Listen to your heart​
  • QRS, PR, QT, ST

  • Pulse - bpm

  • Max (safe) HR

  • HR zone

  • HR recovery

  • Resting HR

  • HR variability

  • RR interval

  • Stress detection

  • Activity recognition

  • Off-body detection

  • Caloric burn

ECG technology for earphones

Heart.Zone™ offers continuous ECG monitoring technology for earphones. Continuous ECG monitoring does not affect audio performance. User can enjoy music, talk on a microphone and record ECG simultaneously.


Heart.Zone's ECG technology uses pure electrical contacts in the ears and on the skin. Sweat, hair, skin color or wobbling due to motion do not affect the quality of heart monitoring.


Heart.Zone's continuous ECG monitoring technology is integrated in a micro-module and API for apps. 

  • Dimensions: 4.5 x 20 x 3 mm

  • Ultra-low power: 300 uWatt

  • Supply voltage: 2.5V – 5.5V

  • Supply current: < 200 uA  

  • Source of power:

    • 3V coin cell

    • 2.5V – 5.5V Bluetooth® battery

    • 5V Apple® Lightning®

    • 5V USB Type-C™

Heart.Zone's ECG module is engineered for easy integration with most earphone designs.  


Please consult our support engineers for your earphones design consideration.

Haert.Zone™ offers API for mobile apps enabling continuous ECG monitoring and recording.


The API enables an app to receive ECG signal from earphones, process and extract valuable data, display it to the user and store on a phone or a cloud.

Please consult our app developers for more information on app integration.


© 2019 by Heart.Zone LLC