The phone comes with a 6.50-inch touchscreen display with a resolution of 720x1600 pixels and an aspect ratio of 20:9. Samsung Galaxy A03s is powered by an octa-core MediaTek Helio P35 (MT6765) processor. It comes with 3GB of RAM. The Samsung Galaxy A03s runs Android 11 and is powered by a 5000mAh battery. The Samsung Galaxy A03s supports proprietary fast charging.As far as the cameras are concerned, the Samsung Galaxy A03s on the rear packs a 13-megapixel primary camera with an f/2.2 aperture; a 2-megapixel camera with an f/2.4 aperture, and a 2-megapixel camera with an f/2.4 aperture. The rear camera setup has autofocus. It sports a 5-megapixel camera on the front for selfies with an f/2.2 aperture.