from the official specs, i doubt it since it is the same as ua6800x.
this will depend on how well u know and how u will use the androidtv or box.
it is handy to have the tv doing android apps and no need another box.
however, if u hv a very good android box, the audio and video quality will be better.
lastly, tv with androidtv os typically have better hardware and support than those without.
so, weigh and decide which works better for u, incl $.
ah1x is a lower model to al1x.
4k hdr is auto, no need to set anything on tv.
if source is 4khdr, u can see it when u press "display" button of remote.

Coming weekend sharp warehouse sales.