Prehensile movements when handling a smartphone

This dataset contains raw prehensile movement data collected from seven (7) volunteers aged from 19 to 56 years interacting with a smartphone (Sony Xperia P). The dataset was collected passively without imposing any predefined tasks to the user to represent at the best the user natural behavior. The motion data was collected from signals extracted from the multiple 3-dimensional inertial sensors of the smartphone: the gyroscope that measures the rotation rate along the device three axes in radians per second (rad/s), the accelerometer that measures the proper acceleration in meter per second square (m/s²), and the gravity that measures the gravitational component. This dataset has been used to evaluate a non-obtrusive continuous biometric authentication system in smartphones.