Whenever we have to explain the difference between Bluetooth and WiFi, we usually just say something like, “Bluetooth is like wireless USB, WiFi is like wireless Ethernet.” At which point they usually ...

Bluetooth and ZigBee have much in common. Both are types of IEEE 802.15 “wireless personal-area networks,” or WPANs. Both run in the 2.4-GHz unlicensed frequency band, and both use small form factors ...