What’s the meaning of Ultra resolution? It’s for enhanced Field of View (FoV). If turned on, the camera will have a wider view angle. Related articles Which FOV viewing angle mode can be available under each video resolution in the camera? How do I select 4K 60fps? Why does the camera become so hot when it's recording? (YI 4K+ Action Camera) What are the video resolution modes? How many metering modes are there and for what scenes are they good for?