The document describes an IoT-based emergency rescue life hacking band. The band monitors the wearer's vital signs and can detect emergencies. If an emergency is detected, the band sends a signal to a corresponding Android application. The application then transmits the signal to nearby hospitals and relatives. The band uses sensors to monitor heart rate and includes a Bluetooth module, control system, and buttons. An Android app is used along with cloud storage and an alert system to notify hospitals and relatives in an emergency situation.