Sony UBP-X700 4K Ultra HD Home Theater Streaming Blu-ray Player Review (2026)

What this player does

The UBP-X700 is a 4K Ultra HD Blu-ray player that also plays standard Blu-ray discs, DVDs, and CDs, giving one tray for an entire physical disc collection rather than needing separate hardware for older formats. It includes built-in WiFi for streaming apps such as Netflix and Prime Video, so it can double as a basic streaming box alongside its disc playback duties, though dedicated streaming devices generally offer a wider and more current app selection. Dual HDMI outputs let the player split video and audio to a receiver and a TV separately, which is useful in setups where an older AV receiver lacks full 4K HDMI passthrough. An Ethernet port, coaxial audio output, and a USB input round out the connection options for wired networking and external audio gear.

Picture and HDR support

This player supports HDR10 for expanded brightness and contrast on compatible 4K discs and streams, and it supports Dolby Vision, a dynamic HDR format that adjusts brightness scene by scene rather than using one fixed setting for an entire movie. Sony's Adaptive Picture feature can also convert 4K HDR content down for viewing on a non-HDR display, which is a useful fallback for a secondary TV that lacks HDR support entirely. Buyers should note that the newer UBP-X700M and UBP-X700U revisions in Sony's lineup also list Dolby Vision along with additional refinements, and confirming exact firmware-level support for a given TV pairing before buying is worthwhile since HDR compatibility can vary by display generation.

Audio format support

On the audio side, the player passes through Dolby Atmos, Dolby TrueHD, and DTS:X bitstreams to a compatible AV receiver for object-based surround sound, which matters for anyone building a Dolby Atmos or DTS:X speaker setup around ceiling or upward-firing channels. It also supports high-resolution audio playback formats including DSD, ALAC, and FLAC for music listening through USB or network sources, extending its usefulness beyond movie playback into a two-channel or multichannel music front end. This breadth of audio format support is typical of Sony's mid-range and higher Blu-ray players and puts the UBP-X700 on par with players costing more from other brands that lack full object-based audio passthrough.

Physical build and size

The player measures about 12.5 by 1.7 by 8.5 inches and weighs roughly 3 pounds, a compact and light footprint that fits easily into a media console shelf or an AV rack without needing significant clearance. That slim height in particular makes it easy to stack near a soundbar or streaming box without a large media cabinet, which suits smaller living rooms or apartment entertainment centers as much as a dedicated home theater room. The lightweight build is typical for a disc player in this class, where the tray mechanism and circuit board do not demand the heavier chassis used in AV receivers or powered speakers.

Who should buy this player

This player suits anyone building a home theater around a physical 4K Blu-ray, standard Blu-ray, and DVD collection who wants Dolby Vision and HDR10 support without paying for Sony's newest revision. It is a reasonable value pick when found at a lower price than the current UBP-X700M or UBP-X700U models, since the core disc playback and HDR support carries over. Buyers who want the latest firmware, the newest streaming app selection, or the most current Sony support window should compare pricing against the newer X700M and X700U revisions before choosing this earlier version.

Frequently asked questions