A:Answer Yes, the Sony UBP-X800 does support 3D video. However, you'll need a 3D TV and probably 3D glasses to enjoy 3D content in 3 dimensions. Sony's 2017 LED and OLED TV's don't support 3D any longer. UltraHD 4K HDR TV's produce an image superior to conventional 3D TV's without any need for head gear. Moreover, the Sony UBP-X800 plays 4K disks and displays the content in native mode 4K, not upscaled 4K resolution. You'll need this player if you wish to use your 4K TV to its fullest advantage. You'll also need an HDMI cable that supports 18 Gbps (which necessarily supports 3D, ARC, HDR10, and Dolby® Atmos and DTS:X among other things).