Mobile Phones Android 39 39 people found this article helpful What Is 3G Service? Definition of 3G Service by Liane Cassavoy Writer Liane Cassavoy is a former freelance contributor to Lifewire who has been reviewing and writing articles about smartphones since 1999. our editorial process Twitter LinkedIn Liane Cassavoy Updated on July 12, 2019 Maurizio Chiocchetti / Getty Images Android Switching from iOS Tweet Share Email 3G service, also known as third-generation service, is high-speed access to data and voice services, made possible by the use of a 3G network. A 3G network is a high-speed mobile broadband network, offering data speeds of at least 144 kilobits per second (Kbps). Comparison For comparison, a dial-up Internet connection on a computer typically offers speeds of about 56 Kbps. If you've ever sat and waited for a Web page to download over a dial-up connection, you know how slow that is. 3G networks can offer speeds of 3.1 megabits per second (Mbps) or more; that's on par with speeds offered by cable modems. In day-to-day use, the actual speed of the 3G network will vary, with factors such as signal strength, location, and network traffic all come into play. 4G and 5G are newer, faster, and more reliable mobile network standards.