Sadly, mine last only a day now, so I switched to the "Bangle.js 2" which I ordered during the Kickstarter. I believe it's based on the SMA-Q3 but with a reverse-engineered firmware (Espruino) and apps are all JavaScript-based.

https://hackaday.io/project/175577-hackable-nrf52840-smart-w...

https://www.espruino.com/Bangle.js2