This Samsung BD-J7500/ZA Blu-ray player allows Web streaming. To build a complete 3D home theater system, we recommend you purchase a 3D TV, 3D glasses designed for the TV, high-speed HDMI cable and an A/V receiver that is compatible with 3D products.
It works as advertised. It responds very quickly and effective. Cannot comment on the 4K up conversion, because I did not try it. I have no 4K display. I buy it because it provide 7.1 analog audio outs.