Last Updated on June 18, 2026 by pg@petergamma.org
The smartwatches Rob ter Horst presents are only of very limited use for medical and research grade applications:
But what are the alternatives?
The Schiller CS200 for 26 000 USD?:
And the g.tec multi-purpose EEG headset for 50 000 USD?
I have reviewed low-cost high-quality devices for physiology on my blog for many years. For private projects it is not worth to go beyond products from www.openbci.com. Since other products are not optimized for low-cost high-quality. I am now at a limit that it is not worth for me personally to build such devices as for instance the The Schiller CS200 new from scratch.
The Schiller CS200 has been developed over many years and has many features.
I have presented an alternative to build it by ourselves for a view thousand dollars. This is a device which is cut down to the essentials. But the CS200 is one of the view devices which allows to measure stress objectively. And that is of interest for instance to quantify the effect on stress by meditation researchers.
I am not interested in soft- and hardware development. But most of the devices for physiology are too expensive for my purpose. It is not worth building those for me personally. And it is not worth buying those which are on the market for me personally as well.
But I will continue to review such devices. What would be worth it for me personally would be to build a device which maybe some electronic engineers have built and have written a paper about it. And in this way maybe we have sooner or later a community who starts building and developing such devices by ourselves, as community projects.