the Fitbit mobile app
Astrolabe - Watch face that shows the place in the solar system with many options
*** Watch face is extensive; it takes a few minutes to load.
Provides intuitive graphical display including phase of the moon, and relative position of the sun and the moon in the sky.
Attractive, highly functional health oriented watch face; providing fast access to the most interesting statistics.
Has a very useful flashlight mode with configurable intensity.
Tracks ~hourly step count and indicates performance at reaching hourly 250+ step goal.
More details may be found at https://gomezgames2b.com/Astrolabe.php
This is a paid app. After a 120 hour free trial, it requires a one-time payment of $2.97 to keep using it.
Try ILuvChrono too! at https://gallery.fitbit.com/details/bda6f514-3946-49ba-a4ed-75e8470ab034