<Li> 3.50 mm (0.138 in) headphone jack GSM / HSPA / LTE </Li> <Tr> <Th> References </Th> <Td> </Td> </Tr> <P> Samsung Galaxy Alpha is an Android smartphone produced by Samsung Electronics . Unveiled on 13 August 2014, the device was released in September 2014 . A high - end device, the Galaxy Alpha is Samsung's first smartphone to incorporate a metallic frame, although the remainder of its physical appearance still resembles previous models such as the Galaxy S5 . It also incorporates Samsung's new Exynos 5430 system - on - chip, which is the first mobile system - on - chip to use a 20 nanometer manufacturing process . </P> <P> The Galaxy Alpha received mixed reviews; although praised for its higher quality build and design in comparison to earlier products, the device was panned for its modest specifications in comparison to its flagship counterpart, the Galaxy S5, and for being priced too high for what they considered to be a "mid-range" smartphone . </P>

When did the samsung galaxy alpha come out