Benchmark // 3
Compare devices
Channels
0
OpenBCI Ganglion
0
Neurosity Crown
Best in group
—
Varjo XR-4
Resolution bits
0
OpenBCI Ganglion
Best in group
—
Neurosity Crown
—
Varjo XR-4
Price (USD)
0.0$
OpenBCI Ganglion
Lowest price
0$
Neurosity Crown
0$
Varjo XR-4
OpenBCI Ganglion
OpenBCI
shipping
- Sensors
- EEGEMG
- XR platforms
- —
- Sampling rate
- 200 Hz
- Wireless
- BLE (dongle sold separately)
- SDK
- GUI + BrainFlow
- Raw data access
- unrestricted (open)
- Subscription required
- No
- Best for
- low-cost neurofeedback, simple BCI, education
- Limitations
- 4 channels; no microSD; BLE compression
Neurosity Crown
Neurosity
shipping
- Sensors
- EEG
- XR platforms
- —
- Sampling rate
- 256 Hz
- Wireless
- Wi-Fi ac + BLE 4.2
- SDK
- JS/TS + Python SDK; OSC/LSL/BrainFlow/MCP
- Raw data access
- raw filtered + rawUnfiltered
- Subscription required
- NoFirst membership year included; then $29.99/mo optional
- Best for
- rapid dry-electrode BCI development, focus/neurofeedback apps
- Limitations
- 8 fixed positions; ~250 g; ADC bit depth undisclosed
Varjo XR-4
Varjo
shipping
- Sensors
- eye-trackingpupillometryIMU
- XR platforms
- standaloneVarjo
- Sampling rate
- 200 (eye tracking) Hz
- Wireless
- tethered (DisplayPort/USB-C)
- SDK
- Varjo SDK; OpenXR; eye-tracking API
- Raw data access
- eye/gaze data via SDK
- Subscription required
- Yessome enterprise features need a Varjo subscription
- Best for
- high-fidelity MR, the hardware base Galea builds on, gaze research
- Limitations
- no neural sensing itself; tethered; enterprise pricing