is this phone unlocked
Yes, it is unlocked.
What networks does this work on? Sprint?
Unfortunately this model is not found on the site we link in the description, but here is a listing of the cellular bands supported by this phone:
Unfortunately I do not believe it supports Sprint in the US. See here for more info.
Will this phone work on Mint Mobile? Specifically their 4G LTE?
Is this phone the U.S. version that supports wireless charging?
I’d also like to know if this is the U.S. version with wireless charging. Thanks!