Explore the fundamentals of cellular connectivity for IoT devices in this comprehensive conference talk. Delve into the new low power wide area networks (LPWAN) offered by mobile operators, focusing on NB-IoT and LTE-M protocols. Learn about the opportunities these networks present for IoT devices with direct Internet connections outside WiFi or Bluetooth range. Discover practical considerations for both device firmware and backend development. Examine the anatomy of IoT modules, including circuit boards, battery storage, and RF components. Investigate hardware examples, development kits, and data processing options. Gain insights into the partner ecosystem, intermittent connections, and IP protocols in the context of IoT networks. By the end of this talk, acquire a solid understanding of cellular connectivity solutions for IoT applications and their implementation in real-world scenarios.