The band would connect but be recognized as the original muse band and calibrating won’t work. I had to uninstall the app each time I wanted to use it. Then it would recognize it as the Muse-s. I contacted support via Facebook, website and app. No response and it’s been three days. Too long for it not to work. When it did work it it was ok.
https://www.amazon.com/MUSE-Headband-Overnight-Meditation-Responsive/dp/B08P8PHB4R