DJI Avata video resolution and framerate depend on which generation of DJI Goggles it is used with.
With DJI Goggles 2:4K@50/60fps2.7K@50/60/100fps1080p@50/60/100fps
With DJI FPV Goggles V2:4K@50/60fps2.7K@50/60/100/120fps1080p@50/60/100/120fps
DJI Goggles 2 support a more comprehensive range of features like head tracking and motion control with DJI Avata, but DJI FPV Goggles V2 can support the higher framerate of 120fps.