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2 . High Definition
High Definition 1920 x 1080 as stated above it surpasses HD resolution by a significant margin, currently integrated into Smartphones with most 5-inch displays.
Quad High Definition, also known as QHD, has a resolution of 2560 x 1440 pixels, four times that of HD, with pixels exceeding 2000 hence referred to as 2K. Currently, phones like Oppo Find 7 and LG G3 utilize 2K 5.5-inch displays with pixel densities up to 538ppi.
4 . 4K or Ultra High Definition
Similar to 2K, the name 4K also stems from the pixel count exceeding 4000. However, 4K has two different resolutions: 3860 x 2160 and 4096 x 2160. With such screen resolutions, we anticipate seeing them in Smartphones in the near future.
So we've now explored the four highest-quality screen types available today. As screen resolutions continue to rise, so does our battery usage. However, higher resolution screens and larger displays typically come with enhanced battery life, just like the LG G3, which boasts impressive battery life despite utilizing 2K technology.
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