When it comes to the question of which is more accurate mirror or camera? – the answer isn't as obvious as you might think. The variations in the lens design, focal length, image processing and shooting distance can affect the way that the face features look, according to Visuals Clipping. Front cameras are typically engineered to capture close-ups of yourself, and rear cameras might come with a variety of lenses and better image quality. Either camera, from a proper distance with proper lighting can give a natural appearance of you.