The body size comparison between the white-lipped turtle and the red-faced turtle is as follows: the red-faced turtle is relatively large and can generally grow to more than 30 cm; while the white-lipped turtle is relatively small, generally only about 20 cm.
It should be noted that when they are young, the two are relatively similar, but when they grow up, they can be clearly different, just like their names. Similarly, the white-lipped turtle has a white mouth and a black-yellow head, while the red-faced turtle has a red head, making it easy to distinguish.