I've never bought a phone there, but visit frequently. The names of phones that come up most often are Xiaomi and Huawei.
In particular Xiaomi has excellent feedback from my friends who live there as being great quality at an excellent price. I was planning to get a Xiaomi next time I upgrade.
Like £100 for a similar specification to phones that typically cost £300-£400 over here.
Mikey is right, though. There may well be no come-back if you have a problem. I don't know what your rights would be, but probably in practice you'll have none, no matter what the law might say.
Nevertheless, if the customer feedback is both good and numerous, , I'd probably be prepared to risk it. The charger might be an issue, but I'm sure you can deal with that.
let us know how you get on!