Nowadays Real state companies are already using 360 pictures or even virtual tours. However, they are mostly using 360 cameras whose resolution is not ideal even for current mobile screens.
The virtual tours below are done with a DSLR camera and a specific equipment. The process is much more complicated (specially post processing) than usual 360 cameras but the quality of the result is unbeatable by any 360 camera in the market (including the most advances Matterport services).
This difference is even more noticiable at high end houses where the ability of zooming in and still keeping a great resolution is priceless for the more demanding customers.
Check below some examples and make sure you click in the full screen button at the top right of each tour to appreciate the quality.