Sub-1 GHz products refer to wireless communication devices operating below 1 GHz, commonly used in industrial, automotive, and IoT applications. These products are offered by various global companies, such as Texas Instruments (USA), Semtech (USA), and STMicroelectronics (Switzerland). They specialize in low-power, long-range wireless solutions, including transceivers, modules, and system-on-chip (SoC) designs. Sub-1 GHz technology is widely adopted in smart metering, home automation, and industrial monitoring due to its reliability and penetration capabilities. Leading brands in this category focus on energy efficiency, robust connectivity, and compliance with regional RF regulations.