"Smile ID" leverages a simple, everyday action—unlocking your phone—to detect the early signs of a stroke. This innovative technology uses Face ID's 3D scanning to analyze facial symmetry as the user smiles. If facial asymmetry is detected, the system alerts the user and their emergency contacts to ensure swift action within the golden time. This seamless integration of advanced technology into daily routines offers an accessible and efficient way to monitor health and improve stroke survival rates. By combining technology and awareness, "Smile ID" brings life-saving benefits to individuals in a way that feels natural and unobtrusive. "Smile ID" is a technology that uses Face ID during smartphone unlocking to detect facial asymmetry, identifying early signs of stroke. If asymmetry is detected, an alert is sent immediately, ensuring a quick response within the golden time. It's an innovative approach to saving lives naturally in daily life.