Who makes the 9.1 android phone?

[Android Central Question]

I purchased a X23 6.2 in
screen Android mobile phone with 6gb and had an octa core. I want to know who manufactures this phone? How will does this phone work? Are the any issues that I need to know about the phone?

 

[belodion]

The Vivo X23? What do you think of it? You're better qualified to say than most of us, given that you own one.