Since the advent of 4G , operators have changed their profile to indicate that 4G network is being used. The 3G cellular network offers a high speed internet connection, albeit slightly slower than 4G. In return for providing this additional connectivity, smartphones consume a lot of energy. In some situations you might want or need to disable your 4G and 3G connections on your iPhone to prolong battery life. We'll take you through the simple steps in this article.