Technical sheet

Colmi M42 smartwatch

Name: Colmi M42 smartwatch
Brand: Colmi
SKU: 141892715
Rating: 4 (1 reviews)

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1 Reviews

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Features of Colmi M42 smartwatch

Product description of Colmi M42 smartwatch

Description summary

Discover the elegantly designed COLMI M42 smartwatch, your ultimate companion for health and connectivity. Its spectacular 1.43” round AMOLED screen displays your data with stunning clarity. Make and receive Bluetooth calls directly from your wrist. Monitor your heart rate, SpO2, and sleep patterns 24/7. With over 100 sports modes, IP68 water resistance, and a battery that lasts up to 7 days, the M42 is built to keep up with your active lifestyle while maintaining a sophisticated look

The COLMI M41 is a smartwatch with cutting-edge technology ideal for all those people who need a device to monitor their health and physical activity. With a 1.43-inch AMOLED screen that offers a unique visual experience and a long-lasting battery with autonomy of up to 7 days, this smartwatch is ready to accompany you on all your adventures. And now you can buy it at the best price at Powerplanetonline.

Features:

High-resolution AMOLED display:
- The COLMI M42 smart watch features a 1.43-inch touch screen with a resolution of 466 x 466 pixels that allows you to view the time, notifications, health data and applications with fantastic image quality. The screen, like the rest of the watch, is water and dust resistant with IP68 certification.

Quality hands-free calls:
- Equipped with a microphone and high-fidelity speakers, the COLMI M42 allows you to make and receive Bluetooth calls without having to take your smartphone out of your pocket. You can also control music playback via Bluetooth.

Health monitoring and sleep monitoring:
- The COLMI M42 helps you take care of your health by monitoring your heart rate, blood pressure and blood oxygen saturation (SpO2). And while you sleep, it collects data on the quality and duration of your sleep, offering advice on how to improve your rest. It also allows you to check the weather forecast.

Physical Activity Log:
- The COLMI M42 is equipped with sensors to track your steps and count data as varied as calories burned, distance traveled, etc. It also features over 100 sports modes to record data in a variety of activities, including walking, running, swimming, cycling, and more.

Up to 7 days of battery life:
- With a 410mAh battery capacity, the COLMI M42 smartwatch offers up to 7 days of battery life in standard use on a single charge. The watch charges quickly and easily using the included magnetic charger.

Specifications:

Screen:
- Size: 1.43” (round)
- Type: AMOLED
- Resolution: 466 x 466 p
- Touch: Yes

Technical parameters:
- Processor: RTL8763E
- RAM: 578 KB
- Storage: 128 Mb
- Heart rate sensor: HX3605
- Connectivity: Bluetooth 5.0
- Mobile App: FitCloudPro
- Compatible OS: Android 4.4 and above, iOS 8.0 and above

Features:
- Different sports modes
- Sports data
- 24/7 Heart Rate Monitor
- IP68 water resistance
- Blood oxygen sensor
- Sleep monitor
- Breathing control
- Reminder to drink water
- Reminder of sedentary lifestyle
- Female health control
- Bluetooth calls
- Message Reminder

Battery:
- Capacity: 410 mAh
- Autonomy (typical daily use): Up to 7 days
- Charging time: Up to 2 hours
- Charging method: Magnetic

Design:
- Strap material: Silicone
- Case material: Zinc alloy
- Strap width: 22 mm
- Dimensions: 49 x 49 x 11.5 mm
- Weight: 51 gr (with strap)

Specifications

Manual

Technical specifications of Colmi M42 smartwatch

Display Type

Amoled
Screen Size

1.43 Inch
Resolution

466*466 Pixels
Touchscreen

Full Screen Touch
Wireless Connectivity

Bluetooth 5.0
Battery Life

410mah
Water Resistance Rating

Ip68 Waterproof
Color

Silver
Features

Wrist heart rate

Features of Colmi M42 smartwatch

Color Silver

Color

Silver

Features Wrist heart rate

Features

Wrist heart rate

Key differentiators

Comprehensive health tracking with continuous heart rate, SpO2, and blood pressure monitoring.

Extensive activity tracking with over 100 sports modes.

