COLMI M40 Smartwatch Review – Specs Price, Pros & Cons

Brand: Other Brands
Category: Smartwatch

  • Processor: Realtek RTL8762DT processor
  • Operating System: Proprietary OS
  • Display: 1.32″ inch TFT LCD
  • Memory: –
  • Battery: 300 mAh Battery life: 3~7days
  • Sensors: g-sensor, heart rate sensor.

COLMI M40 Smartwatch Review

The Colmi M40 smartwatch is designed for people who are looking for something that can keep track of their fitness activities, sleep patterns, heart rate, calories burnt, steps taken, etc. This watch comes with a built-in GPS receiver, accelerometer, gyroscope, barometric pressure sensor, Bluetooth 4.0 connectivity, NFC (Near Field Communication) technology, and a 1.39 inch TFT LCD screen.

This watch has a stainless steel case with a diameter of 42mm and a thickness of 9.9mm. It weighs only 65 grams and is water-resistant up to 50 meters. There is no need to worry about charging this watch since it uses a lithium-ion battery that lasts up to 5 days on a single charge.

It has a built-in pedometer that counts your daily step count and displays it on its display. You can also use the app to view your daily activity stats.

You can also set alarms and timers using the watch’s features. It has a backlit LED light that illuminates the display at night.

There are two buttons on the right side of the watch face. One button is used for scrolling through menus and the other button is used for taking pictures.

The watch has a built-in microphone that allows you to make calls from the watch. You can also record voice memos.

COLMI M40 Smartwatch Hardware


Form Factor



Screen Size1.32″ inch
Display TypeTFT LCD
Screen Resolution360 x 360-pixel resolution
Touch TypeSingle Point Touch Screen


Size43.0 mm x 37.30 mm 9.8 mm
CasingZinc Alloy


OS PlatformProprietary OS


CPURealtek RTL8762DT processor


Internal Storage64 M
Card SlotSD card slot up to 4 GB


SIM Slotnone
BluetoothBluetooth 5.0


Battery Capacity300 mAh Battery life: 3~7days, 20 days standby time
Charging TechnologyMagnetic Charging Cable

Body Resistance

Body ProtectionIP67 waterproof
Glass TechnologyTempered glass


Sensors/Functionsg-sensor, heart rate sensor, blood pressure sensor, as well as oxygen monitor


AudioBluetooth Call Function


Camera Typenone


FeaturesCall and message notifications, music player, multi-function NFC, menu styles, support voice assistant, social app messages, sports function, sleep monitoring, sedentary reminder, alarm, timer, and more

Color Availability

Colorsstar shining black, ocean blue, and bright moon-white

Other Details

Other Details

Package Contents

Package Contents1 x Colmi M40 Smartwatch
1 x User Manual
1 x Charging Cable


CompatibilityAndroid and iOS

M40 Bluetooth Headset

This headset is designed to connect to your smartphone via Bluetooth technology. You can use this headset to listen to music, make calls, and answer incoming messages. It features a noise reduction microphone and volume control buttons.

COLMI M40 Charging Dock

This charging dock allows you to charge your COLMI M40 smartwatches while they are connected to your smartphone. It comes with two USB ports, allowing you to charge both your smartwatch and your phone at once.

Also Read: Garmin Fenix 3 vs. Suunto Ambit3 Review

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