If last year's Galaxy S5 launch is anything to go by,
the S6 will go on sale a month or two later. The Galaxy S5 launched in February before arriving on shelves on 11 April. However, a report at PhoneArena claims that the Galaxy S6 will see a much prompter release than its predecessor, having heard from a Samsung employee that it likely will go on sale on 22 March. There's no word yet regarding how much the Galaxy S6 will cost at launch. However, I would assume that it will be priced similarly to last year's model, which Samsung offered from £579 SIM-free.
The display is expected to have a higher resolution than the Galaxy S5, which featured a 1,920x1,080 Full HD display. It's likely that Samsung will look to challenge the likes of the Nexus 6 and LG G3 with a QHD 2,560x1,440 screen resolution. Much like the Galaxy S5, this display will be paired with a fingerprint scanner. However, rather than the swipe-based offering on the Galaxy S5, Sammobile claims that Samsung will opt for a touch-based sensor, similar to that found on the iPhone 6. With a February launch on the cards, it's also likely that the Samsung Galaxy S6 will arrive running Google's Android 5.0 operating system.