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Base parameters
Brand COLMI
Product Name M42 Smartwatch
Colors Black, Sliver, Green
Connectivity Bluetooth 5.0
Chip parameters
Main chip Realtek RTL8763EWE-VP
FLASH RAM 578KB ROM 128Mb
Heart rate chip HX3605
Waterproof level IP68 Waterproof
Software
App name : FitCloudPro
Compatibility : Android 4.4 and above, iOS 8.0 and above, Harmony OS
Display parameters
Screen size : 1.43 inch
Screen type : AMOLED
Resolution : 466*466 pixels
Touch type : Full screen touch
Appearance & Details
Watch material : Zinc alloy+iML
Watch band : Silicone strap
Strap width : 22mm
Assembly mode : Removable
Battery parameters
Type : Lithium polymer battery
Capacity : 410mAh
Protection IC : Seiko Y1
Charging method : 2pin magnetic Cable
Charging time : About 2h
Using time : 5~7 days
Watch features
Telephone, Contact person, Call records, Voice assistant, Step data, Workout *, Workout records, Heart rate, Sleep, Blood oxygen, Pressure(not blood pressure), Messages, Weather, Female, Music, Breath training, Stopwatch, Timer, Alarm clock, Set time, Find phone, Calculator, Menu style, Watch Face switch, Brightness, Screen time, Raise to wake, AOD clock, Current battery, Power saving mode, Vibration intensity, Language, QR code, System info, Shutdown, Restart, Reset
App features
Steps, Burned, Distance, Goal, Sleep, Heart rate, Stress, Blood oxygen, Notifications, Alarms, Activity reminder, Drink reminder, Dial library, Local dial, Sports Push **, Weather, Raise to wake, Elevated health monitor, Automatic health monitor, Find watch, Wrist preference, Hour style, Frequent contacts, Shake phonegraph, Restore Factory Settings, Device Version, Exercise goal, Units, FAQ, Women's health, Wechat sports(For Android and Hammoy), Apple health(For iOS), Settings, Suggestions
Collapsible row
🔥 Colmi M42 Smartwatch – Rugged Elegance, Built for Performance
Built for active lifestyles, the Colmi M42 offers a rugged design with smart features like fitness tracking, heart rate monitoring, and Bluetooth calling—all in one sleek watch.

Super sports
COLMI M42 has a variety of sports modes, which allow you to choose arbitrarily, exercise all the time, and find your own sports state.

Sports data
COLMI M42 uses precise measurement equipment to accurately record sports data when you exercise, including steps, heart rate, calories burned and more.

APP connection
When you connect COLMI M42 to the APP, you can see your exercise status in the APP and keep track of your exercise information.

Blood oxygen
COLMI M42 is capable of blood oxygen measurement, allowing you to know the blood oxygen concentration at all times and safeguarding your health.

Sleep
As a smart watch that supports sleep measurement, COLMI M42 can measure your deep sleep, light sleep, and waking time.

Measure heart rate
COLMI M42 uses a high-performance heart rate sensor to intelligently identify abnormal heart rate and other conditions, and provide you with personalized guidance.
COLMI M42 Preview and Package
Frequently ask Questions
How do I pair the Colmi M42 Smartwatch with my phone?
To pair the Colmi M42, turn on Bluetooth on your smartphone and install the "FitCloudPro" app. Open the app, search for devices, and select "Colmi M42" to connect.
Is the Colmi M42 waterproof?
Yes, it has an IP67 rating, meaning it's water-resistant for everyday use like hand washing or light rain, but not suitable for swimming or showers.
How long does the battery last?
The Colmi M42 has a 410mAh battery that lasts about 5 to 7 days with normal use and up to 45 days on standby.
What health features does it support?
The M42 includes heart rate monitoring, blood oxygen tracking, sleep monitoring, and stress measurement to help you stay on top of your wellness.