OTA update IoT is essential for maintaining and enhancing smart security in medical IoT devices such as wearable health monitors, patient monitoring devices, telemedicine devices, and other medical equipment. Through OTA update IoT, these devices receive remote updates that improve security, functionality, and performance without the need for manual intervention. This ensures that sensitive health data is protected from vulnerabilities and that devices remain accurate and efficient. By using OTA update IoT, healthcare systems can ensure continuous, secure, and optimized performance of critical medical devices, enabling better patient care and outcomes.