Global Positioning System (GPS) receivers can be commonly found onboard Internet of Things devices, including wearables such as smartwatches and smart wristbands, thanks to miniaturization and power consumption reduction currently achieved by industrial processes. In recent applications, GPS-enabled smartwatches have been used also to monitor outdoor mobility of impaired or ageing users in free-living conditions. This work compares the GPS measurements performed by three commercial smartwatches in several outdoor positions. The results show that the devices present different measurement precision, depending on the chosen propagation scenario.
Global Positioning System measurements: Comparison of IoT wearable devices / Iadarola, G.; Disha, D.; De Santis, A.; Spinsante, S.; Gambi, E.. - (2022), pp. 213-218. (Intervento presentato al convegno 2022 IEEE 9th International Workshop on Metrology for AeroSpace, MetroAeroSpace 2022 tenutosi a Pisa - ITALY nel 27 June 2022 through 29 June 2022) [10.1109/MetroAeroSpace54187.2022.9855994].