ZeFit 3HR, the watch with a heart rate option

88,90 €

111,13 €


  • New

Analyze your physical activity and your heart rate with the connected watch ZeFit 3HR of Mykronoz. 

Origin: Switzerland .

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ZeFit 3HR is a connected watch with touch screen that displays time, number of steps, distance, calories burned and records the quality of your sleep, but as a bonus it also measures your heart rate.

With just a finger on the screen, users can view their activity results in real time. Once connected to a smartphone via Bluetooth 4.0, ZeFit 3HR synchronizes notifications of calls, SMS, emails, calendar events and social networking activity. Using the free mobile app, set your goals and daily reminders, monitor your level of performance and analyze your progress!

ZeFit 3HR has a removable and interchangeable strap to match your personal style.

With its weight of only 18 g and its very simple design, the ZeFit 3HR of MyKronoz is a discreet connected watch. Its small screen with a resolution of 160 x 64 pixels.

 As a bonus, the watch vibrates when the connection with the smartphone is lost, which avoids forgetting the latter when leaving a place.

All of these features can be configured or operated via an application that is deployed on Apple, Google, and Microsoft systems.

The autonomy of the ZeFit 3HR can go up to 5 days when it is in standby.

Its case is made of aluminum and is waterproof to 1 m depth (IP 67 specification). Finally, it is available in different colors.

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Technical specifications

Bluetooth: 4.0BLE

Dimensions: 47.5 * 20 * 10.3 mm

Weight: 20 gr

Battery Type: 100mAh

Standby time: up to 5 days

Movement: Touch screen OLED 160 * 64 pixels

Sensor: Triaxial Accelerometer

Operating Temperature Range: -20 ° C to + 40 ° C

Water Resistance: IP67

International warranty: 1 year

Included accessories: magnetic charger, USB cable




We like :

Good to know :

Interchangeable bracelets Standby time: up to 5 days
Receive your notifications to your wrist Waterproof
Analyze the duration and quality of your sleep Anti-Loss Alert


How to set the time ZeFit3 HR?

After setting up your watch, it must set itself automatically on time.

If this is not the case, go to the "Activity" page of your mobile application to synchronize.

To do this, simply drag your finger from the top of your screen to the bottom.

How do I navigate my ZeFit³ HR screen?

Activating the screen

To activate the screen of your ZeFit³ HR, please press twice on the screen of your device. Without activity, the ZeFit³ HR screen will turn off after a few seconds.

Exiting a menu

To exit a menu, press the touch screen twice.

Navigating between screens

Slide your finger from right to left (horizontal mode), up and down (vertical mode).

Note that you can orient the screen of your device by going to the settings menu and then pressing the next icon of your watch or the Watch dials application.


To ensure that your ZeFit³ HR responds precisely to pressures, we recommend using your finger and not your fingernail.




Comments (4)

Eric B


Watch is very easy to configure. Features are as good as premium brands (I had one before) but for less. Therefore very good value for money . Watch to be recommended.

Martin R


I absolutely love my Kronos Zefit3. Very cool design and comfortable to wear. Like that it's water/sweat resistant. In addition, it tracks your calories burned, heartrate, and sleep (deep and regular) new messages alert. I highly recommend.

Paunina D


I am not into activity watches but that one is really nice, easy to used, good looking and great produce. Go for it !!!!!!



Nice tracker !
I really get results when I run

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