Pokémon GO Plus + is shaped as a hockey puck PokéBall, with the iconic red and white colouring on top, and a large “Main Button” button that you use to interact with the device. There is actually another button hidden on the top side called “Top Button”.
The device weights approximately 50 grams, and is 6.5 cm (2.55 in) wide and 1.8 cm (0.72 in) thick. A relatively large device compared to the original Pokémon GO Plus device!