Chewtle has a teal head, legs, and tail. The top of its shell is a darker shade of blue with a brown trim, with a light brown underbelly, similar to Squirtle and its evolved forms. It has what appears to be a single toe or claw at the ends of each foot. Chewtle has an orange bulb on each of its cheeks, a darker tongue, and a short horn on the top of the head, which it uses to stun its opponents and open them for attack. It has a single large tooth in its mouth, which it can use to bite down hard on targets. It has a pair of nostrils directly above the mouth, and a pair of small eyes with a black rim directly above that, with a single large brow, giving it an almost angry look.
Chewtle snaps at anything in front of it because of an itch of its teething. It is known to attack first with its horn, flinching them before biting down and not letting go.