The TK700STi is a 4K UHD (Ultra High Definition) projector, which means it has a resolution of 3840 x 2160 pixels, which is four times the resolution of a standard 1080p Full HD projector.
However, it is important to note that not all 4K projectors are created equal, and some may use techniques such as pixel shifting or other methods to simulate 4K resolution rather than using native 4K resolution.
Based on my research, the BenQ TK700STi is marketed as a true 4K projector with a resolution of 3840 x 2160 pixels, which means that it should be capable of delivering native 4K resolution. However, it’s always a good idea to double-check the specifications or consult with a professional if you’re unsure about a particular product’s capabilities.