The difference between third and fourth generation mobile Internet on Android tablets is the speed they are designed to reach. Devices with 4G mobile data are newer and typically faster than 3G devices, but 4G can be slower depending on the carrier and technology used. For 4G LTE devices, one big difference is that they usually have much faster upload speeds. As a result, 4G LTE is better for users wanting to upload large files such as pictures and videos.
Third generation mobile networks were established in the United States in 2003. The minimum speeds available at that time were around 144 Kilobytes per second, but these speeds have greatly improved since. While 3G networks can be as fast as 4G networks in some cases, 4G networks continue to improve, giving 4G devices more potential overall, as of 2015.
People living in areas lacking 4G service or using their tablets for low data purposes may be content with a 3G device; however, since 3G and 4G data costs money, users who have home Internet and Wi-Fi networks may choose to turn off or use tablets without mobile data. While one gigabyte of mobile data allows users to download about 10,000 Web pages, it only lasts for a short time watching video.