Benchmark // 3
Compare devices
Channels
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Varjo XR-4
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Meta Neural Band (sEMG wristband)
0
PiEEG XR
Best in group
Resolution bits
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Varjo XR-4
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Meta Neural Band (sEMG wristband)
0
PiEEG XR
Best in group
Price (USD)
0$
Varjo XR-4
Lowest price
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Meta Neural Band (sEMG wristband)
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PiEEG XR
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
Meta Neural Band (sEMG wristband)
Meta (Reality Labs)
shipping
- Sensors
- EMGIMU
- XR platforms
- standalone
- Sampling rate
- —
- Wireless
- BLE
- SDK
- not public
- Raw data access
- no public raw access
- Subscription required
- No
- Best for
- hands-free typing/pointing in AR via wrist EMG
- Limitations
- not a brain interface; closed ecosystem; no researcher access
beta
- Sensors
- EEGface-EMGEOG
- XR platforms
- Meta Quest
- Sampling rate
- 250 Hz
- Wireless
- SPI to Raspberry Pi / USB
- SDK
- open PiEEG stack (Python); LSL
- Raw data access
- unrestricted (open)
- Subscription required
- No
- Best for
- students, makers, low-budget BCI+VR experiments
- Limitations
- beta; requires a Raspberry Pi; DIY assembly; forehead montage