The TK700STi is marketed as a 4K projector, but it actually uses a 1920 x 1080 pixel chip with pixel-shifting technology to achieve a higher perceived resolution. This technology, also known as “4K enhancement” or “pixel shifting,” shifts the position of the pixels on the chip to create a higher resolution image.
While pixel-shifting can create an image that appears to have higher resolution than a traditional 1080p image, it is not considered true 4K, which would require a native resolution of 3840 x 2160 pixels. However, the TK700STi can accept and display 4K content, so it can still provide a high-quality viewing experience.