake up refreshed.

Unleash your athletic potential with over 100 dedicated sports modes. From running and cycling to swimming and yoga, the COLMI I28 Ultra accurately tracks your activity, recording essential metrics like duration, distance, calories burned, and your heart rate zones. The robust IP68 waterproof rating ensures the watch can handle sweat, rain, and daily splashes, making it a reliable partner for any adventure. Further enhance your daily efficiency with the integrated AI voice assistant, music playback control, weather forecasts, and a vast library of customizable watch faces to match your style and mood.

Key Features:

* Brilliant 1.43-inch AMOLED Full-Screen Touch Display
* Energy-Efficient Always-On Display (AOD) Functionality
* Integrated High-Fidelity Speaker and Microphone for Bluetooth Calls
* Continuous 24/7 Wrist Heart Rate Monitoring
* On-Demand Blood Oxygen (SpO2) Measurement
* Comprehensive Sleep Quality Analysis
* Over 100 Professional Sports and Fitness Tracking Modes
* Smart Notifications for Calls, Texts, and Applications
* AI Voice Assistant for Hands-Free Control
* IP68 Waterproof for Daily Use and Sports
* Music Playback and Camera Remote Control
* Extensive Library of Customizable and Cloud-Based Watch Faces

Technical Specifications:

* Display: 1.43 inch AMOLED Screen
* Resolution: 466*466 pixels
* Main Chipset: Realtek RTL8763EWE-VP
* Connectivity: Bluetooth 5.0
* Battery Capacity: 260 mAh
* Typical Usage Battery Life: 5-7 days
* Waterproof Rating: IP68
* Compatibility: Android 5.0 or higher / iOS 9.0 or higher
* Application: FitCloudPro

Specifications

Manual

Technical specifications of Colmi I28 Ultra

Display Type

Amoled
Screen Size

1.43 Inch
Resolution

466*466 Pixels
Touchscreen

Full Screen Touch
Wireless Connectivity

Bluetooth 5.3
Battery Life

260mah
Water Resistance Rating

Ip68 Waterproof
Color

Golden
Age

Adult
Features

Wrist heart rate
Product Aspect

New

Features of Colmi I28 Ultra

Color Golden

Color

Golden

Age Adult

Age

Adult

Features Wrist heart rate

Features

Wrist heart rate

Product Aspect New

Product Aspect

New

Key differentiators

Features a vibrant 1.43-inch AMOLED always-on display for clear visibility.

Includes over 100 sports modes to track a wide variety of activities.

IP68 water-resistance rating ensures durability for daily use and sports.

Offers comprehensive health monitoring, including continuous heart rate, SpO2, and sleep stage tracking.

Supports Bluetooth calling and smart notifications directly from the watch.

Technology in Colmi I28 Ultra smartwatch

Energy rating

Warnings

/ 5

1 Reviews

What our customers are saying about Colmi I28 Ultra smartwatch

Write your review

Write a review about this product

Review headline

First Name

E-mail

Product rating

Write your review

0 / 1000

The text cannot exceed 1.000 characters.

Your review is too brief! To validate it and receive your CoINNs, please add more details about your experience with the product.

Incorrect please try again You’ve exceeded the allowed number of comments per product for earning CoINNs. Thank you for leaving your feedback!

I have read and accept the conditions contained in the Privacy Policy on processing of my data to manage my query or request

Your feedback is important to us, your review about this product will be revised by our experts and will be published within 5 working days. Please make sure that your review focus on the product and your experience with it, this will help other customers make more confident decisions. For any issues with an order, please contact us.

Tradeinn Retail Services as the data controller will process your data in order to respond to your query or request. You can access, rectify and delete your data, as well as exercise other rights by consulting the additional and detailed information on data protection in our Privacy Policy.

Send

Answer the question

Write your answer

Write your review

0 / 1000

The text cannot exceed 1.000 characters.

Thank you for answering the question and helping other customers, your CoINNs will be credited to your account once the answer is published. You can see the number of CoINNs accumulated on your account. Incorrect please try again

Send

The question has already been answered, thank you very much for trying to help another customer. We will count on you for future questions.

