If you don’t have a spare 500 notes lying around to grab it SIM free, you might fancy picking up the Sony Xperia Z on a T-Mobile contract from IntoMobilephones instead. £26 per month over 24 months is £624 total.
The monthly T-Mobile allowance includes 500 minutes, unlimited texts and 9,999GB of data. The first three months of insurance are free, and £5.99PM thereafter (cancellable at any time).
(Thanks to ather7851 at HUKD)