https://www.theverge.com/2018/7/12/17563670/microsoft-xbox-one-dolby-vision-support

Microsoft is preparing to add Dolby Vision support to its Xbox One S and Xbox One X consoles. The addition will mean Microsoft’s consoles join the Apple TV 4K and Google’s Chromecast Ultra as the only streaming devices that currently support both Dolby Vision and Dolby Atmos. Microsoft is testing out its Dolby Vision support with Xbox Insiders right now, and it appears to be limited to streaming apps for now. Netflix is one of the first apps to be updated with Dolby Vision for the Xbox One S and Xbox One X, and it’s not clear if Microsoft plans to extend this to Blu-ray discs too.

Dolby Vision is widely considered to be more superior to the current HDR10 support found on the Xbox One. Dolby Vision adjusts the brightness and color of scenes with metadata, and supports up to a 12-bit color depth and higher peak brightness targets than HDR10. While you won’t necessarily see an immediate difference on current TV sets, Dolby Vision support (alongside HDR10) on the Xbox One makes it more future proof in the current HDR standards war. Microsoft’s main rival console, Sony’s PlayStation 4, still doesn’t fully support Dolby Atmos or Dolby Vision.