A:AnswerWe appreciate your interest. There are no apps built into the display. VIZIO SmartCast™ products are controlled using an application instead of a traditional remote. With SmartCast™ built into the display you now have access to hundreds of castable apps. Thanks! -Randal
A:AnswerI am using the Logitech Harmony remote for all my audio/video devices. With Smartcast you can use any Android tablet or smartphone to control it.
A:AnswerLong story short, you can't. It has nothing to do with vizio but instead Google/Amazon and the integrated Chromecast. Amazon decided a while back that they do not want to support streaming on any of the Chromecast devices. The easy work around for this is an Amazon fire stick or roku stick. (I recommend this route, and the streaming sticks are extremely affordable)
Or alternatively you can use the Google Chrome browser on your computer to cast the content of your web browser to the TV. So simply watch Amazon video content while casting the screen and it will show on your TV.
A:AnswerShort answer: Technically, I would say yes, because it's very tech diverse in what it can do and has ChromeCast built in.
Long answer: By Smart TV I'm thinking you assume, like I do, that means you can turn it on, it's connected to your wifi, and has built in apps to immediately be able to use (like Netflix, HBO or Spotify). This TV has ChromeCast built into it. I would say ChromeCast is more like a less sophisticated, or less complete, of an operating system than, for example, a Roku, a game console, or your phone. ChromeCast is primarily and best used as an option you can click on in an app to literally CAST your screen from your tablet, phone or computer onto a TV screen - and the apps that can do that come with that option already built into them (Netflix, Spotify, Youtube, Vudu, Hulu, Crackle, etc.). It's the option usually on the bottom of the screen inside an app with the icon that's a rounded rectangle with the wifi symbol on the right side. SO, since this TV has ChromeCast built into it, you can cast any of those things easily and quickly to the TV, OR one of the TV's input options should have access to the ChromeCast-friendly apps (if you've connected your TV to your wifi). So, technically, yes I'd say it's a Smart TV. This thing is incredible for being able to switch between different casts and inputs, and is very capable in connecting with as a whole and switching between other tech devices like a sound system, PlayStation 4, Blu-ray player or a movie on Netflix on your phone or Youtube video on your tablet; and it really is capable of a lot more, and is very "intelligent" already. But, its smart-tv app-options are limited to ChromeCast's limitations or the limitations of the device you have hooked up to it. I hope this helps and clarifies the full extent to which this is a smart tv!
A:AnswerApple TV does not support 4K or HDR according to the most recent articles I read (June 2017). There are rumors that they will in the future though and it's possible it may already have an update. The Amazon Fire stick does support 4k and HDR (assuming it's the newest version), but there's honestly not a ton of content that supports either right now. This is still considered the early adoption phase for these technologies, so expect more and more content to release but it may not be as quickly as you would hope. The sound isn't very good on any TV and this TV is no exception. If you don't have at least a soundbar, "sound quality goodness" from this TV isn't going to happen. However, it does let you output Dolby Digital to your preferred audio receiver using a digital optical cable. I currently have my stuff set up this way and I'm very happy with it. I'm also running 7.1 surround sound with a Denon receiver and mostly use my gaming consoles for content streaming though.
A:Answer4K content will work on any of the HDMI ports. HDR content is only available on HDMI 1. Any content that is broadcast or streamed in 4K will show as 4K but if the content is only be broadcast or streamed in 720p the display can only show it how it is received. It will automatically upscale this content to 4K but may not look like it is.