A modular stroller having a wagon-like configuration. The stroller includes a collapsible frame having a handle portion front and rear body portions and a bottom body portion, and a foldable receptacle body configured to receive a child's body thereon. The foldable receptacle body is configured to be removably securable within the collapsible frame. The modular wagon stroller is movable between (1) a fully open position, (2) a partially folded position, and (3) a fully folded (i.e., closed) position.

A stroller apparatus includes a front and a rear leg, a side handrail respectively connected pivotally with the front and rear legs, a handle pivotally connected with the side handrail, a seat support frame including a side bar located below the side handrail and pivotally connected with the front leg and the handle, a first seat detachably installable on the side handrail facing rearward at a first position adjacent to the handle, and a second seat detachably installable on the side bar facing rearward at a second position, the second position being located below the first position and adjacent to the handle.

An infant carrier includes a surrounding frame, a seat portion pivotally connected with the surrounding frame, a headrest portion pivotally connected with the surrounding frame, a backrest portion respectively connected pivotally with the seat portion and the headrest portion, and a latching mechanism assembled with the backrest portion and operable to selectively engage with either of the seat portion and the headrest portion, the latching mechanism being configured to lock the infant carrier in either of a bassinet configuration and a seat configuration. The seat portion and the backrest portion are substantially coplanar and the headrest portion extends at an angle from the backrest portion to the surrounding frame when the infant carrier is in the bassinet configuration, and the headrest portion and the backrest portion are substantially coplanar and the backrest portion extends at an angle from the seat portion when the infant carrier is in the seat configuration.