Benchmark // 3
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EMOTIV Insight 2.0
—
Varjo XR-4
0
NextMind Dev Kit
Best in group
Resolution bits
0
EMOTIV Insight 2.0
Best in group
—
Varjo XR-4
—
NextMind Dev Kit
Price (USD)
0$
EMOTIV Insight 2.0
Lowest price
0$
Varjo XR-4
—
NextMind Dev Kit

EMOTIV Insight 2.0
EMOTIV
shipping
- Sensors
- EEGIMU
- XR platforms
- —
- Sampling rate
- 128 Hz
- Wireless
- BLE 5 + 2.4GHz dongle
- SDK
- Cortex JSON/WebSocket
- Raw data access
- included (consumer entitlement)
- Subscription required
- NoNo extra API licence; EmotivPRO optional for advanced recording
- Best for
- portable BCI development, teaching, neurofeedback prototypes
- Limitations
- 5 fixed locations; 128 Hz ceiling; proprietary ecosystem

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
xr_bci
NextMind Dev Kit
NextMind (Snap)
discontinued
- Sensors
- EEG
- XR platforms
- Meta QuestVive
- Sampling rate
- —
- Wireless
- BLE
- SDK
- NextMind SDK (Unity) — no longer supported
- Raw data access
- no raw research access
- Subscription required
- No
- Best for
- historical reference for consumer visual-cortex BCI
- Limitations
- discontinued; proprietary stimulus paradigm; no raw access