You can buy Unlocked Xiaomi phone right on ebay. I might buy one
The thing with buying these items from vendors you don’t know anything about, especially foreign ones, is the risk that the phone is hacked and trojaned. Since you have to punch in your user id’s & passwords to get onto various websites, I’d be cautious about getting phones and tablets from anyone other than a stateside vendor, and I’m not referring to Ebay (unless it’s Best Buy or Newegg selling on Ebay).
If customs finds them in the mail, they will be seized. They are not cleared for use in the United States by the FCC and they are not licensed for any of the intellectual property they use. Good luck with that. It's a crap shoot. . .
I am impressed with the level of the tech stuff the eBay seller offers other than Xiaomi phones. . .
(Any bets the name brands are or are not knock-offs?)
The importer seems to be really into high-tech, don't they. I am certain they will be a good resource for you when your new Xiaomi phone needs upgrading or service repairs. You can send it back to them and they can give it a facial! ;^)
Other than that, I hear Xiaomi phones are a middle of the road quality Android smartphone, but not much capacity I notice. 1GB of RAM and 8GB of storage. Xiaomi phones aren't getting much traction outside of China because of their serious IP problem—when they started trying selling in India, their product started being seized and they are being sued by multiple owners of the patents they are infringing—and they are officially blocked in many other countries until they get their legal act together.