Ordered mine on launch day from Ebuyer (after Amazon turned out to be useless), very impressed with both the phone and the service from Ebuyer. Also, Ebuyer had stock all day last time, so shouldn't need to worry about trying to be one of the first 100 like at the Xiaomi store.
So 2 months and a week for us then... (lol)
Result and well happy, hard work tho asked for a giftcard.......no.......asked for a goodwill gesture ......no..... asked for a moth of prime which had just run out (and was going to sort later) and they gave me 12 months (party) so got the phone coming tomorrow for £499 minus £79 = £420 ............result ...gotta be the cheapest uk spec Mi Mix 3 in the Uk
And their in screen finger print sensor, especially with what is rumoured with what Xiaomi is going to do with theirs.
If you don't need a phone right now, I'd say wait for the 7, pictures I've seen with no notch, make me want to find out their take on the selfie cam