Include AI Generated questions and answers

2026-09-17

Generated by AI and verified

What are the main health monitoring features of the Colmi I28 Ultra smartwatch?

Answer of Generated by AI and verified

The Colmi I28 Ultra offers a comprehensive suite of health monitoring tools. It includes a continuous, 24/7 wrist-based heart rate monitor, an SpO2 sensor to measure blood oxygen levels, and detailed sleep tracking that analyzes your sleep stages.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

Can I make and receive phone calls on the Colmi I28 Ultra?

Answer of Generated by AI and verified

Yes, this smartwatch features Bluetooth calling, allowing you to manage calls directly from your wrist. You can also receive smart notifications for messages, emails, and social media apps.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

Does the Colmi I28 Ultra have a voice assistant?

Answer of Generated by AI and verified

Yes, the Colmi I28 Ultra is equipped with an AI voice assistant to help you with various tasks hands-free.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

Is the Colmi I28 Ultra smartwatch worth buying for fitness users?

Answer of Generated by AI and verified

The Colmi I28 Ultra is an excellent choice for fitness users, offering over 100 sports modes and advanced health monitoring features like heart rate and SpO2 tracking.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

What is the screen size and resolution of the Colmi I28 Ultra?

Answer of Generated by AI and verified

The Colmi I28 Ultra features a 1.43-inch AMOLED display with a resolution of 466x466 pixels.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

Is the Colmi I28 Ultra smartwatch waterproof?

Answer of Generated by AI and verified

Yes, the Colmi I28 Ultra has an IP68 water resistance rating, which means it is submersible and protected against dust and water ingress during activities like swimming in shallow water.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

How many sports modes does the Colmi I28 Ultra support?

Answer of Generated by AI and verified

The Colmi I28 Ultra supports over 100 different sports modes, allowing you to track a wide variety of fitness activities.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

What is the battery capacity of the Colmi I28 Ultra?

Answer of Generated by AI and verified

The Colmi I28 Ultra is equipped with a 260 mAh battery.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

What type of display does the Colmi I28 Ultra have?

Answer of Generated by AI and verified

The Colmi I28 Ultra is equipped with a vibrant AMOLED display, ensuring clear visuals.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

Is this smartwatch suitable for tracking my workouts?

Answer of Generated by AI and verified

Absolutely. With over 100 sports modes, continuous heart rate monitoring, and an SpO2 sensor, the Colmi I28 Ultra is well-equipped for advanced fitness and activity tracking.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

What phones are compatible with the Colmi I28 Ultra smartwatch?

Answer of Generated by AI and verified

The Colmi I28 Ultra is compatible with smartphones running Android 5.0 or higher and devices running iOS 9.0 or higher.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

How does the Colmi I28 Ultra connect to a smartphone?

Answer of Generated by AI and verified

This smartwatch connects to your phone via Bluetooth. It supports Bluetooth 5.0 and Bluetooth 5.3 for a stable connection.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

What are the main features of the Colmi I28 Ultra Smartwatch?

Answer of Generated by AI and verified

The Colmi I28 Ultra Smartwatch features a 1.43-inch AMOLED touchscreen display with a 466x466 pixel resolution. It offers comprehensive health tracking, including a continuous heart rate monitor, SpO2 sensor, and sleep tracking. You can also handle calls, receive smart notifications, and use the AI voice assistant directly from your wrist. The watch is compatible with both Android and iOS devices.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

How long does the battery last on the Colmi I28 Ultra?

Answer of Generated by AI and verified

The Colmi I28 Ultra Smartwatch offers a battery life of up to 7 days on a single charge, depending on usage.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

Can I make and receive phone calls with the Colmi I28 Ultra?

Answer of Generated by AI and verified

Yes, the Colmi I28 Ultra supports Bluetooth calling, allowing you to answer, reject, and make calls directly from the watch when it's connected to your smartphone.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

Is the Colmi I28 Ultra Smartwatch worth buying for fitness users?

