What is 4g categories for 4G sim router?

The 4G we usually say is mostly high-speed 4G, which is divided into category Cat. 1, 3, 4, 6, 12, 18, 20 based on the grade. Usually, to serve a person's own needs, 4G refers to the fourth generation of mobile technology (abbreviated as "4G"). "4G" includes TD-LTE and FDD-LTE. This is a better improvement on 3G technology. Compared with 3G communication technology, it has greater advantages. It is the perfect combination of WLAN technology and 3G communication technology, which can make the image transmission faster. Make the transmitted image quality and image look sharper. The application of 4G communication technology in smart communication devices enables users to have faster Internet speeds of up to 100Mbps.

Cat.1 is low-speed 4G, which provides connection services for things in the Internet of Things. The full name of CAT.1 is LTEUE-Category1, where UE refers to user devices, which is a classification of wireless performance of user terminal devices in LTE networks. As defined by 3GPP, the UE category is divided into 15 levels ranging from 1 to 15. The ultimate goal of CAT.1 is to serve the Internet of Things and achieve low power consumption and low-cost LTE connectivity, which is of great significance for the development of the Internet of Things.

E-lins' 4G sim routers support a variety of categories. CAT4 networks are commonly used, which can support up to 150mbps downstream and up to 50mbps upstream. However, due to the environment of the site, and the signal strength, the actual speed is usually not achieved.