We have made some progress towards a lower cost seizure detector by developing support for the BangleJS2 watch.
It is still in the development stage, but the testing I have done has shown that it is very promising – we can get acceleration and heart rate data off the watch, the battery life is good, and I have not had any trouble with it losing the bluetooth connection.
Some details and a place for technical discussion is posted on our Github discussions page here.
It would be good if anyone who enjoys tinkering with devices could help with getting this suitable for end user release by sorting out some of the identified issues, and developing end-user instructions to set it up.
Please get in touch (graham@openseizuredetector.org.uk) if you would like to help out!
Graham.