There are a few terms that have become part of the everyday vernacular of smart devices. However, these terms aren’t always intuitive unless you a) already know them or b) experience them with the device in question.
Swiping
You can swipe left (from the right of the screen to the left) or right (from the left of the screen to the right). The gif below demonstrates one swipe right and then multiple swipes left (“swipe right” has become popularized from the app Tinder as it indicates “liking” someone). This interaction is also possible on the Fitbit. You can navigate from the ‘Home’ screen by swiping left to see a series of activity options.
You can swipe up (from the bottom to the top) or swipe down (from the top to the bottom). The gif below shows the motion of “swiping up” (apparently, swiping up is now popular on Instagram ad stories as swiping up will bring you to the website for the advertisement).
Tapping
You can ‘tap’ the screen to make a selection based on the icon you are tapping. In addition tapping could mean ‘next’ on some of the Fitbit menus. In these cases you aren’t necessarily making a selection or moving to an entirely new menu, rather you are showing various options for the same display.