Meet Comcast’s new X1 4K UHD HDR DVR Box. It’s Finally Coming

by on May 24, 2017

Stephan Jukic – May 24, 2017

Comcast has finally started to deploy its latest DVR for the company’s X1 platform for ultra HD smart TVs. Called the XG4, the new box offers support for 4K resolution and high dynamic range in video sources according to industry sources.

The new set-top device is made by the company Arris and has as of recently appeared on Comcast’s X1 Xfinity device comparison website. There are also FCC filings which offer further details on the nature of the XG4 box and its 4K UHD capacities.

As for Comcast itself, it has remained pretty quiet about the box, declining to respond to media inquiries though sources who are familiar with the new home entertainment product have said that the company is already starting to roll out the XG4 on a limited scale.

connectivity ports for the XG4 4K HDR box from Comcast

Connectivity ports for the XG4 4K HDR box from Comcast

As for its known specs, the new X1 platform box comes with DVR integration, a total of six tuners, a 500GB hard drive and the aforementioned 4K HDR support specs. The supported HDR format is HDR10 (no Dolby Vision quite yet, if ever) and there is also support for Bluetooth 4.2 coming for the XG4, though from what we’ve heard so far, neither 4K, HDR10 support or the Bluetooth feature will be activated in consumer models of the box until later in 2017 for some reason. The XG4 will only be available through professional certified installation and only for new X1 customers of Comcast’s service.

Furthermore, 4K content will not be available right at launch. This will come later on, first with according to a Comcast source on the Xfinity forums: “Netflix on X1 (Premium Plan), a XG1v4 and a 4K TV. Later phases of 4K will include select XFINITY On Demand, Live TV and DVR content.” The XG4 Box will also be capable of pairing to other Bluetooth devices like speakers and controls when its Bluetooth specs arrive through a firmware update.

Comcast's current Xfinity 4K content sampler for Samsung UHD TVs only

Comcast’s current Xfinity 4K content sampler for Samsung UHD TVs only

In related news, Comcast is also reportedly finally going to start unveiling its long. Long-delayed supposed 4K Xi6 and Xi5 set-top boxes. These have been reported on by us and others on previous occasions as possible imminent releases but so far Comcast has completely left them by the wayside despite its own previous claims about release dates. The Xi5 and Xi6 will also connect to the X1 video service and reportedly support HDR content standards as well.

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  • Chris Christie's Belt
    May 25, 2017 at 10:35 pm

    Most people think they are watching 4k now….


  • Andy
    July 26, 2017 at 3:34 am

    LG OLED TVs have the Xfinity Content Sampler as well.


  • frank marlowe
    August 8, 2017 at 6:51 am

    had one installed last week………..white light on front was on full time……… blinking but box seems to be working properly!! What does blinking light mean?????


    • Stephen
      August 25, 2017 at 9:50 pm

      Hi there Frank. I apologize but since we haven’t reviewed it yet, we can’t say for sure. I’d strongly suggest calling your box installer for details on that, but if it’s working properly, the light is likely a part of its normal functionality unless it’s interfering in some way.


      • marcus jackson
        November 7, 2017 at 8:38 pm

        When are these boxes going to be available in the Houston area?


        • Luis
          October 17, 2018 at 12:47 pm

          Not sure about the Houston area, but is available now in Missouri City/Sugarland area. The rep at the XFinity store said they do not keep them in stock. You will have to call tech support and make your case to get one. And, they will not ship it, contrary to what the rep at the XFinity store also said. Furthermore, they will only only let a tech install it. Not sure why. Based on what the tech did I could have installed it myself. Their excuse was if it did not work, they would have to send a tech and charge you $60.


  • chris
    September 13, 2017 at 5:16 pm

    I self installed mine a couple of days ago and the bluetooth is active and works well. I cant speak to 4k as I still have a 1080p tv. I’m waiting for the 4k oleds to drop in price.


  • Robert
    September 18, 2017 at 9:32 pm

    When will it be available in Houston Texas


  • Jean
    February 17, 2018 at 9:12 am

    Does anybody else have the same issue as me: the previous xFinity boxes had a wider receiver field, whereas the new XG1v4 you need to point the remote directly at it for the signal to be received…
    Frustrating sometimes…


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