Fibocom SC636 is an LTE Category 4 smart communication module that supports LTE networks with WCDMA and GSM fallback. It is powered by the Unisoc UIS7861 platform and features an open Android operating system. The module includes variants SC636-EAU, SC636-CN, SC636-LA, and SC636-W (Wi-Fi and Bluetooth only), covering the network frequency bands of major operators worldwide. This module supports a variety of long-distance communication modes, as well as Wi-Fi/Bluetooth short-distance wireless transmission technology. It also includes a multi-constellation GNSS receiver (GPS / BeiDou), which provides high-performance positioning and navigation while simplifying product design. The SC636 features a rich set of interfaces, including MIPI, USB, UART, SPI, and I2C. It supports external touchscreens and dual front and rear cameras, enabling flexible and easy integration to meet various IoT application requirements. The Fibocom smart module SC636 can be used in a wide range of scenarios, including smart wireless payment, smart robots, smart home, smart cities, and smart education, making it an ideal solution for the core system of smart wireless products worldwide.