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Varjo XR-4
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g.tec Unicorn Hybrid Black
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Varjo XR-4
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g.tec Unicorn Hybrid Black
Best in group
Price (USD)
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Varjo XR-4
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g.tec Unicorn Hybrid Black
Lowest price

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

shipping
- Sensors
- EEGIMU
- XR platforms
- —
- Sampling rate
- 250 Hz
- Wireless
- BT 2.1
- SDK
- Unicorn Suite; Python API (~$620), Simulink (~$775) paid add-ons
- Raw data access
- included via Recorder/Suite
- Subscription required
- NoNo recurring fee; developer modules are one-time paid add-ons
- Best for
- P300/SSVEP/motor-imagery teaching, hackathons
- Limitations
- fixed 8-channel montage; >3 h battery; old Bluetooth