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Colmi i28 Ultra Smartwatch with Heart Rate Monitor (Black)
Smartwatches

Colmi i28 Ultra Smartwatch with Heart Rate Monitor (Black)

Your Health, Our Priority

Track your activities, exercise routines, and sleep. Closely monitor your heart rate, blood pressure, and SpO2 levels to ensure you're always in optimal condition. The cycle...

Your Health, Our Priority

Track your activities, exercise routines, and sleep. Closely monitor your heart rate, blood pressure, and SpO2 levels to ensure you're always in optimal condition. The cycle tracking feature provides valuable insights into your health.

Stay Connected, Effortlessly

With the ability to make calls, send messages, and manage...

See full description See full description

Top specs

  • Battery Life

    Battery life shows how many days the smartwatch can operate without charging.


    It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


    For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


    Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


    The value is especially meaningful when comparing products from the same manufacturer.

  • Display Type

    AMOLED

    Advanced OLED screen type with better visual experience, almost perfect black performance, thin and light but with higher energy consumption than Super AMOLED.
  • See all
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Product report

Description

Description

Your Health, Our Priority

Track your activities, exercise routines, and sleep. Closely monitor your heart rate, blood pressure, and SpO2 levels to ensure you're always in optimal condition. The cycle tracking feature provides valuable insights into your health.

Stay Connected, Effortlessly

With the ability to make calls, send messages, and manage notifications without touching your phone, this smartwatch ensures you are always connected. Features like Prayer Timings, Prayer Beads, and Wooden Fish serve as your spiritual companion.

Entertainment and Productivity on Your Wrist

With a range of features like music playback and camera shutter control, it is your ideal device for entertainment and productivity. Built-in apps like the calculator and calendar make your daily life easier.

Designed for Convenience

The Always-On Display (AOD) with adjustable brightness ensures ease of reading the time. Customizable watch faces and wrist-raise function make it unique.

Advanced Connectivity and Performance

With CPU JL7013A6S, 640KB RAM, and 256MB storage, it handles all your apps with ease. The 260 mAh battery keeps you active all day.

Seamless Integration

Connect via Bluetooth for real-time updates from your phone.

Technical Specifications

  • CPU: RJL7013A6S
  • Flash: RAM 640KB ROM 256MB
  • Connection: Bluetooth 5.3
  • Display: AMOLED 1.43"
  • Resolution: 466x466 pixels
  • Battery: 260mAh
  • Waterproof Protection: IP68
  • App: COLMI Fit
  • Color: Black
  • Compatibility: Android 5.0 or later or iOS 9.0 or later

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Technical Specifications

Colour
Black
Release Date
2024
Screen Size
1.43 "

Screen Size

"The design and size of the casing affect how each screen size appears on the wrist. Most smartwatches have screens of 1.4-1.5 inches."
Screen Resolution
466x466 pixels
Screen Type
AMOLED

Screen Type

AMOLED

Advanced OLED screen type with better visual experience, almost perfect black performance, thin and light but with higher energy consumption than Super AMOLED.
Compatible Operating System
Android, iOS

Compatible Operating System

The smartphone must be compatible with the watch. Apple Watches only connect with iPhones, while some others can connect with both Android and iPhones, but some functions may not be fully supported.
Touch Screen
Yes
Connection
Bluetooth

Connection

Bluetooth
The basic way to connect your smartwatch to your mobile phone and other supported devices, such as wireless headphones.
Strap
Silicone
Case material
-

Features & Functions

Features
Speaker, Camera, Microphone

Features

Speaker

Playback of multimedia, notification sounds, or voice.

Microphone
For voice commands or speech.
Features & Functions
SMS

Features & Functions

SMS
The smartwatch can display SMS messages.
Use
Running

Use

The smartwatch has the ability to record the corresponding activity and produce relevant statistics.

Additional Specifications

Sensors
Heart Rate, Sleep Monitoring

Sensors

Heart Rate

Embedded heart rate monitor.

Sleep Monitoring

Recording of heart rate and breathing during sleep and diagnosis of problems according to the product. (e.g. restless sleep, lack of deep sleep, etc.)
Protection
-
ATM Rating
-

ATM Rating

The ATM rating on smartwatches indicates their level of water resistance, which tells how well the watch can withstand exposure to water and various pressure levels.

3 ATM (30 meters): Suitable for everyday splashes, rain, and hand washing.

5 ATM (50 meters): Light swimming, showering.

10 ATM (100 meters): Swimming, snorkeling, water sports.

15 ATM (150 meters): Advanced swimming, water sports.

20 ATM (200 meters): Diving, deep water activities.

50 ATM (500 meters): Professional diving, excellent water resistance.
MIL-STD-810
No

Battery

Battery Capacity
260 mAh

Battery Capacity

Most smartwatches have a battery capacity of around 200mAh. 2. The size of the battery is not always indicative of the autonomy, as this largely depends on the features of the smartwatch and the functions we have active. 3. For example, a smartwatch with a large color touch screen and 24-hour heart rate monitoring will often require charging even if it has a larger battery than a simpler smartwatch.
Battery Life
7 days

Battery Life

Battery life shows how many days the smartwatch can operate without charging.


