WearOS and WatchOS have a couple dozen smartwatch games apiece, with a cult following of gamers who like puzzles and arcade games on tiny screens. However, one type of game would go with smartwatches like PB&J: a virtual pet watch face/ game, like the Tamagotchi or Pikachu wearables of the '90s.
I owned the original Bandai Tamagotchi from 1996 and the Pokemon Pikachu in '98. I have vague, nostalgia-tinted memories of raising my Tamagotchi to adulthood and running with my marathoner dad wearing my Pikachu pedometer to make the little monster happy. They both felt larger and more real than the dozens of pixels that displayed them.
