We explain everything you need to know about Bluetooth, the long-standing wireless connectivity standard.
Bluetooth is a ubiquitous wireless standard using 2.4-GHz radio waves, employing adaptive frequency-hopping to avoid interference. While less powerful and slower than Wi-Fi, it's backward compatible and used in proprietary features like AirDrop and Quick Share for device discovery. Named after King Harald "Bluetooth" Gormsson, it was first released in 1999, with subsequent versions improving speed, efficiency, and security. The Bluetooth Special Interest Group (SIG) manages the standard.