Current 2G and 3G networks are both used for cellular communications. While 2G networks focus primarily on voice communications, text messaging and simple web browsing, 3G devices offer near-broadband speeds for web browsing and multimedia integration.
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The significant difference between 2G and 3G networks is the faster data speeds offered by 3G. For voice use and text messaging, the differences between a 2G and 3G phone are minimal.
Although 2G phones are less expensive, they cannot offer fast web browsing and file transfers in the way a 3G phone can. The 3G standard allows data, pictures and videos to be uploaded and downloaded quickly.
Not all areas have 3G networks available. In the event that a 3G network is not available, 3G phones will connect to whatever network is available, even if it is a slower 2G network.
A 3G phone can be identified by looking at its screen. Next to the signal strength, look for a 3G or EV logo. Either one indicates you are on a 3G network.
Both 2G and 3G networks allow for easy use of mobile data services. While 3G speeds are faster, both options provide mobile Internet connections wherever there is a cellular signal.