OpenBCI Ultracortex
Dry-electrode EEG recording with separately purchased acquisition board
Keep in mind Specialized research product; specifications are manufacturer documentation, not our independent performance test.
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At a glance
The differences that matter
Neurosity Crown
Dry-electrode EEG sensing and feedback
Published specifications and documented constraints. See the full comparison below for prices and sources.
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| Neurotech & body controlAdd a model |  |  |
|---|---|---|
| Prices · all markets | $899.99 USD≈ €805 EURECB 2026-10-12US · Store price · Out of stock 1 offer records & sources$899.99 USD≈ €805 EURECB 2026-10-12 US · Store price Out of stockOpenBCI official Ultracortex "Mark IV" EEG Headset Manufacturer listed price; final destination checkout not verified. Structured offer availability is manufacturer data.Check merchant offer ↗Price source ↗ Checked 2026-10-12 | $1,499 USD≈ €1,341 EURECB 2026-10-12US · Store price · Listed 1 offer records & sources$1,499 USD≈ €1,341 EURECB 2026-10-12 US · Store price ListedNeurosity official Crown hardware Manufacturer article lists $1499; current store checkout and stock not verified.Check merchant offer ↗Price source ↗ Checked 2026-10-12 |
| Designed for | Dry-electrode EEG recording with separately purchased acquisition board ↗ | Dry-electrode EEG sensing and feedback ↗ |
| Form factor | 3D-printed EEG headset kit ↗ | EEG headset ↗ |
| Charging | Not verified | USB-C ↗ |
| Weight | Not verified | 228 g ↗ |
| EEG | Up to 16 channels ↗ | 8 channels at CP3, C3, F5, PO3, PO4, F6, C4, CP4 ↗ |
| Construction | 3D-printed open-source frame ↗ | Not applicable to this category |
| Electrodes | Dry electrodes included in kit ↗ | Flexible dry Ag/AgCl; references at T7/T8 ↗ |
| Sizes | Small, Medium and Large ↗ | Not applicable to this category |
| Assembly | Unassembled, print-it-yourself and pro-assembled options ↗ | Not applicable to this category |
| Acquisition Board | Cyton, CytonDaisy or Ganglion required and sold separately ↗ | Not applicable to this category |
| Runtime | Not verified | 3 hours rechargeable lithium-ion ↗ |
| Dimensions | Not applicable to this category | 6.5 × 6.25 × 3.25 in ↗ |
| Sampling rate | Not applicable to this category | 256 Hz ↗ |
| Connectivity | Not applicable to this category | Bluetooth 4.2 / BLE and Wi-Fi 802.11 ac/a/b/g/n ↗ |
| Processor | Not applicable to this category | 1.8 GHz quad core with 400 MHz coprocessor ↗ |
| Storage | Not applicable to this category | 8 GB flash and 1 GB RAM ↗ |
| Haptics | Not applicable to this category | 2 haptic motors ↗ |
| Availability | Manufacturer documentation checked; local stock, final checkout and destination delivery not verified. | Manufacturer documentation checked; local stock, final checkout and destination delivery not verified. |
| Important context |
| - |
| Editorial pick & release | No editorial ranking recorded | No editorial ranking recorded |
| Evidence | Manufacturer source Checked 2026-10-12 | Manufacturer source Checked 2026-10-12 |
Battery claims use different conditions and are not a controlled benchmark. “Not verified” is an evidence gap, not a missing feature. Prices are dated regional snapshots. Deposits, bundles and historical launch prices are labelled. Brightness measurement methods and battery workloads vary by manufacturer.