iPhone Screenshots


E4 realtime is a research application that allows you to visualize live physiological signal data from the Empatica E4 wristband. E4 realtime stores streamed data and automatically backs up data to your Empatica Connect account after the streaming session is completed.

In order to use this app, you need a compatible Empatica E4 wristband research device. The E4 realtime app does not work with the Embrace watch. If you want to know more, please contact Empatica at sales@empatica.com or check our website www.empatica.com/research/e4/.

The E4 realtime app allows you to visualize the following physiological parameters from the E4's onboard sensors:

• Blood-volume Pulse (BVP) waveform and current heat-rate
• Electrodermal Activity (EDA) waveform and current skin conductance level
• Accelerometer state
• Peripheral temperature

What's New

Version 2.1.0

Version 2.1.0
At Empatica, we deeply care about the experience of our researchers.
In this version we introduced Landscape orientation to improve the visualization when mirroring on a TV screen or a monitor.
• Better on-wrist detection logic showing on-wrist status also in main screen
• Heart rate value is dimmed if the device is not on wrist
• Tiny layout enhancements for iPhone X and for small factor devices like iPhone 4S, iPhone 5 and iPod Touch

Version 2.0.0 - 2.0.5
• Resolved an error that was previously blocking the Study Participant from logging in
• Updated our Privacy Policy
• Refinements to our security measures in the app for General Data Protection Regulation (GDPR)
• More accurate E4 device battery level readings
• Improved robustness and performance
• Enhanced compatibility with legacy E4 firmware
• Redesigned user interface and improved connection experience
• Redesigned realtime graphs with zoom, pan and autoscale capabilities
• iOS 11 compatibility

— Empatica Engineering Team

Ratings and Reviews


Log in issues

The app will not let me log in.


How to log into the app?

How to log into the app?


Helpful app; don't mind those one-star reviews

So the app is great. Intuitive UI, super easy sync with the E4, and having a battery indicator is helpful. Nicely done.

If I were the picky type I'd mention that the UI sometimes freaks out when you transition from streaming to the dashboard in vertical orientation. Everything stretches. It's minor and easily fixed (just turn the phone).

Oh, and I'm pretty certain all the one-star reviews are from people with Embrace devices trying to log in with those credentials. This app requires an E4 device and will not work with an Embrace. Different accounts. That said, it would be lovely if Embrace worked with this app.

Developer Response

Hi, thanks for your feedback. We’ve released a new version 2.0.2 of E4 realtime and we invite you to update. It includes many fixes and improvements, and we hope you’ll like it. Email us at support@empatica.com if you have questions.


Empatica S.r.l.
33.3 MB
Requires iOS 8.2 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
Copyright © 2018 Empatica Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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