4k output/config on kodi for android tv

Hi guys,

I have a Sony x930d which 4k and HDR.
Whilst looking through the video calibration options on kodi v16 (android TV), I have found that it is only recognising my device (TV) as 1920 x1080 @ 60hz.
This obviously incorrect as my TV is cabable of 4k/UHD (i.e. 2160p).

I have tried checking this also whilst pausing on some 4k movies but it still shows the same on the video options bit.

Can anyone advise how to sort this out?