same fear here also bro..I have shown interest on Micromx UHD TV but got to know that it is not original UHD TVs.so fear is the we may face same situation with these TVs also.
The TV panel should be good, bro. Resolution might not be a big thing now as technology evolve. But it's the performance of a Micromax UHD TV and Samsung UHD TV, that should matter.
The colour array, contrast, darkness of screen. That all should be in consideration.
A UHD TV with full of noise in the picture and distorted colour won't be a surprise if you find it in a cheap TV.
OLED TVs are still expensive, maybe partly because of the resolution but mainly because of the panel.