A 30-second teaser video shown during the company’s press conference at Mobile World Congress Sunday was released by Samsung.

The video was brief, with a lot of quick cuts of generic phone outlines shown in the form of everything from schematics to, er, cake. “This is a phone” it says, before adding, “This was a phone.” All of a sudden, the silhouette expanded at the top and bottom edges, suggesting a taller, more narrow phone. The March 29 launch date then appeared alongside the black and white image., but that’s about it:

With strong competitors like this, Samsung will need to bring its A-game.