When it comes to high-end televisions, LG TVs are often at the top of many consumers' lists. Two models that have gained significant attention in recent years are the LG 75QNED99UPA and the LG 75NANO90UPA. While both models offer impressive features and performance, there are some key differences between them.

Firstly, let's take a look at the display technology used in each model. The LG 75QNED99UPA features QNED (Quantum Dot NanoCell Emitting Diode) technology, which combines the benefits of quantum dots and nano-cell technology to produce incredibly vivid colors and contrast. On the other hand, the LG 75NANO90UPA uses NanoCell technology, which also offers excellent color accuracy and contrast, but may not quite match the level of the QNED model.

In terms of resolution, both models offer 4K UHD (3840 x 2160) resolution, providing a crisp and detailed picture. However, the LG 75QNED99UPA has a slightly higher pixel density, which can result in an even sharper image.

Another key difference between the two models is their refresh rate. The LG 75QNED99UPA has a refresh rate of 120Hz, while the LG 75NANO90UPA has a refresh rate of 100Hz. This means that the QNED model can display smoother motion and is better suited for fast-paced content such as sports and action movies.

When it comes to HDR (High Dynamic Range) support, both models offer a range of formats including HDR10, HLG, and Dolby Vision. However, the LG 75QNED99UPA also supports Dolby Vision IQ, which can adjust the picture settings based on the ambient light in the room for an even more immersive viewing experience.

In terms of smart TV features, both models run on LG's webOS platform, which offers a user-friendly interface and access to a wide range of streaming services including Netflix, Amazon Prime Video, and Hulu. However, the LG 75QNED99UPA has a slightly more advanced version of webOS, with additional features such as multi-device control and improved voice recognition.

Finally, let's take a look at the design and build quality of each model. Both TVs have a sleek and modern design, with thin bezels and a sturdy construction. However, the LG 75QNED99UPA has a slightly more premium feel, with a higher-quality metal finish and a more minimalist aesthetic.

In conclusion, while both the LG 75QNED99UPA and the LG 75NANO90UPA are excellent choices for anyone looking for a high-end TV, there are some key differences between them. The QNED model offers improved display technology, a higher refresh rate, and more advanced smart TV features, making it a better choice for those who want the very best picture quality and performance. However, the NanoCell model is still an excellent option for those on a budget or who don't need the absolute latest and greatest technology. As with all LG TVs, both models offer exceptional picture quality and a range of innovative features that are sure to enhance your viewing experience.