Concluding Remarks

The NVIDIA SHIELD Android TV is based on the Tegra X1, which is, without doubt, a very powerful SoC. Ostensibly designed for mobile platforms - particularly tablets - Tegra X1 none the less finds itself in a very interesting (and perhaps unexpected) role as the heart of a set top box. In the SHIELD Android TV, the thermal limits are relaxed and there is no battery life to worry about. Therefore, the SoC performance handily surpasses the currently existing competition in the over the top set top box market.

Android TV

Our experience with Android TV was a mixed bag. There are definitely more things to like about it compared to Google TV from a few years back. Advancements in the Android ecosystem and more powerful STB platforms have contributed to the positives. The removal of the web browser from Android TV clears up things for the average consumer.

  1. A good 10-ft UI is essential for interaction on a TV. Subjectively speaking, the Leanback Launcher provides an acceptable experience.
  2. Android TV enables cord-cutting with a "Live Channels" app that takes advantage of TV tuners with IP interfaces and provides an interface to watch them on a television (allowing the TV tuners / antenna to be placed somewhere suitable for good reception and not necessarily near the TV).
  3. Google's voice search (with cross-app searching capabilities) is quite advanced.
  4. Android TV comes with Google Cast - a feature that allows devices like the SHIELD to act as Chromecasts
  5. Android TV comes with an improved selection of relevant apps compared to Google TV from a few years back.
  6. Android TV is more open than any other Smart TV platform - it brings along a lot of the advantages of the Android ecosystem
  7. Android HID support ensures many USB peripherals such as mice, keyboards and webcams are compatible with Android TV devices

On the other side, Android TV still suffers from trying to do too many things at the same time. The 10-ft. UI could be modeled on the default Kodi skin, without the 'Recommendations' row trying to be an advertising window.

  1. Android TV needs better configurability - for example, users should be allowed to change the order of rows in the Leanback UI or even remove some of them altogether. Not everyone wants ad-like 'Recommendations' as soon as they power up the unit. On Android, the 'Notifications' feature is often abused to push advertisements. Users need more control. The option to control the fading and distance between each row in the launcher would also be nice to have.
  2. The Android TV framework needs to do away with forcing 60 Hz display refresh rate for the system. Ideally it should be synced to the frame rate of the content being played back (whenever possible). 3:2 pulldown of 24 fps material for display at 60 Hz creates judder that could be irksome for certain consumers.
  3. Android TV could do with better stability - We encountered a few 'Leanback Launcher has stopped' messages. In certain scenarios, users would also appreciate better responsiveness - for example, the 'fetching recommendations' at startup doesn't allow the user to navigate to the rows further down for a few seconds          

SHIELD

The NVIDIA SHIELD Android TV has plenty of plus points to talk about, once the target market is understood. Simply put, the powerful nature of the platform makes it the undisputed flagship Android TV box right now.

  1. Netflix 4K streaming is flawless. It is the only 4K Netflix certified STB we are aware of. Everything so far has been using in-built Smart TV apps.
  2. The Android TV support is comprehensive. Microphones and headset ports in both the gaming controller as well as the Remote enhance the user experience when combined with the voice search capabilities. The high-performance SoC ensures smooth navigation in the UI.
  3. The SHIELD has full support for decoding HEVC Main and Main10 profile streams. These are the only H.265 profiles that matter for end consumers
  4. Unlike some other 'HDMI 2.0'-capable SoCs, the SHIELD has extensive HDMI 2.0 compatibility with HDCP 2.2 support. It is also firmware upgradable to HDMI 2.0a (HDR extensions). In fact, it fits all our criteria for a future-proof 4K HDMI source.
  5. The CEC capability works seamlessly. A swipe of the NVIDIA logo on the gaming controller and everything in the playback chain turns on.
  6. The bundled gaming controller and the SoC's GPU performance enables Android gaming to go beyond the current casual, free-to-play ecosystem
  7. The device has excellent thermal performance and acceptable / reasonable acoustics despite being an actively cooled device

The SHIELD unit does have scope for improvement. Fortunately, all of them seem to be firmware-dependent. Given NVIDIA's track record with software updates on the PC side, it is likely that most of the show-stopper issues will get fixed soon.

  1. The AV receiver compatibility list needs to be expanded. Dolby Digital Plus bitstreaming (from Netflix) was a no-go with a Pioneer VSX-32, though such cases will soon get fixed via firmware updates.
  2. NVIDIA has skimped on licensing for various audio and video codecs keeping the target market in mind. Only H.264, H.265 and VP9 decode have been licensed on the video side. On the audio side, we only have Dolby Digital and Dolby Digital Plus bitstreaming support. The absence of HD audio (DTS-HD MA / TrueHD) bitstreaming is particularly disappointing, given the capabilities of the core platform. NVIDIA talked about making available a 'codec pack' in the Play Store for users needing hardware acceleration for certain codecs. We will have to see how that plays out.
  3. NVIDIA's experience with HTPC GPUs has not been translated to the SHIELD Android TV due to the limitations of the Android TV framework. We expected NVIDIA to work around that, providing differentiation aspects with local media streaming and video post processing in addition to the 4K Netflix feature.
  4. It would be nice to have better compatibility with local playback apps (like Kodi, MX Player and VLC). NVIDIA indicated that they are working with the developers already. Hopefully, we should see local media playback apps behave better with the Tegra X1 in the coming months.

Moving on to the pricing aspect, the non-Pro model that we reviewed here is priced at $199. This includes the gaming controller (other Android TV boxes treat it as a separate purchase) and a high-speed HDMI cable (supporting 4Kp60 signals). Meanwhile, for a short introductory period, the $199 price point will include a $30 Google Play store credit and a 90-day subscription ($30 value) to Google Play Music All Access.

