the Fitbit mobile app
Turn your watch into a miniature picture gallery or image carousel! You can have up to 24 images of your family, friends, pets, ID cards (etc) just a twist of the wrist away.
Each image can have a caption, and the slideshow can be advanced automatically or manually (by touching the sides of the screen). The time and date can be displayed, and can be coloured and positioned differently for each picture. In addition, a different activity measure can be displayed on each picture.
To get started, install Slideshow Plus and then go to the clock face settings page on the Fitbit app on your phone/tablet/computer. Be aware that image transfers can take a minute or more.
Some settings can also be adjusted on the watch. To access these, tap the centre of the watch screen, or press the upper right side button (if available), while the slideshow is playing.
Slideshow Pro costs $1 plus tax.