https://www.android.com/tv/

If you're considering spending $150, go the distance and get a shield.

you also need to understand the difference between android tv and android on a chinese box, they are quite different systems.

https://androidtv.news/2016/07/android-tv-versus-android-smart-tv-boxes/

I have a shield myself, on my second one, the best by a mile.

No idea what an mx7 or m10 are, they are definitely not android TV, in which case you are on the wrong sub.