Answer of Generated by AI and verified

The Colmi I28 Ultra Smartwatch offers advanced fitness tracking features, including heart rate monitoring and multiple sports modes, making it a valuable tool for fitness users.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

What type of display does the Colmi I28 Ultra have?

Answer of Generated by AI and verified

The Colmi I28 Ultra is equipped with a 1.43-inch AMOLED display, which provides vibrant colors and clear visuals. The screen resolution is 466x466 pixels.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

Is the Colmi I28 Ultra smartwatch waterproof?

Answer of Generated by AI and verified

Yes, the Colmi I28 Ultra has an IP68 water resistance rating, which means it is submersible and protected against dust and water ingress during activities like swimming in shallow water.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

What health monitoring features are included in the Colmi I28 Ultra?

Answer of Generated by AI and verified

This smartwatch includes a comprehensive suite of health monitoring tools. It features a continuous heart rate monitor, an SpO2 sensor to measure blood oxygen levels, and detailed sleep tracking that monitors sleep stages.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

Does the Colmi I28 Ultra have a built-in GPS?

Answer of Generated by AI and verified

No, the Colmi I28 Ultra does not have a built-in GPS. It can use your connected smartphone's GPS for tracking outdoor activities.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

Can I use the Colmi I28 Ultra for tracking workouts?

Answer of Generated by AI and verified

Yes, the watch is well-suited for tracking workouts. It includes over 100 sports modes, allowing you to monitor various activities like running, cycling, swimming, and yoga.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

Is this smartwatch suitable for both men and women?

Answer of Generated by AI and verified

Yes, the Colmi I28 Ultra is designed as a unisex product for adults, making it suitable for anyone.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

What phones are compatible with the Colmi I28 Ultra?

Answer of Generated by AI and verified

The Colmi I28 Ultra is compatible with smartphones running on both Android and iOS operating systems. You will need to download the 'FitCloudPro' application to sync the watch with your phone.

* Generated by AI based on customer and product data

2026-09-14

Generated by AI and verified

What kind of connectivity does the Colmi I28 Ultra use?

Answer of Generated by AI and verified

The Colmi I28 Ultra uses Bluetooth for wireless connectivity to your smartphone. The product specifications list both Bluetooth 5.0 and Bluetooth 5.3.

* Generated by AI based on customer and product data

Write your question

Ask a technical question about this product

Select

Question headline

First Name

E-mail

Write your question

0 / 1000

The text cannot exceed 1.000 characters.

Response from our expert

Incorrect please try again

Thank you for leaving your question about this product. We will reply to you by email as soon as possible. You’ve exceeded the allowed number of comments per product for earning CoINNs.

Still need help? Click “Send” and our expert will review your request again.

I have read and accept the conditions contained in the Privacy Policy on processing of my data to manage my query or request

Frequently bought together

Best sellers

Use cases

Daily Health and Fitness Tracking 90% Fit

This smartwatch is well-suited for beginners looking to monitor their daily activity and health. It offers continuous heart rate tracking and tracks various sleep stages, providing a great entry point into understanding personal wellness trends.

Continuous heart rate monitoring,Sleep stages tracking,SpO2 sensor

Multi-Sport Workout Monitoring 90% Fit

With a wide array of trackable activities, this watch is a practical choice for casual users who enjoy various sports. It allows you to easily log different types of workouts, from running to cycling, making it a versatile and affordable fitness companion.

Over 100 sports modes,IP68 water resistance,AMOLED display

Everyday Convenience and Connectivity 80% Fit

This watch serves as a convenient extension of your smartphone, allowing you to see notifications and control music without pulling out your phone. It's a great, affordable way to add smart features to your daily routine, compatible with both Android and iOS.

Smart notifications,Music controls,AI voice assistant,Bluetooth connectivity

Use During Water-Based Activities 75% Fit

Thanks to its IP68 rating, this watch can be worn during activities like swimming or in the shower without worry. It's a reliable choice for users who want a device that can handle everyday water exposure and track water-based exercises.

