A head-mounted display (100, 700) to be worn by a user, comprising: a housing (102, 702); a display device that is attached to the housing (102, 702) to output content for display; and a support assembly that includes: a headband (106, 706) configured to support the housing (102, 702) relative to the head of the user; and an adjustment mechanism that is operable to change fit of the headband (106, 706) relative to a head of the user in response to a control signal, wherein the adjustment mechanism includes a feedback component, and the control signal is generated based on output from the feedback component, wherein the adjustment mechanism includes: a first hand contact detector that is operable to detect contact with a first hand of a user; and a second hand contact detector that is operable to detect contact with a second hand of the user, wherein the adjustment mechanism loosens the headband (106, 706) relative to the housing (102, 702) in response to detecting user contact with the first hand contact detector and the second hand contact detector, and the adjustment mechanism tightens the headband (106, 706) relative to the housing (102, 702) in response to detecting cessation of user contact with the first hand contact detector or the second hand contact detector on the housing (102, 702). a housing (102, 702); a display device that is attached to the housing (102, 702) to output content for display; and a support assembly that includes: a headband (106, 706) configured to support the housing (102, 702) relative to the head of the user; and an adjustment mechanism that is operable to change fit of the headband (106, 706) relative to a head of the user in response to a control signal, wherein the adjustment mechanism includes a feedback component, and the control signal is generated based on output from the feedback component, wherein the adjustment mechanism includes: a first hand contact detector that is operable to detect contact with a first hand of a user; and a second hand contact detector that is operable to detect contact with a second hand of the user, wherein the adjustment mechanism loosens the headband (106, 706) relative to the housing (102, 702) in response to detecting user contact with the first hand contact detector and the second hand contact detector, and the adjustment mechanism tightens the headband (106, 706) relative to the housing (102, 702) in response to detecting cessation of user contact with the first hand contact detector or the second hand contact detector on the housing (102, 702). a headband (106, 706) configured to support the housing (102, 702) relative to the head of the user; and an adjustment mechanism that is operable to change fit of the headband (106, 706) relative to a head of the user in response to a control signal, wherein the adjustment mechanism includes a feedback component, and the control signal is generated based on output from the feedback component, wherein the adjustment mechanism includes: a first hand contact detector that is operable to detect contact with a first hand of a user; and a second hand contact detector that is operable to detect contact with a second hand of the user, a first hand contact detector that is operable to detect contact with a first hand of a user; and a second hand contact detector that is operable to detect contact with a second hand of the user, wherein the adjustment mechanism loosens the headband (106, 706) relative to the housing (102, 702) in response to detecting user contact with the first hand contact detector and the second hand contact detector, and the adjustment mechanism tightens the headband (106, 706) relative to the housing (102, 702) in response to detecting cessation of user contact with the first hand contact detector or the second hand contact detector on the housing (102, 702).