Some interesting details from OPPO's FAQ:
Does the UDP-203 support Dolby Vision?
At release, the UDP-203 will have support for HDR10. The UDP-203's hardware was designed with Dolby Vision support in mind, however, and customers can expect a firmware upgrade in early 2017 that brings Dolby Vision support to the player.
Does the UDP-203 have any built-in streaming services such as Netflix or VUDU?
In order to provide a premium user experience with quick start-up times and fast response, the UDP-203 is designed with a purist approach in mind for disc and file playback, and so it does not carry internet video and music streaming apps. Instead, an HDMI 2.0 input port that supports UHD resolution is available for users to connect an external streaming device. This approach affords users the flexibility to choose from a wide range of streaming devices and easily upgrade as streaming technologies evolve, while still taking advantage of the UDP-203's audio and video processing capabilities.
Is the UDP-203's main HDMI output 2.0, 2.0a or 2.0b?
In our documentation, we are not distinguishing the a/b revisions of the HDMI 2.0. We simply use the HDMI 2.0 term to show that the player can output video at the 18Gbps data rate. If we must use a revision number, currently the main HDMI output on the UDP-203 is HDMI 2.0a since the difference between the 2.0a revision and initial 2.0 is the support for HDR, and the player support HDR. When we upgrade the player to support Dolby Vision in the future, the output will become HDMI 2.0b compliant since supporting HLG (Hybrid Log Gamma) HDR meta data is the difference between 2.0b and 2.0a. The HDMI input and output are HDCP 2.2 compliant.
Can the UDP-203's HDMI input support 4K?
Yes, the UDP-203's HDMI input is capable of receiving a 4K signal. However, at this stage it is not currently able to accept HDR. There is a possibility that a firmware upgrade may provide this functionality in the future, but there is no tentative date for such an upgrade. If you have a newer streaming device such as a Roku Ultra or Chromecast Ultra that supports 4K with HDR, and you want to view HDR content, it is recommended that you connect these devices to an HDMI input on your display or AV receiver that supports HDR.
Can the UDP-203 strip HDR metadata from 4K discs and media files while maintaining the BT.2020 color space?
Yes. For customers using projectors or older 4K displays that do not support HDR, yet still want to take advantage of the BT.2020 color space, the UDP-203 is capable of stripping the HDR metadata from the signal while still maintaining the BT.2020 color space output.
Will there be a UDP-205?
Yes, the UDP-205 will be released in early 2017, around 2-3 months after the UDP-203. Details for this particular model will be available at a later date.
Source:
http://www.oppodigital.com/KnowledgeBase.aspx?ProdID=UDP-203