It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


The value is especially meaningful when comparing products from the same manufacturer.
Standby Time
30 days

Standby Time

The amount of time a smartwatch can operate in standby mode, simply connected to a mobile phone with one charge. A typical average is 12 days, but it depends on what each manufacturer defines as standby mode. Size makes sense mainly in comparing products from the same manufacturer.

Dimensions

Case Size
-
Weight
51 gr

AI Features

AI Voice Assistant
No
AI Training Coach
-
AI Health Insights
-

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Description & Specifications

Your Health, Our Priority

Track your activities, exercise routines, and sleep. Closely monitor your heart rate, blood pressure, and SpO2 levels to ensure you're always in optimal condition. The cycle tracking feature provides valuable insights into your health.

Stay Connected, Effortlessly

With the ability to make calls, send messages, and manage notifications without touching your phone, this smartwatch ensures you are always connected. Features like Prayer Timings, Prayer Beads, and Wooden Fish serve as your spiritual companion.

Entertainment and Productivity on Your Wrist

With a range of features like music playback and camera shutter control, it is your ideal device for entertainment and productivity. Built-in apps like the calculator and calendar make your daily life easier.

Designed for Convenience

The Always-On Display (AOD) with adjustable brightness ensures ease of reading the time. Customizable watch faces and wrist-raise function make it unique.

Advanced Connectivity and Performance

With CPU JL7013A6S, 640KB RAM, and 256MB storage, it handles all your apps with ease. The 260 mAh battery keeps you active all day.

Seamless Integration

Connect via Bluetooth for real-time updates from your phone.

Technical Specifications

  • CPU: RJL7013A6S
  • Flash: RAM 640KB ROM 256MB
  • Connection: Bluetooth 5.3
  • Display: AMOLED 1.43"
  • Resolution: 466x466 pixels
  • Battery: 260mAh
  • Waterproof Protection: IP68
  • App: COLMI Fit
  • Color: Black
  • Compatibility: Android 5.0 or later or iOS 9.0 or later

Manufacturer

Manufacturer Details

Warnings & Safety Information

Technical Specifications

Colour
Black
Release Date
2024
Screen Size
1.43 "

Screen Size

"The design and size of the casing affect how each screen size appears on the wrist. Most smartwatches have screens of 1.4-1.5 inches."
Screen Resolution
466x466 pixels
Screen Type
AMOLED

Screen Type

AMOLED

Advanced OLED screen type with better visual experience, almost perfect black performance, thin and light but with higher energy consumption than Super AMOLED.
Compatible Operating System
Android, iOS

Compatible Operating System

The smartphone must be compatible with the watch. Apple Watches only connect with iPhones, while some others can connect with both Android and iPhones, but some functions may not be fully supported.
Touch Screen
Yes
Connection
Bluetooth

Connection

Bluetooth
The basic way to connect your smartwatch to your mobile phone and other supported devices, such as wireless headphones.
Strap
Silicone
Case material
-

Features & Functions

Features
Speaker, Camera, Microphone

Features

Speaker

Playback of multimedia, notification sounds, or voice.

Microphone
For voice commands or speech.
Features & Functions
SMS

Features & Functions

SMS
The smartwatch can display SMS messages.
Use
Running

Use

The smartwatch has the ability to record the corresponding activity and produce relevant statistics.

Additional Specifications

Sensors
Heart Rate, Sleep Monitoring

Sensors

Heart Rate

Embedded heart rate monitor.

Sleep Monitoring

Recording of heart rate and breathing during sleep and diagnosis of problems according to the product. (e.g. restless sleep, lack of deep sleep, etc.)
Protection
-
ATM Rating
-

ATM Rating

The ATM rating on smartwatches indicates their level of water resistance, which tells how well the watch can withstand exposure to water and various pressure levels.

3 ATM (30 meters): Suitable for everyday splashes, rain, and hand washing.

5 ATM (50 meters): Light swimming, showering.

10 ATM (100 meters): Swimming, snorkeling, water sports.

15 ATM (150 meters): Advanced swimming, water sports.

20 ATM (200 meters): Diving, deep water activities.

50 ATM (500 meters): Professional diving, excellent water resistance.
MIL-STD-810
No

Battery

Battery Capacity
260 mAh

Battery Capacity

Most smartwatches have a battery capacity of around 200mAh. 2. The size of the battery is not always indicative of the autonomy, as this largely depends on the features of the smartwatch and the functions we have active. 3. For example, a smartwatch with a large color touch screen and 24-hour heart rate monitoring will often require charging even if it has a larger battery than a simpler smartwatch.
Battery Life
7 days

Battery Life

Battery life shows how many days the smartwatch can operate without charging.


It depends on the battery capacity, but also on how much you use it (e.g. active display, GPS, notifications, etc.).


For example, a smartwatch with 2-3 days of battery life is ideal for daily use with all features enabled.


Models with 5–10 days or more are suitable for those who do not want to charge often or use it more "lightly".


The value is especially meaningful when comparing products from the same manufacturer.
Standby Time
30 days

Standby Time

The amount of time a smartwatch can operate in standby mode, simply connected to a mobile phone with one charge. A typical average is 12 days, but it depends on what each manufacturer defines as standby mode. Size makes sense mainly in comparing products from the same manufacturer.

Dimensions

Case Size
-
Weight
51 gr

AI Features

AI Voice Assistant
No
AI Training Coach
-
AI Health Insights
-

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.