Chicco Stack 1-2-3 vs Chicco Stack Hi-Lo 6-in-1

Side-by-side specs from each maker.

Only the differences are shown.

Chicco Stack 1-2-3Chicco Stack Hi-Lo 6-in-1
TypeHigh chairHigh chair
Harness5-point5-point
Weight limit40 lb40 lb
Limits by modebooster: up to 50 lb; stool: up to 60 lb, at least 3 years oldbooster: up to 50 lb; stool: up to 100 lb, at least 3 years old
Modes3: high chair, booster, youth stool6: high chair, chair booster, youth stool, low chair, toddler chair, booster plus stool combo
ReclinesYesYes
HeightNot listedstool: two height adjustments; low chair: legs shortened
Traysnap-on, one-hand removal and adjustment, removable linerNot listed
Chair weight16 lb16 lb
MaterialNot listedmetal frame; seat pad 100% recycled PET
Washable cushionYes, per the makerYes, per the maker
Maker's use notesBooster use only on dining chairs with a seat at least 15 in wide, 14 in deep and a backrest at least 12 in highBooster use only on dining chairs with a seat at least 15 in wide, 14 in deep and a backrest at least 12 in high

Chicco Stack 1-2-3

A three-mode chair that works as a high chair, a booster on a dining chair and a youth stool.

  • Three recline positions with one-hand adjustment
  • Machine-washable seat pad
  • Tray storage on rear legs
  • No fold stated
  • Booster needs a dining chair of at least the stated size

Chicco Stack Hi-Lo 6-in-1

A six-mode chair that converts from high chair to booster, youth stool and low chair, with a metal frame and washable pad.

  • Stool mode rated up to 100 lb
  • Three recline positions with one-hand adjustment
  • Machine-washable seat pad
  • No fold stated
  • Booster needs a dining chair of at least the stated size