Last Updated on January 15, 2023 by pg@petergamma.org
| channels | BLE | WIFI | Sampling rate | Demos available | Scientific papers | Warranty | store | costs (USD) | cons | ||
| 1 | Emotiv EPOC Flex Control Box | 32 | BLE 4.0 | 2.4GHz | 14/16 bit | Several on YouTube | yes | 180 days | Emotiv webstore | 1,199 | For long-term meditators., there are maximal costs of $289.00 per month, if the device needs to be replaced after 6 month, and we need, LSL. |
| 2 | Aliexpress 32 channel WIFI | 32 | yes | yes | 24 bit | no | no | 75 day money back | FAO Aliexpress | 1,243 | For whom is a device attactive, which costs 1,243 USD, and has only a 75 day buyer protection money back warranty? |
What we noticed is the short varanty time money back warranty of th 32 channels devices, Emotiv 180 days vs 75 money back Aliexpress. These devices costs more than 1000 USD and have only a short warranty time. This makes devices more interesting, which are build from single components:
Links Emotiv:
– Technical Specifications
https://emotiv.gitbook.io/epoc-flex-user-manual/epoc-flex/technical-spec
– 14 bits with 1 LSB = 0.51μV 16 bit ADC
– 14 bit per channel:
– BLE 4.0
Link Aliexpress 32:
https://www.aliexpress.com/item/1005002553363982.html?spm=a2g0o.cart.0.0.21313c00EvgW1g&mp=1