This document compares the ZigBee and Bluetooth personal area network (PAN) standards. It explains that ZigBee is designed for low data rate, low power wireless sensor and control networks, while Bluetooth focuses on connectivity between devices like laptops and PDAs. The document outlines key differences in data rates, power consumption, packet sizes, response times, topologies, and security measures between the two standards. ZigBee is presented as better suited for applications requiring low power consumption and quick response times from small sensor devices, while Bluetooth is intended for regular data transfer between larger mobile devices.