Apple has released a bunch of “ guided tour” videos that introduces people with the main features of the upcoming Apple Watch . According to the Verge, Apple has published four videos walking potential buyers through use scenarios and key features.

The video, “welcome to Apple Watch”, is an overview of the main hardware and software concepts that include the digital crown, friends button, glances and force touch.

The next three videos are a bit shorter, and focus on customizing the watch face, using the messaging app, and the oddball “digital touch” features that let users to send quick sketches, tap patterns, or heartbeat to other Watch users.