Chicco MyFit Zip Air vs Harmony Defender 360° MAX 3-in-1 Deluxe

Side-by-side specs from each maker.

Only the differences are shown.

Chicco MyFit Zip AirHarmony Defender 360° MAX 3-in-1 Deluxe
TypeHarness-to-boosterHarness-to-booster
Forward-facing weight25–65 lb26.5–65 lb
Forward-facing heightUp to 54 in27–57 in
Booster weight40–100 lb40–120 lb
Booster height38–57 in34–57 in
Seat weight26 lb18 lbLightest
Width17.5 inNot listed
Head ruleHarness mode only when 'Harness Straps can be positioned at or above the child's shoulders' (manual Select Harness Mode page); no top-of-head rule found in manualHarness mode: Child's ears MUST BE BELOW top of the headrest.
Newborn insertNot listedInfant insert cushion: 'Harmony recommends that you use the infant insert cushion until your child has reached a minimum of 35 pounds (15.8 kg).'
InstallationLATCH forward-facing + top tether (harness, child up to 40 lbs), seat belt forward-facing + top tether (harness), booster: vehicle lap-shoulder belt (LATCH and top tether optional)LATCH (harness mode, not over 50 lbs), vehicle lap-and-shoulder belt, vehicle lap-only belt (harness mode), top tether (harness mode)
Load legNoNo
Anti-rebound barNoNo
RotatesNoNo
Harness heights99
Recline positions4Not listed
Aircraft labelCertified for aircraft, per the makerCertified for aircraft, per the maker
Expires after8 years10 years

Chicco MyFit Zip Air

    Harmony Defender 360° MAX 3-in-1 Deluxe

    • Manual lists harness use 22 - 65 pounds and booster use 40 - 120 pounds
    • Manual lists aircraft certification with the harness
    • Manual lists a one-hand headrest button
    • Manual says forward-facing only; no rear-facing limits
    Ask the meadow

    MyFit Zip Air or Defender 360° MAX 3-in-1 Deluxe?

    Answers come from each maker's published specs. Safety and health questions link to the agency or medical source.

    Which one will my child use longer, the MyFit Zip Air or the Defender 360° MAX 3-in-1 Deluxe?

    The Harmony Defender 360° MAX 3-in-1 Deluxe: it goes forward-facing with a harness, then booster, up to 120 lb. The MyFit Zip Air goes forward-facing with a harness, then booster, up to 100 lb. The Defender 360° MAX 3-in-1 Deluxe expires after 10 years.

    Which is easier to travel with?

    MyFit Zip Air: certified for planes, 26 lb. Defender 360° MAX 3-in-1 Deluxe: certified for planes, 18 lb.

    Still wondering? Write to us at hello@cribpicks.com and we'll look it up.