Analysts forecast 20 billion Internet of Things (IoT) devices going online by 2020. Industry interest in the technology that connects all these devices is enormous. And everyone agrees that current wireless solutions do not fully meet this need. Consider cellular low-power wide area technologies (LPWA). LPWAs are specifically designed for low-bandwidth, low-power IoT applications and are expected to see tremendous growth in the coming years. But one question is big: Which LPWA technology will prevail?