Handle Bluetooth calls directly from your wrist for added convenience.

Long battery life of up to 7 days with typical daily use.

Vibrant 1.43-inch round AMOLED touchscreen display for clear visuals.

Technology in Colmi M42 smartwatch

Energy rating

Warnings

4 / 5

1 Reviews

What our customers are saying about Colmi M42 smartwatch

Good price-quality ratio

2025/11/01

Lasse

It's especially nice that it came with a screen protector. The lack of waterproofing took one star off. Hopefully it's a long-lasting product.

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Include AI Generated questions and answers

2026-07-20

Generated by AI and verified

What are the main health and connectivity features of the Colmi M42 smartwatch?

Answer of Generated by AI and verified

The Colmi M42 offers comprehensive health monitoring, including continuous heart rate, SpO2, and blood pressure tracking. For connectivity, it allows you to make and receive Bluetooth calls directly from your wrist.

* Generated by AI based on customer and product data

2026-07-20

Generated by AI and verified

How does the Colmi M42 compare to the Colmi P28 smartwatch?

Answer of Generated by AI and verified

The Colmi M42 stands out with its spectacular 1.43-inch round AMOLED screen for stunning visual clarity. It also provides the convenience of making and receiving Bluetooth calls directly from your watch.

* Generated by AI based on customer and product data

2026-07-20

Generated by AI and verified

Is the Colmi M42 smartwatch water-resistant?

Answer of Generated by AI and verified

This makes it suitable for everyday wear, including during workouts.

* Generated by AI based on customer and product data

2026-07-20

Generated by AI and verified

Is the Colmi M42 suitable for tracking workouts and physical activity?

Answer of Generated by AI and verified

Yes, the Colmi M42 is designed for an active lifestyle, offering over 100 sports modes to track various activities. It also logs your steps, calories burned, and distance to help you monitor your fitness progress.

* Generated by AI based on customer and product data

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Frequently bought together

Best sellers

Use cases

Daily Health and Fitness Monitoring 90% Fit

This smartwatch is ideal for beginners looking to track their daily activity and health. It monitors key metrics like steps, calories, distance, and provides continuous heart rate data, making it a great value for starting a fitness journey.

Activity tracking (steps, calories, distance),Continuous heart rate monitor,Sleep tracking,SpO2 sensor

Multi-Sport Workout Tracking 85% Fit

With over 100 sports modes, including common activities like walking, running, cycling, and swimming, this watch is a versatile and practical tool for casual users who enjoy various workouts. Its IP68 water resistance ensures it can handle different environments.

100+ sports modes,IP68 water resistance,Activity tracking,AMOLED display

Connected Lifestyle Management 80% Fit

Stay connected without constantly checking your phone. This smartwatch handles Bluetooth calls, displays message reminders, and lets you control music, offering an easy-to-use and affordable way to integrate smart features into your daily routine.

Bluetooth calls,Message reminders,Music controls,Bluetooth 5.0 connectivity

Holistic Wellness Tracking 75% Fit

For those focused on overall well-being, this watch offers practical features beyond basic fitness. It includes sleep tracking, a blood pressure monitor, breathing exercises, and reminders to stay hydrated and active, supporting a balanced and healthy lifestyle.

Sleep tracking,Blood pressure monitor,Breathing control,Reminder to drink water,Reminder of sedentary lifestyle

Best for

Best for Everyday Health Tracking

This watch is perfect for those who want an easy-to-use device to monitor daily activity and key health metrics without being overwhelmed by complex features.

Ideal for Affordable Fitness Monitoring

Offering extensive health and fitness tracking capabilities like continuous heart rate monitoring and over 100 sports modes, this watch provides excellent value.

Great for Exploring New Workouts

With over 100 trackable sports modes and comprehensive health sensors, this watch supports a varied and active fitness routine.

Enhanced Workout Experience: 80%

Perfect for a Connected, Active Lifestyle

Featuring a vibrant 1.43-inch AMOLED display and Bluetooth call handling, this watch combines modern style with practical connectivity for daily life.

