O2 will begin taking stock of the HTC One X smartphone on 5 April, with sales set to begin on that date or shortly after.
The 4.7-inch, quad-core, Android 4.0 device was announced at Mobile World Congress last month, but without an official launch date.
However, a tweet from the official O2 Twitter account, in reply to a customer query, seems to suggest that 5 April will be D-Day for the new flagship Ice Cream Sandwich device.