Benchmark // 3
Compare devices
Channels
0
OpenBCI Cyton
Best in group
—
Varjo XR-4
0
NextMind Dev Kit
Best in group
Resolution bits
0
OpenBCI Cyton
Best in group
—
Varjo XR-4
—
NextMind Dev Kit
Price (USD)
0$
OpenBCI Cyton
Lowest price
0$
Varjo XR-4
—
NextMind Dev Kit
OpenBCI Cyton
OpenBCI
shipping
- Sensors
- EEGEMG
- XR platforms
- —
- Sampling rate
- 250 Hz
- Wireless
- RFDuino USB dongle
- SDK
- GUI + BrainFlow (Python/Java/C++/C#/MATLAB/Julia/Rust/R)
- Raw data access
- unrestricted (open)
- Subscription required
- No
- Best for
- custom EEG/EMG/ECG hardware, student BCI projects
- Limitations
- bare board; assembly required; older radio architecture
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- historical reference for consumer visual-cortex BCI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