What is the difference between NB-IOT module and 4G module?

NB-IOT

NB-IOT uses DSSS modulation, not LTE radio. The NB-IOT network constructed from cellular networks has a bandwidth consumption of only about 180kHz and can be directly deployed on a series of networks such as GSM networks and LTE networks, which not only reduces costs but also facilitates upgrades. The use of license bands supports in-band and protection Deployment methods such as band and independent carrier can coexist with the existing network.

Many on-site infrastructures now have gateways that collect sensor data, and then communicate with the cloud through the gateway to remotely transmit the on-site data to the cloud for parsing, storage and analysis of the data. 4G module

A communication module based on 4G communication technology has the characteristics of high data rate, broadband transmission, wireless instant messaging, and high compatibility. Its core change is the change in information transmission rate. It has wireless remote data transmission function and a richer variety of information transmission, including pictures, audio, video, etc., making it widely used in the Internet of Things application market.