The NativeScript WearOS Sensors is a plugin developed with the NativeScript framework. It allows to develop smartphone applications for collecting data from the IMU sensors (i.e., accelerometer and gyroscope), the magnetometer, the heart rate and the GPS of a paired Android WearOS smartwatch (if the corresponding sensor is available in the device). The Android WearOS smartwatch must run a counterpart application built using the native WearOS Sensors library. Then, the smartphone application can request the smartwatch to start/stop the collection of the specified sensor, and the smartwatch will send the collected samples to the smartphone application. The data collection can be started both from the smartphone and from the paired smartwatch. In addition. the plugin offers a way to communicate with the smartwatch by sending messages.