The Ecliptic watchface is for amateur astronomers and stragazers. It displays the ecliptic circle with the Sun on top, shows positions of 5 brightest planets - Mercury (☿), Venus (♀), Mars (♂), Jupiter (♃) and Saturn (♄), as well as the Moon position, relative to the Sun. It correctly draws the current Moon phase.
The use is pretty simple. To the left of the Sun you see planets that are now visible in the evening. To the right there are planets you can see in the morning. In the bottom there are planets visible all night long.
Planetary data isn't loaded from the internet. Orbital elements of each displayed celesitial body are built-in, all calculations are performed locally. GPS data isn't required because the app operates with ecliptic coordinates that do not depend on your current location (unless you are in space far away from Earth).