Pinetime maybe https://www.pine64.org/pinetime/ https://www.pine64.org/pinetime/ Pebbles were very hackable, but you can't buy new ones as other threads have p

Pinetime maybe https://www.pine64.org/pinetime/ https://www.pine64.org/pinetime/ Pebbles were very hackable, but you can't buy new ones as other threads have pointed out.