“…Consequently, most works described in this section are not necessarily portable at the moment of publication, but have clear opportunities to lately become HMP-WDs. Starting from prototypes that cover a small skin surface, there are bracelets ( Figure 4 a), designed to be worn on the wrist (see, e.g., in [ 19 , 21 , 59 , 60 ]); gloves and mobile device mockups ( Figure 4 b), designed to be worn or held on the hands (see, e.g., in [ 37 , 61 , 62 , 63 , 64 ]); belts ( Figure 4 c), designed to be worn surrounding the body from the chest to the abdomen (see, e.g., in [ 8 , 35 , 41 , 42 ]); and jackets ( Figure 4 d), designed to be worn on the upper body with actuators usually located on the back, the front and the superior limbs (e.g., [ 38 , 65 ]). Other variations are whole body suits [ 15 ], and headphone type displays [ 39 ], but instances are scarce.…”