Wearable technology components refer to the essential hardware and software elements that enable the functionality of wearable devices such as smartwatches, fitness trackers, smart glasses, and medical wearables. Key components include sensors (like accelerometers, gyroscopes, heart rate monitors, and SpO₂ sensors) that track physical activity and health metrics; microcontrollers and processors that manage data processing and device operations; batteries and power management systems for energy efficiency; wireless communication modules (such as Bluetooth, Wi-Fi, or NFC) for data transmission; and displays (OLED, LCD, or e-ink) for user interaction.