ET456 FAQ

NORTH EDGE ET456 FAQ

1. What type of watch is the NORTH EDGE ET456?

The ET456 is a multifunctional ECG health smartwatch designed for health monitoring, fitness tracking, and daily smart use.

It combines advanced health sensors with a full-color AMOLED display and multiple sports modes.


2. What health features does the ET456 support?

The ET456 includes:

  • ECG monitoring
  • Heart rate tracking
  • Blood oxygen (SpO₂) monitoring
  • Blood pressure monitoring
  • Sleep tracking
  • Body temperature monitoring
  • Stress and fatigue analysis
  • Activity tracking (steps, calories, distance)

3. Is the ET456 a medical device?

No.

The ET456 is a consumer health smartwatch.

All data is for reference and wellness purposes only and should not be used for medical diagnosis or treatment.


4. Does the ET456 support ECG measurement?

Yes.

The ET456 can perform ECG measurement through built-in sensors and display results in the companion app for health reference.


5. Does the ET456 measure blood oxygen (SpO₂)?

Yes.

The watch can monitor blood oxygen levels and sync the data to the mobile app.


6. Does the ET456 support blood pressure monitoring?

Yes.

It provides blood pressure estimation for daily health tracking.

All readings are for reference only.


7. Does the ET456 support Bluetooth calling?

Yes.

After connecting to your smartphone, the watch supports:

  • Making and receiving calls
  • Call notifications
  • Contact synchronization
  • Hands-free communication via built-in speaker and microphone

8. What display does the ET456 use?

The ET456 features a 1.56-inch AMOLED full-touch display, offering:

  • High brightness
  • Strong contrast
  • Smooth touch control
  • Clear visibility indoors and outdoors

9. Is the ET456 waterproof?

Yes.

The ET456 is rated IP67 waterproof, suitable for:

  • Hand washing
  • Rain
  • Sweat
  • Daily use

It is not recommended for swimming, diving, hot showers, or saunas.


10. Can I swim with the ET456?

No.

Due to its IP67 rating, the watch is not designed for swimming or prolonged water immersion.


11. Does the ET456 support sports modes?

Yes.

The watch supports multiple sports modes such as:

  • Running
  • Walking
  • Cycling
  • Fitness training
  • Indoor exercise

12. Does the ET456 support message notifications?

Yes.

It can display notifications from:

  • Calls
  • SMS
  • WhatsApp
  • Facebook
  • Instagram
  • Other app alerts

13. Does the ET456 require a smartphone app?

Yes.

A companion app is required to:

  • Sync health data
  • View ECG and analysis results
  • Manage settings
  • Update watch data

14. What materials is the ET456 made of?

The ET456 typically features:

  • Alloy case
  • Silicone strap
  • AMOLED protective glass
  • Built-in health sensor module

15. How long does the battery last?

Battery life depends on usage such as:

  • Bluetooth calling
  • ECG monitoring frequency
  • Screen brightness
  • Notification usage

Under normal use, it lasts several days per charge.


16. How do I charge the ET456?

The watch uses a magnetic charging cable.

Simply align the charger with the back of the watch to start charging.


17. Why are health readings different from medical devices?

Differences may occur due to:

  • Wearing position
  • Skin condition
  • Movement during measurement
  • Environmental factors

For best results, wear the watch properly and remain still during measurement.


18. How should I maintain the ET456?

  • Clean sensors regularly
  • Keep the watch dry after water exposure
  • Avoid hot water, steam, and saunas
  • Avoid strong impacts
  • Charge regularly

19. What is included in the package?

The package typically includes:

  • NORTH EDGE ET456 Watch
  • Magnetic Charging Cable
  • User Manual
  • NORTH EDGE Branded Box

20. What warranty does NORTH EDGE provide?

NORTH EDGE provides after-sales support for manufacturing defects under normal use conditions.

If you experience any issues, please contact customer support and provide:

  • Order number
  • Product model
  • Photos or videos showing the issue
  • A brief description of the problem

Our support team will review your case and provide a solution as quickly as possible.