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Britax Marathon ClickTight vs Joie Chili Spin SI

The Marathon ClickTight is 1.2 in narrower. The Marathon ClickTight lists for $40 less.

Britax Marathon ClickTight$299.99
See it on Britax's site
Joie Chili Spin SI$339.99
Check price at AmazonSee it on Joie's site

Only the differences are shown.

Britax Marathon ClickTightJoie Chili Spin SI
TypeConvertibleConvertible
List price$299.99Lowest price$339.99
Rear-facing weight5–40 lb4–40 lb
Rear-facing heightUp to 49 inUp to 43 in
Forward-facing weight20–65 lb30–65 lb
Forward-facing heightUp to 49 inUp to 49 in
Seat weight28.5 lbLightest28.57 lb
Width18.5 inNarrowest19.7 in
Head ruleRear-facing: when the top of the child's head is at least 1 in. (2.5 cm) below the top of the head restraint/pad. Forward-facing: when the top of the ears are below the top of the head restraint/pad.The top of the child's head MUST be at least 1 in. (2.5 cm) below the top of the child restraint
Newborn insertNot listedInfant insert ('can be used as necessary, to provide a snug fit for small babies'); weight limit not stated in captured text.
InstallationClickTight (seat belt)seat belt with LockTight tensioner
Load legNoNo
Anti-rebound barNot listedYes
RotatesNoYes
Harness heights1410
Recline positionsNot listed4
Aircraft labelCertified for aircraft, per the makerNot certified for aircraft
No added flame retardantsYesNot listed
Expires after10 years10 years

Britax Marathon ClickTight

A convertible seat that rear-faces to 40 lb and forward-faces to 65 lb, installed with Britax's ClickTight belt-lock system.

  • ClickTight installation
  • 14 harness positions
  • Rear-facing to 40 lb
  • Heavy at 28.5 lb
  • No booster mode
See it on Britax's site

Joie Chili Spin SI

A rotating 2-in-1 convertible that turns toward the door for loading and works rear-facing to 40 lb and forward-facing to 65 lb.

  • 360-degree rotation makes buckling easier
  • Rear-facing limit of 40 lb and 43 in
  • Four recline positions
  • Heavy at about 28.6 lb
  • Not approved for aircraft use
Check price at AmazonSee it on Joie's site
Ask the meadow

Marathon ClickTight or Chili Spin SI?

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

Which is easier to travel with?

Marathon ClickTight: certified for planes, 28.5 lb. Chili Spin SI: 28.6 lb.

What does the extra $40 for the Chili Spin SI get you?

Per the makers, the Chili Spin SI adds an anti-rebound bar, rotation. Both meet the same federal crash standard.

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