These two are in the same family, so the differences are in the detail.
Acinonyx jubatus
Panthera pardus
Cheetahs have solid black spots across the body, while leopards have rosettes. The cheetah also has distinctive black tear-mark lines running from each eye to the mouth, a feature leopards lack entirely.
en.wikipedia.orgBuild is distinctly slim, with a deep chest, long limbs, and a small streamlined head.
en.wikipedia.orgBuild is slender and muscular, with relatively short limbs and a notably broad head.
en.wikipedia.orgCoat carries around 2,000 evenly spaced, solid black spots each measuring roughly 3 to 5 cm.
en.wikipedia.orgDark spots are grouped into rosettes, rings rather than solid marks, over pale yellow to dark golden fur.
en.wikipedia.orgTwo solid black lines run from the inner corner of each eye down to the mouth.
en.wikipedia.orgTail ends in a prominent bushy white tuft.
en.wikipedia.orgTail is white-tipped and pale on the underside, with spots merging into bands near the tip.
en.wikipedia.orgBoth are recorded in 4 of the same grid cells across Namibia, so a sighting in that overlap could be either.