Streaming 4K requires about 25Mbps. If your Wi-Fi is slow, the device might downscale to 1080p automatically. Was this "VEC550 4k" a projector you recently bought, or Is a 4K Projector as Good as a 4K TV? - Xgimi

The is a strong choice for buyers looking for a "step up" from standard budget TVs. Its primary selling points are its color accuracy (due to Quantum Dots) and its gaming capabilities . While it may not have the deep blacks of OLED technology, it offers excellent value for a vibrant, high-contrast 4K viewing experience.

The Optoma 4K550 is a professional-grade DLP projector designed for corporate and large-venue environments. : Resolution : Native 4K UHD ( ) with 8.3 million distinct pixels.