The design of the Asha 503 appears to be inspired from the Lumia lineup of smartphones. It comes with an additional layer over is exterior, which is being called Ice Layer by the company. It is a transparent layer that absorbs light and makes the underlying colour really pop. Not only it makes the device look attractive, it also saves the device from scratches. The power and volume keys are situated on the right hand side of the device, while the back contain s Nokia s logo, camera lens, and a single-LED flash. There is only one control key on the front, the capacitive back key. The Asha 503 is 102.6 mm long, 60.6 mm wide, 12.7 mm thick, and weighs 111.4 grams. It has been released in six colour variants; black, blue, green, red, white, and yellow.