Heidelbergensis are similar to H. sapiens and H. neanderthals in that they all three have a large brain, small teeth, and obligate bipedialism. Between the three, Heidelbergensis are more similar to Neanderthals in that they are shorter than H. sapians, more robust, large brow-ridges, a slightly protruding face and lack of prominent chin.
Homo sapiens, have the smallest brows of any known hominin, and are tall and lanky, and have a flat face with a protruding chin. H. sapiens have a larger brain than H. heidelbergensis, and a smaller brain than H. neanderthalensis, on average. To date, H. sapiens is the only known hominin with a high forehead, flat face, and thin, flat brows.