3-3. Poor posture angleAt the poor posture angle in the setting dialog, the users can set the angle to receive the vibration to helpthem voluntarily change their posture habit to good one. ALEX provides vibration if posture goes beyonda specific angle at a certain time.4. ChallengeSet your weekly goal for ALEX Score that is calculated considering the setting angle, real-time postureand wearing time of ALEX through the Challenge in the menu.* The goal points are marked in green dotted line in the posture data at the upper home screen.Touch this area to set your goal.Red triangle: Currently set poor postureWhite circle: Poor posture to be newly set