Facts about Bluetooth
- 09
Over 3 billion Bluetooth devices ship annually worldwide, making it the most widely deployed wireless technology across consumer electronics, automotive systems, and industrial equipment.
- 08
Bluetooth Low Energy, introduced in version 4.0 during 2010, consumes up to 15 times less power than classic Bluetooth while maintaining similar range capabilities.
- 07
Piconets, the basic Bluetooth network units, allow one primary device to connect with up to seven secondary devices simultaneously within a 10-meter range.
- 06
A single Bluetooth chip requires only 10 microamps of current during idle mode, allowing a small coin-cell battery to power a device for several years without replacement.
- 05
Bluetooth devices consume approximately 250 times less power than WiFi, making them ideal for battery-operated wearables and IoT sensors requiring multi-year lifespans.
- 04
Adaptive frequency hopping in Bluetooth switches between 79 different channels up to 1,600 times per second to avoid interference with WiFi and other 2.4 GHz devices.
- 03
The 2.4 GHz frequency band used by Bluetooth is unlicensed, allowing billions of devices to operate simultaneously without requiring FCC approval or frequency allocation fees.
- 02
Version 5.0, released in 2016, increased Bluetooth's maximum range to 240 meters and data transfer speed to 2 megabits per second, making it viable for large-scale IoT networks.
- 01
Named after Harald Bluetooth, a 10th-century Danish king, the wireless standard operates on the 2.4 GHz frequency band shared with WiFi and microwaves.