Highlight the game icon on the HOME Menu and press the .
While the eShop digital version (NSP) can be played with just Joy-Cons held in hand, the Let's Get Fit Sports Strap Set (sold separately or bundled with physical versions) is recommended for precision. Let’s Get Fit Switch NSP [Update] (eShop)
One strap for the arm and one for the leg to track full-body movements accurately. Highlight the game icon on the HOME Menu and press the