This database has been developed with reference to the problem of gesture recognition. It contains inertial data related to five gestures: 1) Up: sharp movement upwards, 2) Down: sharp movement downwards, 3) Circle: movement in a circular shape, 4) Left: sharp movement to the left, 5) Right: sharp movement to the right. Data have been recorded with a smartwatch, namely Samsung Gear S, worn on right wrist.