IP68 waterproof rating,Submersible design,Multiple sports modes

Best for

Best for Everyday Health Tracking

This smartwatch is ideal for those new to activity tracking, offering easy-to-use features like continuous heart rate monitoring, sleep tracking, and smart notifications to cover daily needs.

Based on: Health Monitoring Features, Seamless Smartphone Integration

Best for Affordable Smart Features

Offering a rich feature set including an AMOLED display, Bluetooth connectivity, and over 100 sports modes at an accessible price point, this watch delivers excellent value.

Based on: price: 40.99, Display type: amoled, Sports modes count: 100

Best for Stylish Tech Integration

With its vibrant 1.43-inch AMOLED display and smart features like an AI voice assistant and music controls, this watch combines modern technology with a sleek design.

Based on: display_type: amoled, Screen size inches: 1.43 inch, Ai voice assistant: yes, Music controls: yes

Best for Exploring New Activities

For those who love variety in their workouts, this watch provides over 100 sports modes, continuous heart rate monitoring, and SpO2 tracking to monitor performance across a wide range of activities.

Based on: Advanced Fitness Tracking, Sports modes count: 100, Heart rate monitor: yes, Spo2 sensor: yes

Benefits

FunctionalTrack a Wide Range of Activities

With 100 different sports modes, this smartwatch allows you to monitor a vast array of physical activities. It provides the tools to track your performance across various workouts, helping you stay on top of your fitness regimen.

Sports modes count: 100

FunctionalMonitor Key Health Metrics Around the Clock

Stay informed about your well-being with continuous heart rate monitoring and sleep stage tracking. The watch also includes an SpO2 sensor to measure blood oxygen levels, offering a more complete picture of your health.

Heart rate measurement mode: continuous

Sleep stages tracking: yes

Spo2 sensor: yes

Heart rate monitor: yes

FunctionalWear It Confidently in Various Conditions

Designed for an active lifestyle, this smartwatch features an IP68 waterproof rating, making it submersible. This provides reliability and peace of mind during workouts, daily wear, and exposure to water.

Water resistance rating: Ip68 Waterproof

FunctionalEnjoy a Vivid Display and Convenient Controls

Interact with a vibrant and clear 1.43-inch AMOLED display that brings your data to life. You can also control your music and use the AI voice assistant for a more convenient, hands-free experience.

Screen size inches: 1.43 inch

Music controls: yes

Ai voice assistant: yes

Ideal buyer profiles

The Fitness Fanatic

This user is dedicated to their fitness journey and seeks a device that can keep up with their varied and intense workout regimen. They want detailed metrics to track progress, optimize performance, and monitor their overall health.

With over 100 sports modes, the Colmi I28 Ultra is equipped to track nearly any activity. Its continuous heart rate monitoring, SpO2 sensor, and sleep stage analysis provide the in-depth health data this user needs to optimize their training and recovery. The IP68 water resistance rating ensures it can withstand sweat and the elements during workouts.

The Budget-Conscious Tech User

This individual wants the core features of a modern smartwatch—like a great display, notifications, and health tracking—without the premium price tag. They are savvy shoppers looking for the best value and functionality for their money.

The Colmi I28 Ultra offers a feature set that rivals more expensive models, including a vibrant 1.43-inch AMOLED display, Bluetooth calling, and smart notifications. It provides extensive health and fitness tracking, delivering exceptional value and functionality at an accessible price point.

The Casual User

This person is looking for a stylish and functional accessory that simplifies daily life and encourages healthier habits. They want a device that is easy to use, offers basic activity and health tracking, and integrates well with their smartphone.

This smartwatch is perfect for casual users, offering seamless smartphone integration with smart notifications and Bluetooth calling. Features like the AI voice assistant, music controls, and continuous heart rate and sleep tracking make it a convenient companion for managing daily tasks and staying mindful of personal wellness.

