Mobiles have become greatly volatile and nowadays even the village guy has a mobile phone in his hands. Mobile technology is increasing rapidly and in an instantaneous manner. That too the recent mobile phones almost have a variety of facilities in it such as camera, Bluetooth, infrared, games, browsing, music, radio, video recording, dictionary, etc. In fact most of the mobile phones have these facilities. Only difference is that how far these tools are good from one phone to another. Nowadays 3 G mobile phones like APPLE IPHONE, I mate, blackberry etc are used with great success. But the current technology is now working on the development of 3 G technology and which results in the 4 G mobile phones which has more advancement. For instance the HTC MAX 4G mobile phone is using windows 6.1 OS and with the wi fi connection. Thus one can see the mobile establishment all over world and this mobile is one of the greatest inventions of man.