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Galea Beta Specs

Here is the latest breakdown of specifications for the Galea Beta system. We are continuing to make improvements to the Beta system, and these specifications may change before the final device is shipped.

Last Updated: 11/10/22

Table of Specs

CategorySpecification
VR SystemIncludes Varjo Aero. Custom configuration available for Varjo XR3
Scalp EEGDry soft-polymer active electrodes
  • 8-channels Fz, Cz, Pz, Oz, P3, P4, PO7, PO8
  • Reference and bias drive earclip electrodes for common mode noise rejection.
Facepad
  • PPG - 1 forehead sensor
  • EMG: 4 channels
  • EEG: 2 channels (Fp1, Fp2)
  • EOG: 2 channels, 1x vertical and 1x horizontal
  • EDA: 1 forehead
Data Acquisition
  • 24-bit resolution: ExG sampling rate = 500hz
  • 18-bit resolution: PPG maximum sampling rate = 400 Hz
  • 16-bit resolution: EDA maximum sampling rate = 25 Hz
Data transfer
  • Wireless (Dual band wifi 2.4 and 5 GHz, 802.11a/b/g/n/ac)
  • Bluetooth 5.0
  • Local: micro-SD card slot
Eye TrackingImage based eye-tracking by Varjo. Electrical based eye-tracking using vertical and horizontal EOGs
IMU and MagnetometerIMU: 6-axis (acceleration and gyroscope), 1.6 kHz sampling rate. Magnetometer: 3-axis, 20 Hz sampling rate
PowerUSB-C Ports
  • 1x input: 5V/1A. Battery charging when not in use.
  • 1x output: 5V/0.5A. Power and data connection with external accessories.
Rechargeable 2000 mAH Li-ion battery pack. Run time up to 8 hours.
Head sizeFits head circumferences of 51 - 62 cm
Weight
  • With VR Lenses: 2.1 lbs
  • Without VR Lenses: TBD
Software Integrations
  • Unity and Unreal Engine SDKs
  • Bindings for Python, C++, Java, C#, Julia, Matlab, R, and Rust
File Formats & Streaming
  • File Formats: BDF+, CSV
  • Streaming formats: LSL, UDP, OSC, Serial