General instructions

What is the proper length of the belt for me?

Measure you chest size below the pecs/breasts. Adjust the Beat2Phone ECG strap to be significantly shorter than you chest size for tight fit to achieve good electrode skin contact.
For example:
80cm chest 65-68 cm strap
100cm chest 72-77cm strap
130cm chest 84-93 cm strap

The strap can be adjusted from 65-93cm to fit chest 78-145cm. Instructions for shortening or lengthening the belt are found below.

How to shorten the strap?

To shorten the strap, pull a loop (A) of the strap through the adjustment clip (B) so that the lenght (L) is decreased. Lock the loop (A) with a safety pin (C) to prevent it from slipping back through the clip (B).

How to lengthen the strap?

To lenghten the strap, take a strip (22cm) of cloth ribbon, fold it in half (A) and attach it to the looped end of the strap with a safety pin. You get a 103cm long strap that extends up to 155 cm. In case more extension is needed, take a longer strip of cloth.

If you encounter a problem while using our device or application, it’s best to send an email to Our experts will reply to your message as soon as possible. To help identifying and resolving the issue, we recommend that you send us the following information in your message, if possible.

As accurate as possible description of the problem.

Are you using the application on an Android device or an iOS device?

Mobile device model. (for example, Samsung Galaxy S10 or iPhone 10)

Android/iOS operating system version. (This can be found from phone settings, usually from “System” menu.)

Beat2Phone ECG application version. (This is visible in the application home view, e.g. V2.4.3)

Sensor version, Beat2Phone Sensor or Beat2Phone ECG Sensor? (This can be found from a sticker that is located behind the sensor.)

Are you using the cloud service and are you able to log in to the cloud service?

The username that you’re using in the Beat2Phone ECG application. (This can be found from the profile menu that opens from the top right corner of the application home view.)

If you want to quickly remove all the user profiles and recordings from your mobile device, you can delete the Beat2Phone ECG application and then reinstall it. If the profiles reappear when you have uninstalled and reinstalled the Beat2Phone ECG application and this is not wanted, it is because the mobile phone stores your application data to the Google cloud and automatically reloads them when you reinstall the application. To disable this functionality, you must de-select “automatic restore of settings and information” from your phones settings. This is usually found in “backup & restore” menu in the settings.

You can access the service from here >>
You can find instructions for use from the instructions for use page >>

  • You can reset the Beat2Phone ECG sensor by placing it to the charging connector and removing it after few seconds.
  • In some mobile devices the wifi must be turned off for the measurement to succeed.
  • In some mobile devices, the location must be turned on for the device to connect to the sensor.
  • Remember to moisten the electrodes in the electrode belt and check that the belt is sufficiently tightened for better signal quality.

Unstretched: 65-90 cm

When sufficiently stretched for use: 74-115 cm

The Beat2Phone ECG sensor uses a rechargeable battery that is charged in the included Beat2Phone ECG charging connector.

The battery charges from empty to full in approximately one hour.

In some mobile devices, the device location must be turned on to connect to the sensor.

From the Beat2Phone ECG application settings, check that your sensor is connected to the mobile device. Try disconnecting the sensor by choosing “Forget sensor” and connect to the sensor again. If this does not resolve the issue, try rebooting the mobile device Bluetooth connection and the Beat2Phone ECG application. If still not resolved, try rebooting your mobile device. Finally, reboot the sensor by briefly charging it.

From 24 hours up to 48 hours if the sensor battery is fully charged.

Many mobile devices have, by default, a rather aggressive battery consumption optimization, which can turn off applications that appear inactive. This battery optimization sometimes turns off the Beat2Phone application, which causes the measurement to stop. Usually, this optimization can be adjusted from the mobile device settings, depending on the model of the device. The most reliable measurement can be performed when the mobile device is not used for anything else during the measurement. Even more reliable performance can be achieved if the application remains active, and the mobile device is being charged. To make sure that the measurement has not stopped, it is recommended to check the status of the measurement from time to time.

The Beat2Phone ECG application has not been tested on all mobile devices.

It has been found to work well in the following devices:

  • Google Pixel 3a
  • Google Pixel 1
  • Honor 8s
  • Huawei Honor 20
  • Huawei P20 Lite
  • Huawei Y5
  • Motorola Moto G 8 Power (Wifi must be turned off during measurement)
  • Nokia 2.4
  • Nokia 6.1
  • Nokia 6.2
  • Nokia 7 Plus
  • Nokia 7.2
  • Samsung Galaxy A10
  • Samsung Galaxy A70
  • Samsung Galaxy A42
  • Samsung Galaxy A21s
  • Samsung Galaxy S7 Edge
  • Samsung Galaxy S8
  • Samsung Galaxy S9
  • Samsung Galaxy S10
  • Xiaomi Mi 9
  • Xiaomi Redmi Note 7


  • Samsung Galaxy Tab A
  • Samsung Galaxy Tab S5e
  • Lenovo Tab M8 HD

In the following devices, Beat2Phone does not work properly (Bluetooth problem):

  • Huawei Honor 7, 8, P10 Lite, Media Pad M3, P20 Pro
  • Lenovo Yoga TAB3 Plus (YT-X703L), Android 6.0
  • OnePlus5, Android 7.1
  • Samsung Galaxy S10e

You can find the short user guide from the instructions for use page >>

You can find instructions for use from the instructions for use page >>

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