Blue colour was preferred over black as in black the fingerprints marks are more prominent. So we kept a darker shade of blue with NCVM shine effect which reduces the visuals of fingerprints mark on the battery cover.

With smartphone thickness at 9+ mm challenge was to make it look visually slim. So we kept middle house silver with brushed effect in contrast with front & battery cover so as to make the phone look slim.

With 72.6 mm width it makes it difficult to hold the phone. So we kept the battery cover edges to be smooth to a certain degree so as to make it ergonomically comfortable in hand.