Abstract: A modular portable device (4) for viewing, signaling and/or lighting includes a casing (8) suitable for realizing both a container body and a grip or attachment element of the modular portable device (4). At least one viewing device (12) is suitable to reflect an image of the surrounding environment to the modular portable device (4). At least one signaling device (20) emits a beam of light to signal the presence of the modular portable device and/or the user or vehicle supporting the modular portable device (4). The viewing and signaling devices (12, 20) are mechanically separable from one another and mechanically associable and removable to/from the casing (8) independently of each other.