Android TV box is simply a TV box which running the Android operating system. It is same operating system as the one running on your smartphone, tablet and millions of other devices throughout the world.
Why so many different names?
When you look at any TV Box, what do you call it? Hint…it almost depends on where you’re from.
Where I am in North America, Android TV box devices are normally called Streaming devices or Streaming Media players. Sometimes, they’re by mistake called Roku boxes, even though they may be made by Apple, Amazon or numerous other manufacturers. Let me furnish you an example of something similar. Depending on what part of the country you’re in, you call that sugary, Soda, carbonated beverage Pop or even Coke (even when it’s not Coke). So, unless it’s actually a Roku that you’re conversation about, please don’t identify it a Roku box. It can generate confusion for you and the people who you’re talking to.