This chart compares EEG devices by signal-to-noise ratio (SNR) and price. Devices are grouped by category: consumer, research, clinical, or implantable. Asterisks (*) next to SNR or price indicate estimated values not directly sourced from manufacturer specifications.

Note on Neuralink: While Neuralink is not yet commercially available, it is designed as a bidirectional brain–computer interface. This includes high-fidelity recording and planned future support for electrical stimulation. Current trials focus on recording only.