Twiddler is an older design from the first wave of wearable computers, there are newer revisions that are still being sold afaik https://en.wikipedia.org/wiki/

Twiddler is an older design from the first wave of wearable computers, there are newer revisions that are still being sold afaik https://en.wikipedia.org/wiki/Twiddler https://en.wikipedia.org/wiki/Twiddler https://www.mytwiddler.com/ https://www.mytwiddler.com/