Seamless Smartphone Integration: 80%

Benefits

FunctionalGain Deeper Insights into Your Health

This smartwatch provides a holistic view of your well-being by tracking key metrics around the clock. It features continuous heart rate monitoring, blood oxygen (SpO2) and blood pressure sensors, and detailed sleep tracking to help you better understand your body's patterns.

Heart rate monitor: yes

Spo2 sensor: yes

Blood pressure monitor: yes

Sleep tracking: yes

Heart rate measurement mode: continuous

Female health control: yes

FunctionalTrack and Analyze a Wide Range of Activities

With support for over 100 different sports modes, including walking, running, swimming, and cycling, this watch is equipped for nearly any workout. It tracks your fundamental activity metrics like steps, calories, and distance, allowing you to monitor your progress across various exercises.

Sports modes count: 100

Activity tracking: steps

calories

distance

Type of sports monitor: walking

running

swimming

cycling

Breathing control: yes

FunctionalStay Connected Without Reaching for Your Phone

This smartwatch keeps you connected by pairing with your smartphone via Bluetooth 5.0. You can receive message reminders and even handle Bluetooth calls directly from your wrist. It is compatible with both Android (4.4 and above) and iOS (8.0 and above) devices.

Call handling: Bluetooth calls

Message reminder: yes

Smart notifications: yes

Compatibility os: Android 4.4 and above

iOS 8.0 and above

Ideal buyer profiles

This user is dedicated to their fitness journey and seeks a device that can keep up with a varied and active lifestyle. They value detailed metrics to track progress, monitor health, and optimize their workouts across different disciplines.

With over 100 sports modes, the Colmi M42 offers extensive activity tracking for walking, running, cycling, swimming, and more. It provides advanced health insights with its continuous heart rate monitor, SpO2 sensor, and blood pressure monitor. The IP68 water resistance rating ensures it can handle demanding workouts, both in and out of the water.

The User

This buyer is looking for a feature-rich smartwatch that delivers strong performance without a high price tag. They prioritize getting the most value, seeking a device with comprehensive health and fitness features that are typically found in more expensive models.

This smartwatch provides a remarkable set of features for its price point, including a high-resolution AMOLED display, continuous heart rate monitoring, an SpO2 sensor, and over 100 sports modes. The combination of extensive tracking capabilities and a battery that lasts up to 7 days makes it a high-value option for those wanting to maximize functionality while staying on budget.

Competitive features

When evaluating the Colmi M42 Smartwatch alongside its competitors, it's clear that the landscape is filled with options that cater to similar needs. Based on the available information, the Colmi M42 distinguishes itself with a comprehensive feature set detailed in its description, including a vibrant AMOLED display and extensive health tracking. While direct specification comparisons with models like the Nomad Tempo Band or Xiaomi Redmi Watch 6 Active are limited by the provided data, we can analyze the M42 based on its stated capabilities.

Where it excels

The Colmi M42 features a 1.43” round AMOLED screen, offering a clear and vibrant display for notifications and health data. It provides extensive health monitoring, including 24/7 tracking for heart rate, SpO2, and sleep patterns. With over 100 sports modes and IP68 water resistance, the M42 is equipped to handle a wide range of activities and environments. The ability to make and receive Bluetooth calls directly from the wrist adds a layer of connectivity and convenience. A stated battery life of up to 7 days ensures it can keep up with an active lifestyle without constant charging.

Consider alternatives if...

Verdict

The Colmi M42 Smartwatch presents a compelling package for users seeking a feature-rich yet affordable device. Its combination of a high-quality AMOLED display, comprehensive health and fitness tracking, and on-wrist calling makes it a versatile companion for daily life and athletic pursuits. While the provided data does not allow for a detailed technical comparison against competitors, the M42's stated features position it as a strong contender in its category, particularly for those who value a blend of style, functionality, and connectivity.

