Bluetooth,wifi,mobile tracking

Infrared radiation is popularly known as "heat" or sometimes "heat radiation". But in the communications industry, infrared refers to a short distance data transfer technology. Infrared can achieve a max speed of 4 Mb/s, but it can not pass through walls and other obstacles, and has to be in line of sight.

 

Below is a comparison between Bluetooth and Infrared.

 

Still Bluetooth remains to be one of the most popular technologies and will be for many years to come.

Related:

What is Bluetooth

WiFi versus Bluetooth