no bias. the 4K TV running at 4K is better looking. but for ur everyday use. I like the way the W900a runs better. it's essentially the same TV fam. just the 1080p version..they both have the same technology aside from the resolution. they both have Sony's Trilluminous display. so they both are great with color. I just like the way everyday shyt looks better on the W900a. the response time for gaming is better on the W900a. and I like the way the blacks look on w900a better for some reason. son. Ive had so much time with both tv's. Ive tested them out. the refresh rate is higher on the W900a as well but like I said it doesn't really matter when it comes to Sony. BUT..I will say that overall the W900a is smoother when in comes to motion as well.
