I need help on determining which is the best & cheap 4K HDR tv in malaysia right now to match with my ps4 pro.

The following criterias are needed:

4K resolution (3840x2160p)
HDR 10bit
Input lag <30ms if possible

My budget is < rm4000.
Tv size perhaps 49" or lower

I understood that some tv offer different HDR results and when we use HDR mode, the input lag will be increased! But can be rectified by using Game Mode.

So right now i had my eye on these 2:

Sony X800D 4K HDR tv 43" - 43" using VA (vertical alignment) panel which offers best color quality, 49" using IPS
Samsung KS6000 4K HDR 43"

Or should i just stick to 1080p since 4K HDR is still new at the moment? 1080p on ps4 pro to me aleady looked gorgeous and quite smooth when playing my Battlefield 1. Currently, i am using samsung 40" UE5000 LED tv.

Summoning all 4K tv sifus and otais to give some insights thanks! 

agreed on the smooth frame rate > resolution, but this is 2017 and perhaps 4K graphics should be the norm by now.

Samsung KS7000 costs quite a bomb. Saw one at SenQ priced at >RM6k for a 55".

I surveyed around at Harvey Norman and SenQ Queensbay yesterday and Sony XD800 was nowhere to be found. Well, there is XD800 but the 49" though whereas i am looking for the 43" version.
Senq just sell XD700D which is it does not have the TRILIMINOUS color system (give higher quality color) and XD850D is wayy over my budget (RM5,999 for 55").

Yeah, saw Harvey Norman is doing some stock clearance yesterday, selling off many LED TVs and some 4K tvs are cheaper prices.

Yeah perhaps i will wait a much while longer and to see whether better 4K HDR tv with very affordable price will be available soon.

But if you guys have other inputs, pls feel free to contribute in this thread.