Summary The pure organic mechanoluminescent luminogens (tPE-2-Th and tPE-3-Th), with their combination of aggregation-induced emission and the presence of a self-assembly unit, exhibit very bright mechanoluminescence (ML) emission even in daylight. Excitingly, the relationship between the pressure and ML intensity has been successfully established for the first time based on an ML device fabricated by tPE-2-Th. Furthermore, the flexible and wearable ML device demonstrates potential applications in communications, information storage, and health care. In particular, it provides a quick response to the human heartbeat, offering a new approach for the monitoring of force stimuli in daily life. Video Abstract Download : Download video (23MB)