The HTC U11 is now also available from Sprint in the US. A quick look at the device's listing on the carrier's website reveals a $696 price tag. Alternatively, you can also pay zero down followed by 24 monthly payments of $29 each. Color options include black and blue.
The handset (unlocked model) is already available from Amazon, which has it listed for $649. Color options are silver, black, and blue. HTC's own online store has the phone listed for $649, but orders placed there will start shipping in 2-4 weeks.
Their MIUI skin suck, at lease Sense is tolerable and HTC flagships usually get more consistent updates.