Nuna DEMI Next Sibling Seat vs UPPAbaby PiggyBack for Vista

They're made for different strollers: check each fit list. The PiggyBack for Vista goes to 55 lb; the DEMI Next Sibling Seat to 50 lb.

Only the differences are shown.

Nuna DEMI Next Sibling SeatUPPAbaby PiggyBack for Vista
TypeRide-on board or second seatRide-on board or second seat
Fits these strollersNuna DEMI next strollerVista models 2015 and later (Vista, Vista V2, Vista V3 families); single and double mode
Child weightUp to 50 lbUp to 55 lb
Weight10 lbNot listed
Size9 × 16.5 × 36.5 inNot listed
MaterialRemovable merino wool insert; water-repellent UPF 50+ canopy fabricNot listed
Maker's use notesMaker lists birth to 50 lb and up to 45 in tall. When used with a bassinet or infant carrier, those manuals' limits apply.Stroller can fold with PiggyBack attached. Maker limit 55 lb.

Nuna DEMI Next Sibling Seat

A full second seat for the DEMI next with forward and rear-facing modes, four recline positions and a rain cover included.

  • Mounts top or lower position
  • Rain cover included
  • Converts to mesh for summer
  • Only listed for DEMI next

UPPAbaby PiggyBack for Vista

Ride-along board that lets an older child stand behind the stroller.

  • Attaches to the stroller