HTC One is not coming to UK until March 29th. HTC itself has confirmed the postponed date of HTC One release.
An official statement was reported by Android Central “We will start fulfilling pre-orders by end March in certain markets and will roll out to more markets as we approach April.”
It is being said that the reasons for the delay is shortage in mobile parts such as camera module and voice call monitor. Rumors suggest that HTC would only be able to ship 800,000 and 1,200,000 units in the upcoming months and if this is true then there is going to be extreme shortage of HTC One which may give upper hand to Samsung Galaxy S4 and Sony Xperia Z.