Play Pokémon GO without checking your smartphone screen. When a Pokémon appears nearby, Poké Ball Plus will light up and vibrate. A simple button press lets you throw a virtual Poké Ball, and different LED light patterns will let you know if you have caught the Pokémon.
As long as your Poké Ball Plus is connected to your smartphone and the Pokémon GO app, it will also count your steps so you can hatch Eggs and get Candy for your Buddy Pokémon.