The recommended distance for watching a 4K TV is 1.5 times the TV's vertical screen size.
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The naked eye can't differentiate individual pixels when watching a 4K TV from this distance. This means that pixels effectively disappear when viewing 4K images. Thus, creating an impression of watching the image with the same detail and resolution as real life.
Check the table below for further details about the recommended viewing distance when watching a 4K TV.
TV size Viewing distance range (approx.)
43 inch- 35 inches (2.95 feet)
49 inch- 39 inches (3.28 feet)
55 inch- 39 inches (3.28 feet)
65 inch- 47 inches (3.94 feet)
75 inch- 55 inches (4.59 feet)
85 inch- 63 inches (5.25 feet)