In recent years more and more aspects of our lives have started relying on data-driven technologies. Decision-making processes based on the extensive analysis of data are improving how we address as a society challenges in safety, health, sustainability and many other fields, with structural health monitoring, personalized medicine, and environmental assessment being a few notable examples. The development of sensing technologies has played a key role in the collection of these data, driven by continuous advancements in fabrication processes, materials, and sensor design. Nowadays accelerometers are mainly based on MEMS and piezoelectric technologies, relying on electronic readout and signal processing. Thanks to the increasing performance and decreasing cost of electronic components, accelerometers are being integrated into many different devices and systems, from smartphones to industrial machinery.