Competitive features

When comparing the Colmi I28 Ultra Smartwatch to its competitors, it's clear that the primary differentiators lie in the features detailed in its description, as the provided specification data shows minimal variation. All listed smartwatches fall within a very narrow price range, making feature sets the key deciding factor for potential buyers.

Where it excels

The Colmi I28 Ultra stands out with its vibrant 1.43-inch AMOLED Always-On display, a feature often found on more expensive models, offering superior visual clarity. It boasts a comprehensive suite of health and fitness tools, including heart rate, SpO2, and sleep monitoring, plus over 100 sports modes, catering well to fitness users. With IP68 water resistance, Bluetooth calling, and an AI voice assistant, the I28 Ultra provides a robust set of connectivity and convenience features for its price point.

Consider alternatives if...

Verdict

The Colmi I28 Ultra Smartwatch presents a strong value proposition. It combines a high-quality AMOLED display with extensive health tracking and smart features like Bluetooth calling, making it a compelling option for those seeking advanced functionality without a high price tag. While its competitors are similarly priced, the I28 Ultra's detailed feature set, including IP68 water resistance and a wide array of sports modes, makes it a standout choice for active and budget-conscious users.

Specs comparison

	Colmi I28 Ultra smartwatch	Colmi P71 Smartwatch	Colmi P76 Smartwatch	Colmi P81 Smartwatch	Colmi P86 Smartwatch	Colmi V89 Smartwatch
Water Resistance	ip68	ip68	3atm	ip68	ip67	ip67
Touchscreen	Yes	Yes	Yes	Yes	Yes	Yes
Screen Size Inches	1.4 inches	1.9 1.2 - 1.8	1.96 inches	1.9 inches	1.81 1.2 - 1.8	1.43 inches
Battery Life Days	6 days	7 days	-	5 days	7 days	5 hours
Sports Modes Count	100	140	multiple	100	100	100
Spo2 Sensor	Yes	Yes	Yes	Yes	Yes	Yes
Heart Rate Measurement Mode	continuous	continuous	continuous	-	continuous	continuous
Compatibility Os	5	4.4	-	5	Android 4.4 or higher, iOS 9.0 or higher	5
Sleep Stages Tracking	Yes	No	-	-	Yes	Yes
Resolution	466*466 pixels	240x284	240	240*284 Pixels	240x286	466x466
Smart Notifications	Yes	Yes	Yes	Yes	Yes	Yes
Music Controls	Yes	Yes	-	Yes	Yes	Yes
Type Of Home Diagnostic Monitor	smartwatch	smartwatch	Smartwatch	-	Smartwatch	smartwatch

Specs vs competitors

	Colmi I28 Ultra smartwatch	Aiwa Sw-a700 Smartwatch	Ecowatch Ew05 Smartwatch	Ecowatch Ew06 Smartwatch	No.1 Dt V9 Ultra 2 Smartwatch	Haylou Vibe Smartwatch
Water Resistance	ip68	ip68	5 Atm	5 ATM	ip68	ip68
Touchscreen	Yes	Yes	Yes	Yes	Yes	Yes
Screen Size Inches	1.4 inches	1.3 1.2 - 1.8	1.43 inches	1.43 inches	2.1 1.2 - 1.8	1.43 1.2 - 1.8
Battery Life Days	6 days	10 hours	21 days	14 days	-	7 hours
Sports Modes Count	100	4	24	-	-	100
Spo2 Sensor	Yes	Yes	Yes	Yes	Yes	Yes
Heart Rate Measurement Mode	continuous	continuous	continuous	continuous	continuous	continuous
Compatibility Os	5	Android 5.0 and above / iOS 9.0 and above	8	8	6	-
Sleep Stages Tracking	Yes	Yes	Yes	-	Yes	Yes
Resolution	466*466 pixels	240x240	466x466 px	466x466 pixels	420x485	466x466
Smart Notifications	Yes	Yes	Yes	Yes	Yes	-
Music Controls	Yes	Yes	Yes	Yes	-	Yes
Type Of Home Diagnostic Monitor	smartwatch	Smartwatch	Smartwatch	Smartwatch	smartwatch	smartwatch