There are many reasons why iPhone 4 are still one of the best-selling devices today and it includes the features it offers. You can have an easy connection with you officemates, friends and relatives as there is a video conferencing feature that will allow you to have a face-to-face communication with people regardless of how far they may be. You will also be able to use and organize multiple applications and folders as the devices has a highly advanced operating system. You can even play your favourite games while listening to music. The exceptional video and camera capabilities enables you take high quality pictures or videos and even enhance them by editing. The device is also unquestionably durable, has better built-in protection against scratches and provides excellent audio output quality. If you are wondering if you will have problems about running out of battery then the answer is no as the device is designed to have an increased battery life. Unlock iPhone 4 Software