Surface changing aerosol-generating system

An aerosol-generating device comprising:

• a housing defining a receptacle configured to receive an aerosol-generating article;
• control electronics disposed in the housing;
• and
• a sensor operably coupled to the control electronics and configured to detect a state of the device or the article when the article is received in the receptacle,
• wherein the system further comprises a shape-changing element disposed on or in the housing, wherein the control electronics are operably couplable to the shape-changing element and are configured to cause the shape-changing element to change shape in response to the state of the device or the article detected by the sensor,
• wherein the change in shape of the shape-changing element causes an exterior surface of the device to change shape sufficient to provide tactile feedback to a user.

An aerosol-generating article for use with an aerosol-generating device, the article comprising:

• a housing;
• an aerosol-forming substrate disposed in the housing;
• and
• a shape-changing element disposed on or in the housing, wherein the shape-changing element is operably couplable to control electronics of an aerosol-generating device to cause the shape-changing element to change shape,
• wherein the change in shape of the shape-changing element causes an exterior surface of the article to change shape sufficient to provide tactile feedback to a user.