Specs comparison

	Colmi M42 smartwatch	Colmi P81 Smartwatch	Colmi V73 Smartwatch	Colmi P86 Smartwatch	Colmi V89 Smartwatch	Colmi Steel L28 Strap Smartwatch
Battery Life	7 days	5 days	7 days	7 days	5 days	7 days
Water Resistance	ip68	ip68	ip67	ip67	ip67	ip67
Wireless Connectivity	Bluetooth 5.0	Bt5.3	5.3	5.1	5.2	Bluetooth 5.2(App Function), Bluetooth 3.0(Call Function)
Charging Time	2 hours	2 hours	2 hours	2	-	-
Gps	false	-	false	false	false	false
Touchscreen	true	true	true	true	true	true
Battery Type	rechargeable lithium	Lithium Polymer	Lithium polymer	230mAh	rechargeable lithium	rechargeable lithium
Screen Size Inches	1.4 inches	1.9 inches	1.43 inches	1.81 1.2 - 1.8	1.43 inches	1.43 inches
Blood Pressure Monitor	true	true	true	false	-	-
Battery Life Days	7 hours	5 days	7 days	7 days	5 hours	6 hours
Type Of Sports Monitor	walking, running, swimming, cycling	-	-	-	-	running, cycling, swimming, yoga
Sports Modes Count	100	100	-	100	100	100
Spo2 Sensor	true	true	true	true	true	true
Heart Rate Measurement Mode	continuous	-	-	continuous	continuous	continuous
Compatibility Os	Android 4.4 and above, iOS 8.0 and above	5	4.4	Android 4.4 or higher, iOS 9.0 or higher	5	5
Sleep Stages Tracking	false	-	true	true	true	true
Screen Resolution	466 x 466	240 x 284	466 x 466	240x286	466x466 pixels	466 px
Smart Notifications	true	true	true	true	true	true
Case Material	zinc alloy	-	zinc alloy + pc	-	Zinc Alloy + PC	metallic
Music Controls	true	true	true	true	true	-
Call Handling	Bluetooth calls	make and receive calls via Bluetooth	bluetooth calls with speaker and microphone	Bluetooth calling with built-in high-fidelity speaker and microphone	-	answer, reject, and dial calls directly from the watch
Type Of Home Diagnostic Monitor	smartwatch	-	smartwatch	Smartwatch	smartwatch	smartwatch

Specs vs competitors

	Colmi M42 smartwatch	Mibro A1 Smartwatch	Zeblaze Btalk 3 Pro Smartwatch	Beafon Bea·fon 401 Black 1.43´´ Amoled Smartwatch	No.1 Dt V9 Ultra 2 Smartwatch	Maxcom Fw74 Aurum Smartwatch
Battery Life	7 days	10 days	14 days	7 days	5 days	-
Water Resistance	ip68	5 Atm	ip68	ip67	ip68	ip68
Wireless Connectivity	Bluetooth 5.0	-	-	-	-	5.1
Charging Time	2 hours	-	1.5	2	2	-
Gps	false	false	false	false	true	-
Touchscreen	true	true	true	true	true	true
Battery Type	rechargeable lithium	rechargeable lithium	Li-Pol	Lithium-Ion	rechargeable lithium	Lithium-Ion
Screen Size Inches	1.4 inches	1.28 inches	1.43 inches	1.43 inches	2.1 1.2 - 1.8	-
Blood Pressure Monitor	true	-	true	-	-	true
Battery Life Days	7 hours	10 hours	14 hours	7 hours	-	7 days
Type Of Sports Monitor	walking, running, swimming, cycling	-	Multi-Sport	-	multi-sport	-
Sports Modes Count	100	20	100	-	-	multiple
Spo2 Sensor	true	true	true	true	true	true
Heart Rate Measurement Mode	continuous	continuous	continuous	-	continuous	continuous
Compatibility Os	Android 4.4 and above, iOS 8.0 and above	Android 5.0 or higher, iOS 10.0 or higher	Android 5.0 or iOS 10.0 and above	Android 4.4 / iOS 9 and later	6	-
Sleep Stages Tracking	false	-	true	-	true	true
Screen Resolution	466 x 466	240 x 280	466 x 466	466 x 466	420x485	240x240
Smart Notifications	true	true	true	true	true	true
Case Material	zinc alloy	-	-	Plastic	zinc alloy	-
Music Controls	true	true	true	false	-	true
Call Handling	Bluetooth calls	-	Yes	Bluetooth call	-	Yes
Type Of Home Diagnostic Monitor	smartwatch	Smartwatch	Smartwatch	Smartwatch	smartwatch	Smartwatch