A portable electronic device having a detection device is used to alert a user when the portable electronic device in undergoing a strain or deformation which could damage the portable electronic device. The alert includes an audible sound and/or a vibration event which signal to the user to remove the strain or deformation from the portable electronic device. The detection device may include a strain gauge attached to an enclosure of the portable electronic device. The strain gauge may output a change in electrical resistance in response to strain or deformation on the enclosure.