Wi-Fi is technology that allows a device to exchange data wireless using radio waves over a computer network. Most Wi-Fi connections require a SSID and an a password for the device to access the WI-FI.
3G - provides broadband without a telephone line. 3G is give by the mobile phone networks like Vodafone and O2. It uses the same signals as mobile phones. You need a ‘dongle’, or a data card in order to use 3G. The quality and availability of a mobile connection depends on a mobile signal, but mobile broadband is growing.
Availability
3G relies on area-specific connectivity. 3G is available in most areas
Connection type
Data is sent through radio waves which are picked up by 3G enable devices
Bandwidth
3G - provides broadband without a telephone line. 3G is give by the mobile phone networks like Vodafone and O2. It uses the same signals as mobile phones. You need a ‘dongle’, or a data card in order to use 3G. The quality and availability of a mobile connection depends on a mobile signal, but mobile broadband is growing.
Availability
3G relies on area-specific connectivity. 3G is available in most areas
Connection type
Data is sent through radio waves which are picked up by 3G enable devices
Bandwidth