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Both models are similar to each other in most of the specifications as they both support 4k UHD (3840x2160) resolution and HDR. The key differences is that the NANO91 does have a higher speaker power rating of 40W vs. 20W on the NANO90. And the AV1 video format on the NANO91 is has a higher bit rate capable of 8k@60p, and 4k@120p versus just the 4k@60p on the NANO90. The TV stands are different, one stand in the middle of the TV on the NANO91, and two leg stands on opposite ends of the TV on the NANO90. I hope that you found this information helpful on selecting your TV. Thanks for choosing LG. ^Jennifer
Sorry, there was a problem. Please try again later.FIRST ONE WAS DAMAGED, THIS ONE HAS AWESOME PICTURE CLARITY WE LOVE IT
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