Otherwise, not reviewed today is the Pro at $299, which throws in a 500GB internal hard drive and a bundled copy of Borderlands. The Pro's further $100 price tag is no doubt going to draw some comparisons to the current-generation consoles - and for good reason, witht he 500GB Xbox One starting at just $50 more - and may be a harder sale for NVIDIA. The large hard drive is definitely wel suited towards gaming, however possibility of also using it for DVRing TV programming through the Google Live Channels app offers an interesting alternative for all of that space.

Final Words

The SHIELD Android TV is a reasonably priced premium 4K over-the-top set top box with gaming performance that well exceeds any other STB. In that respect, given the rising importance of OTT streaming and casual gaming in the living room, NVIDIA has achieved what it set out to do.

However, HTPC enthusiasts expecting the SHIELD to be a device that combines leading-edge OTT capabilities with perfect local media playback will be disappointed. The constraints imposed by the closed nature of an embedded system (compared to PCs) mean that the situation is unlikely to alter in a major way in the near future.

Consumers need to get their expectations right - the SHIELD Android TV needs consideration only if OTT streaming (4K Netflix, in particular) and gaming credentials are important. Keep in mind - if you are getting it for 4K Netflix, ensure that each HDMI port in your display chain is capable of both 4Kp60 and HDCP 2.2.

Power Consumption and Thermal Performance
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  • Morawka - Thursday, May 28, 2015 - link

    the chip and the wires (hdmi) have the necessary bandwidth, so shouldn't be a issue.
  • Haydon987 - Thursday, May 28, 2015 - link

    Shouldn't be in the case of dozens of currently existing devices, but in every case so far of any publicly available hardware I've seen, all encrypted content comes out 4:2:0 at 4k, so it would be nice for a vendor to acknowledge if it plays 4k hdcp 2.2 at 4:4:4 or just plays unencrypted stuff (like games, menus, ads, etc.) at 4:4:4 at 4k. Until a vendor specifically states it, I have my doubts. Sure all the features are listed to make it sound good to people who don't look too deeply into it, but they don't state when the features are interoperable.

    It's like a person listing for a spec sheet about themselves:
    1. I can run 17 miles per hour
    2. I can run 25 miles

    This does not mean that this person can run 25 miles at 17 miles per hour. They are just 2 separately listed specs. Chances are they only maintain that speed for a few seconds.

    In this case what is most likely:
    1. I can play without color compression (4:4:4)
    2. I can play protected content at 4k (hdcp 2.2), but I won't tell you if that is compressed or not.
  • ganeshts - Friday, May 29, 2015 - link

    That is definitely an interesting question, but it is somewhat moot.. let me explain:

    Getting specs out of the way, the SHIELD does support RGB 4:4:4 at 4Kp60 on the HDMI port.

    Now, all video content that consumers play back - Netflix or Blu-rays and the like - they are all encoded in 4:2:0 - In this case, the consumer has nothing to gain or lose whether the conversion to 4:4:4 is done on the source side or the sink side. So, HDCP 2.2 with just 4:2:0 support is fine.

    On the other hand, for professional applications, where content is processed in 4:2:2 or even 4:4:4 format, it will be a problem - but, it is likely that the workflow process in that case doesn't involve protected content - the protection is applied / needed only on the consumer delivery side.

    Again, this is an interesting aspect, and one that I will definitely be questioning HDMI source / sink vendors on. It is just that it doesn't matter for consumer applications.
  • 457R4LDR34DKN07 - Thursday, May 28, 2015 - link

    I'm interested in trying this with a hdhomerun prime with the live tv app. Does this android tv device support mpeg 2 decoding?
  • 457R4LDR34DKN07 - Thursday, May 28, 2015 - link

    "The typical media library also includes TV programs that are interlaced MPEG-2 (for example). The SHIELD is currently not a good solution for such a case."
    Thanks, not for me then
  • Ryan Smith - Thursday, May 28, 2015 - link

    The Live Channels app supports hardware MPEG-2 decoding, including deinterlacing. That functionality just isn't available to other media playback applications, since it was licensed for just the Live Channels app.
  • DanCar - Thursday, May 28, 2015 - link

    The recommendation row can be turned off partially or fully in settings -> System Preferences (3rd row) -> home screen
    You can select which sources to enable and disable.
  • ganeshts - Saturday, May 30, 2015 - link

    Somehow, I am not able to follow the path you are referring to..

    Under settings, I have Device > System, and under that nothing about Home Screen.. Do you have a video or set of screenshots showing the path?

    I know that it is possible to go into the settings of a particular app and turn off the Notifications for that app - on Android TV, that turns off the 'Recommendations' - this is what I had done for the YouTube video showing the Android TV UI. The Recommendations row doesn't seem to have an option to turn it off completely..
  • BuddyRich - Thursday, May 28, 2015 - link

    I was hoping they spent the money and licensed the codecs but no HD Audio or DTS (or MPEG2 or VC1) is a bummer. At least in the case of the video codecs the CPU is fast enough to decode in software. Will not replace my HTPC. Its funny they license them for their videocards, including their cheapest passive ones but not their premium set-top box. And the box doesn't even have to decode it, just pass it through to a receive, that shouldn't require a license at all.

    One thing that was unclear in your review though, if I use HDHomerun/Live TV app will it decode and deinterlace MPEG2 via hardware since the app is licensed? If so is this supported on Shield like it is on Nexus Player?

    At least they shipped with working Netflix, unlike Razor.
  • webdoctors - Friday, May 29, 2015 - link

    Why is a license needed if its just bit-streaming? If i connect it to my amp and my amp separates the hdmi video from the audio signals, why would the licensing matter on this box?

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