What is Android TV box?
- Box running on Android OS, come with remote and TV input (eg HDMI).
- Function to display android app on TV


How is Android TV box compared to smart TV?
Smart TV also run on Android/Linux, it is usually embedded in TV.  The problem with integration is you unable to upgrade this little hardware. I noticed my smart TV only come with single core CPU and nowadays a quad core TV box can cost less than $80.
My advise : Dun buy smart TV. Just a small TV box is good enough to make your normal TV smart.



Can Android TV box run Google Store
- Yes, but take note that Google store kept collection of Mobile phone app. Mostly not designed for TV box and will not respond to TV box remote. Nevertheless, you can still install Android app in mobile version. Just can use mouse or flymouse to navigate.