Benchmark // 3
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InteraXon Muse 2
—
Varjo XR-4
0
PiEEG XR
Best in group
Resolution bits
0
InteraXon Muse 2
—
Varjo XR-4
0
PiEEG XR
Best in group
Price (USD)
0.0$
InteraXon Muse 2
Lowest price
0$
Varjo XR-4
—
PiEEG XR

InteraXon Muse 2
InteraXon
shipping
- Sensors
- EEGPPGIMU
- XR platforms
- —
- Sampling rate
- 256 Hz
- Wireless
- BT 4.2
- SDK
- Muse SDK (iOS/Android); 3rd-party BrainFlow/Muse-LSL
- Raw data access
- via SDK / LSL tools
- Subscription required
- NoRaw EEG needs no Premium; app features ~$49.99/yr; commercial SDK licence separate
- Best for
- meditation/neurofeedback, intro EEG, large-N deployments
- Limitations
- 4 frontal/temporal channels; 12-bit; BT packet loss

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

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