Introduction
The MYZONE MZ-3 is an advanced physical activity chest strap heart rate monitor designed to accurately track your fitness and activity levels. It provides real-time feedback on your effort, helping you to optimize your workouts and achieve your fitness goals. The MZ-3 integrates seamlessly with various devices and platforms, offering a versatile and comprehensive tracking experience.

Image: The MYZONE MZ-3 heart rate monitor, consisting of a red chest strap and a black oval sensor, shown alongside its white product packaging.
Setup
Before using your MYZONE MZ-3, ensure it is properly charged and correctly positioned on your body. The device is designed for comfortable and accurate heart rate monitoring during physical activity.
Wearing the MZ-3
The MZ-3 chest strap should be worn directly on your skin, just below your chest. Ensure the sensor is centered and the strap is snug but comfortable. Moisten the sensor pads on the back of the strap for optimal conductivity, especially before your first use or if you experience connectivity issues.

Image: A woman wearing the MYZONE MZ-3 chest strap below her sports bra, demonstrating its placement. A close-up image shows how to adjust the strap for a flexible and comfortable fit.
Initial Connection and App Setup
Download the Myzone App from your device's app store. The MZ-3 connects using Bluetooth 4.0 or ANT+. Open the app and follow the on-screen instructions to pair your device. The app will guide you through setting up your profile and personalizing your experience.

Image: The Myzone app interface displayed on a smartphone and a smartwatch, showing real-time heart rate and effort percentage during a workout.
Unboxing and First Use Video
Video: An official unboxing video for the MYZONE MZ-3 Heart Rate Monitor, demonstrating the contents of the package and initial setup steps.
Operating Instructions
The MYZONE MZ-3 is designed for intuitive use, providing accurate data to enhance your fitness journey.
Tracking Your Workout
Once connected to the Myzone App, the MZ-3 will display your workout stats live, including heart rate, calories burned, and Myzone Effort Points (MEPs). MEPs are a unique metric that rewards effort, not fitness, making every workout count. The device has built-in memory capable of storing up to 16 hours of exercise data, allowing you to work out phone-free and sync later.

Image: Hands adjusting the MYZONE MZ-3 sensor on the chest strap, with text overlays highlighting features such as "99.4% accuracy," "Track Progress," "Stay accountable," and "Real-time feedback."
Integration with Fitness Equipment
The MZ-3 can connect to various cardio machines and fitness applications that support Bluetooth 4.0 or ANT+ connectivity. This includes popular platforms like Life Fitness, TechnoGym, Zwift, Polar, Strava, and Wattbike, allowing you to view your heart rate data directly on gym equipment or third-party apps.

Image: A collage of logos representing various fitness platforms and equipment brands that integrate with Myzone, including Life Fitness, TechnoGym, Zwift, Wattbike, Garmin, Strava, and Polar.
Versatile Use
The MZ-3 is suitable for a wide range of physical activities and sports, providing accurate heart rate data whether you are running, cycling, lifting weights, or engaging in other forms of exercise.

Image: A triptych showing individuals participating in different sports activities, including weightlifting, squats, and running, all while wearing the MYZONE MZ-3 chest strap, highlighting its multi-sport use.
Product Overview Video
Video: An official overview video titled "MyZone MZ-3 Physical Activity Belt," showcasing the product's features and how it functions during various activities.
Movement with MYZONE Video
Video: An official video titled "Move with MYZONE," demonstrating the dynamic use of the MYZONE MZ-3 during various fitness activities.
Maintenance
Proper maintenance ensures the longevity and accuracy of your MYZONE MZ-3.
Cleaning the Chest Strap
After each use, it is recommended to rinse the chest strap with water and allow it to air dry. If the strap develops an odor, it can be hand-washed with mild soap and water. Ensure the sensor module is detached before washing the strap. Do not machine wash or tumble dry the strap.
Water Resistance
The MZ-3 is water resistant, allowing for use during sweaty workouts or in light rain. However, it is not designed for swimming or prolonged submersion in water.

Image: A close-up of the MYZONE MZ-3 sensor module with water droplets on its surface, illustrating its water-resistant design.
Battery Life and Charging
The MZ-3 boasts an extended battery life, often lasting for months on a single charge depending on usage. When the battery is low, the Myzone App will notify you. Charge the device using the provided charging cable.
Troubleshooting
If you encounter issues with your MYZONE MZ-3, refer to the following common solutions.
Connectivity Issues
- No Connection/Frequent Disconnections: Ensure the chest strap is worn correctly and the sensor pads are moistened. Check that Bluetooth is enabled on your device and the Myzone App has necessary permissions. Sometimes, restarting the app or your phone can resolve temporary connection glitches.
- Device Not Recognized: Verify that the MZ-3 is charged. If it's a first-time connection, ensure you are following the pairing instructions within the Myzone App.
Accuracy Concerns
- Inaccurate Heart Rate Readings: Ensure the strap is snug and positioned correctly on your chest. Dry skin can sometimes affect conductivity; moisten the sensor pads. If you believe your maximum heart rate setting in the app is incorrect, you may need to adjust it within the Myzone App settings or contact Myzone support for guidance.
General Issues
- Device Not Turning On: Ensure the device is fully charged. If it still doesn't turn on, try a different charging cable or power source.
- Faulty Item: If you suspect the device is faulty upon arrival or after minimal use, contact Myzone customer support or your retailer for assistance with returns or replacements.
For more detailed troubleshooting or specific issues, please refer to the official Myzone website or contact their customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand Name | MYZONE |
| Model Name | Myzone MZ-3 |
| Part Number | EAN |
| Color | Red |
| Material | Plastic |
| Item Weight | 0.16 Kilograms |
| Package Weight | 0.17 Kilograms |
| Item Package Dimensions (L x W x H) | 6.3 x 2.8 x 1.73 inches |
| Suggested Users | unisex |
| Manufacturer | MYZONE |
| Style | MZ-3 Heart Rate Monitor |
| Size | MZ-60 |
Warranty and Support
For warranty claims and product support, please refer to the official MYZONE website.
Warranty Information: Warranty on any Myzone product can only be approved on Myzone.org.
Manufacturer: MYZONE
For further assistance, visit the MYZONE Store on Amazon.




