After a thorough cleaning of the smartphone surface with an antistatic cleaning solution and a glasses cleaning cloth, the film was relatively effortless and applying smoothly by I the surface of the film with the edge of a bank card (with the lens cloth covered) have laid down.
At the top and bottom of the smartphone each remains an approximately 1 mm wide margin, which is not covered by the film. This margin is too small to affect the optics sustainable or suspend the screen the risk of scratching, it does not bother me so unlike other reviews here.