The Neanderthal species is inferred to have been largely similar to Homo sapiens, but with some distinct features as listed below.
Neanderthal adult height averaged about 160cm, and average body mass is estimated at about 60-85kg
Most data suggest that the Neanderthals had an extended period of growth similar to, or only slightly accelerated compared with, Homo sapiens.
Skeletal data suggest that it was rare for a Neanderthal to reach 50 years in age.
This is assumed to have been largely similar to that of Homo sapiens, but with the possibility of a somewhat higher metabolic rate.