For average consumers, '3G' and '4G' are two of the most mysterious terms in the mobile technology dictionary, but they're used relentlessly to sell phones and tablets. If you're shopping for a new phone, the answer isn't clear-cut, and you shouldn't always go for the higher prices mobile phones. Gadgetwala has all the answers which will clear all your confusions about how you can select a 4G device. Keep watching for more details.