Board Thread:Manga/@comment-5774380-20160808233126/@comment-5774380-20160809224953

PlasmaCutterPHD wrote:

No, it's not. The Smiling Titan, as in the one that ate Carla and Hannes, had far more teeth that were noticably straighter, skinnier, and less jagged than the Titan from Eren's dream. Compare the two yourself.

That's obviously the Smiling Titan. The only differences between the two pictures are the number of teeth, but he's just being depicted inconsistently. It has less teeth in the manga, and also Armin's Titan has a smaller mouth with even less teeth, barely any cheeks and lacks a nose and skin in several parts of his face.