Question: are 40 inch 4k tvs worth it?
Answer: Is 40-43 inches too small for a 4K UHD HDR Smart TV? If you want to get the full effect of the 4K resolution, then yes, unless you're sitting maybe a few feet away from your TV. Based on the typical viewing- distance graph, you'd need to be within about 2–5 feet of the TV to get the full effect of 4K.