Question: is the pokeball plus compatible with pokemon sword and shield?
Answer: Well, although it doesn't work as a controller in this game, the little Poké Ball Plus device is compatible with Pokémon Sword and Shield, albeit in a more limited way. It is the only way to unlock the mythical Pokémon Mew in Pokémon Sword and Shield, although you'll probably need a brand new Poké Ball Plus.