Xperia™ E3 takes on the OmniBalance design concept which offers balance and symmetry in all angles. The E3 also incorporates a good balance of functionality and user friendly design. Full round side shape enhance the comfortable hand fit contrary to its solid look. The soft material of the four corners are carefully considered so that the color does not change even after long-term use. Aluminum power key express the quality functioning as an accent to whole design. To achieve a thinner impression, side frames are painted matte.