The Ruwenzori sun squirrel lives in mountain forests of the Albertine Rift. It uses the lower forest vegetation and eats mainly fruit.
The typical pattern of H. r. ruwenzorii has a gray back and a white stripe from the throat down the underside. Its long tail has narrow gray and white bands.
It climbs through lower forest vegetation and eats mainly fruit from montane trees. Lichens and insects are also recorded foods.
An extinction-risk assessment has not been added yet.