I have a Vivoactive 4 that I picked up used from Facebook a couple of months back. It's a few years old now, and the regular LCD screen looks pretty janky once you've got used to OLED. But it cost me £50, works perfectly well with GrapheneOS, and the battery still lasts a week.

It's left me pondering upgrading it to a new one with an OLED screen.

The Garmin Instinct is what I switched to when my Pebble died. Recently upgraded to the Fenix.

You can absolutely skip ahead through ads with the music controls. Automating it would be the job of the app.