<Tr> <Th> SAR </Th> <Td> 0.33 W / kg </Td> </Tr> <Tr> <Th> Website </Th> <Td> S6: www.samsung.com/global/galaxy/galaxys6/galaxy-s6/ S6 Edge: www.samsung.com/global/galaxy/galaxys6/galaxy-s6-edge/ S6 Edge+: www.samsung.com/global/galaxy/galaxy-s6-edge-plus/ </Td> </Tr> <P> Samsung Galaxy S6, Samsung Galaxy S6 Edge, and Samsung Galaxy S6 Edge+ are Android smartphones manufactured and marketed by Samsung Electronics . The S6 line serves as a successor to the Galaxy S5 . The S6 and S6 Edge smartphones were officially unveiled in the first "Samsung Unpacked 2015" event at Mobile World Congress on 1 March 2015, while the bigger S6 Edge+ was officially unveiled together with the Samsung Galaxy Note 5 in the second "Samsung Unpacked 2015" event at New York on 13 August 2015 . Alongside the S6, Samsung also unveiled the S6 Edge (and later on the bigger S6 Edge+), a variant whose screen is wrapped along the sides of the device; the curvature is usable for several additional features . The Galaxy S6 and S6 Edge were released on 10 April 2015 in 20 countries while the S6 Edge+ was released on 21 August 2015 in 20 countries . </P> <P> Although the overall design of the Galaxy S6 still features some similarities to prior models, the construction of the device itself was revamped, with a metal unibody frame and glass backing instead of plastic . The devices also introduced an improved camera, a streamlined user interface, support for both major wireless charging standards, and support for a mobile payments platform that allows the device to emulate the magnetic strip from a credit card . The S6 features other hardware improvements as well, including a 1440p display, a new in - house system - on - chip that utilizes a 14 nm FinFET manufacturing process, and an improved fingerprint scanner . </P>

When did the samsung galaxy s6 come out