The Pokémon GO Plus works only with Pokémon GO, and requires a connection to the game to function.
The device works with iOS or Android via a Bluetooth connection. Users are notified of nearby Pokémon and PokéStops by vibration and colored light cues. Limited actions may be taken by pressing the device's button.
Pokémon GO Plus is an optional accessory to enhance gameplay. Using a Bluetooth connection, Pokémon GO Plus notifies you of nearby Pokémon and PokéStops without having to look at your phone.