•   Overview
•   Advantage of LG 55NANO75UQA
•   Advantage of LG 75SM9970PUA
•   Common Strengths and Weaknesses
•   Selected Features
•   Specifications

Here we are comparing LG 55NANO75UQA to LG 75SM9970PUA to reveal their common strengths and weaknesses as well as the differences between them which will help you in making a correct decision before the purchase. The LG 55NANO75UQA has 4K UHD (3840 x 2160) and the LG 75SM9970PUA has 8K UHD (7680 x 4320) resolution and they both support HDR.

We have evaluated the TVs from available features and specifications. LG 75SM9970PUA gets higher overall score in our ranking system which is based on the display specifications, video, audio and other features, connectivity and format support.

This section shows the features and specifications which are the reason to choose LG 55NANO75UQA over LG 75SM9970PUA.

This section shows the features and specifications which are the reason to choose LG 75SM9970PUA over LG 55NANO75UQA.

Nano Cell Technology

Both LG models use nanocell technology on their LCD displays. This technology uses particles to absorb unwanted light wavelengths and enhance the purity of the red and green colors displayed on the screen. In addition, they create subtler, more accurate colors that stay true, even at wide viewing angles. So, even if the whole family is gathered around the TV, everyone has the best seat in the house, whether they’re front and center, or across the room and off to the side.

IPS Panel on LG 75SM9970PUA

LG 75SM9970PUA has an in-plane switching (IPS) panel. Such panels are not commonly used in LCD TVs as they suffer from light leakage which lead to the lower contrast and poor HDR experience. However, this type of panels can provide better viewing angles and color accuracy compared to the VA panels.

Full-Array Local Dimming on LG 75SM9970PUA

LG 75SM9970PUA has Full-Array Local Dimming technology with multiple zones throughout the display. Individual zones of LEDs can light up independently which enhances black levels, shadow details and decreases level of light bleed in dark parts of the image. This gives higher contrast with increased picture quality which is very important for HDR reproduction. Higher number of zones gives better control over local dimming and less blooming around the bright objects and subtitles. LG 75SM9970PUA has 120 zones.

HDR10

LG 55NANO75UQA and LG 75SM9970PUA support HDR10 which was announced on August 27, 2015, by the Consumer Technology Association and uses the wide-gamut Rec. 2020 color space. It is not backward compatible with SDR. It sends static metadata via video stream to the TV which calibrates its screen brightness and color according to that. HDR10 is technically limited to a maximum of 10,000 nits of brightness and uses 10-bit color which corresponds to 1024 shades of the primary RGB colors.

Dolby Vision on LG 75SM9970PUA

LG 75SM9970PUA also supports Dolby Vision which is an update to HDR10 by adding dynamic metadata that can be used to more accurately adjust brightness levels up to 10,000 nits on a scene-by-scene or frame-by-frame basis and supports up to 12-bit color depth (4096 shades of RGB) and 8K resolution.

And in the end we display all the specifications which are present for both models.

Note: The following table shows only those details which are applicable for both models and excludes the ones that are applicable for only one model. If you want to see a full list of specs for each model please visit their individual pages here - LG 55NANO75UQA and here - LG 75SM9970PUA.