An action cam is a digital camera used for filming while being immersed in the action. Action cameras are usually compact, rugged and water-resistant, or even completely waterproof. They are usually equipped with a wide-angle lens to capture a maximum of the action in progress. Action cameras are related to outdoor and motor sports and are often attached to helmets, handlebars, etc… They are often used in a waterproof housing that gives the camera greater resistance to shocks and various elements such as water, sand or mud. To simplify their use, action cameras are often linked to applications allowing for example live viewing on a smartphone or tablet, or video editing.