GPRS service was created as an addition to the GSM network to be able to send and receive data packets. 3G is a faster and a better version of GPRS.

The Nook is an E-Reader from Barnes & Noble. It is based on the Android platform. Mainly there are only three differences between the Nook Wi-Fi and Wi-Fi/3G: connectivity, aesthetic, and weight.

The iPod Touch was designed to be a portable media player first, in addition to a personal digital assistant, handheld game console, and Wi-Fi mobile device. iPod Touch is essentially a step ahead of the iPod...

Tablets are a cross between smartphones and laptops, have a bigger screen than smartphones and provide a better multimedia experience. Smartphones are mobiles that have capabilities like mini handheld...

The iPad has a 9.7 inch display, while the iPhone has a 3.5 inch display and can make phone calls.