<Tr> <Th> Dimensions </Th> <Td> 142 mm (5.59 in) H 72.5 mm (2.85 in) W 8.1 mm (0.31 in) D </Td> </Tr> <Tr> <Th> Weight </Th> <Td> 145 g (5.11 oz) </Td> </Tr> <Tr> <Th> Operating system </Th> <Td> <P> SM - G900x Original: Android 4.4 "KitKat" SM - G903F Original: Android 5.1. 1 "Lollipop" </P> Current: Android 6.0. 1 "Marshmallow" </Td> </Tr> <P> SM - G900x Original: Android 4.4 "KitKat" SM - G903F Original: Android 5.1. 1 "Lollipop" </P>

What operating system does samsung galaxy s5 use
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