Sony UBP-X700U 4K UHD Blu-ray player home theater in a box

4K UHD Blu-ray player with Dolby Vision

The Sony UBP-X700U is a 4K UHD Blu-ray player built into a home-theater-in-a-box system for buyers who want disc playback and streaming in one unit. It reads 4K Ultra HD Blu-ray discs, standard Blu-rays, DVDs and CDs while also handling the most common high-definition video and audio file formats. The player upscales lower-resolution content toward 4K output and supports the BT.2020 colour space for a wider range of colours than conventional signals provide.

Dual HDMI outputs and HDR 10 support

Dual HDMI outputs separate audio and video paths, letting you send video straight to a display while routing lossless audio to an AV receiver or soundbar without HDCP handshake conflicts. HDR 10 playback delivers up to 100 times the peak brightness of a standard SDR signal while preserving deep, detailed blacks. Dolby Vision adds dynamic metadata that adjusts highlights, shadows and colour on a scene-by-scene basis for a more cinematic presentation.

Closed captions and sustained disc playback

Closed-caption decoding is built in for discs and supported streaming apps, so dialogue and audio cues remain accessible without external hardware. The player maintains steady performance during extended movie sessions, reading 4K UHD Blu-ray discs continuously without thermal throttling or fan-noise spikes that would interrupt quiet passages. Streaming apps and local network files play back with the same stable output, making it reliable for back-to-back viewing.