PineTime Is a $25 Smartwatch / Companion for PinePhone Linux Phone
A bit OT, but related:  there are no cheap, simple, FOSS mp3 players.  It used to be that you could get a Sansa which was flashable with Rockbox¹, had a decent battery life, cost around US$30 and would take SD cards.  Those options have now disappeared and been replaced with devices that do not have enough memory to be flashed with Rockbox. The default OS on these is terrible compared to Rockbox.Would love it if someone would make a simple player which was controllable by the user.1. https://www.rockbox.org/