Word has apparently leaked that the Galaxy S4 will launch sometime in the first two weeks of May, and will cost a whopping €699 ($914, £604). Meanwhile the rest of the EU will be facing a retail price of €599 ($783, £518).
The price discrepancy between what is expected in Italy versus other countries is apparently based on what has happened with previous Samsung releases, like the Galaxy Note II and the S III. The UK may see the S4 launch on April 26, but regardless of its release date there, it will surely be a successful launch as pre-registrations are up sharply compared to Galaxy S III.
The difference in release time frames is apparently due to the preparation of marketing materials. Aside from that, expect the Exynos equipped Galaxy S 4 to be available in about 6 to 7 weeks, just be sure to bring lots of money.
source: Android Caotic