Graco SlimFit 3-in-1 vs Joie saffron SI 4-in-1

The saffron SI 4-in-1 is 0.9 in narrower. The SlimFit 3-in-1 lists for $20 less.

Only the differences are shown.

Graco SlimFit 3-in-1Joie saffron SI 4-in-1
TypeAll-in-oneAll-in-one
List price$229.99Lowest price$249.99
Rear-facing weight5–40 lb4–40 lb
Rear-facing heightUp to 49 inUp to 43 in
Forward-facing weight26.5–65 lb30–65 lb
Forward-facing heightUp to 49 inUp to 49 in
Booster weight40–100 lb40–120 lb
Booster height43–57 inUp to 60 in
Seat weight19.47 lbLightest23.1 lb
Width19.9 in19 inNarrowest
Head ruleRear-facing: whose head is at least 1” (2.5 cm) below the headrest adjustment handle. Forward-facing: top of child’s ears must be below top of headrest.Rear-Facing: The harness straps MUST be AT or JUST BELOW the child’s shoulders, and the top of child’s head MUST be at least 1 in. (2.5 cm) below the top of the child restraint.
Newborn insertInfant Head Support and Body Support (on select models) can be used ONLY for children weighing less than 20 lb (9 kg); body support must be used if shoulders are below the lowest harness setting.Infant insert can be used for smaller babies, but MUST be removed once the child reaches 11 lb. (5 kg).
InstallationLATCHvehicle seat belt (lap/shoulder or lap-only), LATCH lower anchor attachments
Load legNoNo
Anti-rebound barNoNo
RotatesNoNo
Harness heightsNot listed10
Recline positions43
Aircraft labelCertified for aircraft, per the makerNot certified for aircraft
Expires after10 years10 years

Graco SlimFit 3-in-1

Graco narrow all-in-one seat with rear-facing harness, forward-facing harness and highback booster modes. Graco lists model 2215455 with push-button InRight LATCH, 10 headrest positions and 4 recline positions.

  • Three modes in one seat
  • Cup holders rotate away; Graco says this makes the seat up to 10% slimmer
  • Push-button InRight LATCH

Joie saffron SI 4-in-1

Four-mode Joie seat (rear-facing, forward-facing, harness booster, belt booster) with a 3-position recline, listed on the Joie US site.

  • Four modes in one seat
  • Seat belt or LATCH installation
  • 3 recline positions
  • Maker states it is not certified for aircraft use
Ask the meadow

SlimFit 3-in-1 or saffron SI 4-in-1?

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 SlimFit 3-in-1 or the saffron SI 4-in-1?

The Joie saffron SI 4-in-1: it goes rear-facing, then forward-facing with a harness, then booster, up to 120 lb. The SlimFit 3-in-1 goes rear-facing, then forward-facing with a harness, then booster, up to 100 lb. The saffron SI 4-in-1 expires after 10 years.

Which is easier to travel with?

SlimFit 3-in-1: certified for planes, 19.5 lb. saffron SI 4-in-1: 23.1 lb.

What does the extra $20 for the saffron SI 4-in-1 get you?

No extra listed feature from the ones we track (load leg, anti-rebound bar, rotation, flame retardants). Compare fabrics, ease of install, and fit in your car. Both meet the same federal crash standard.

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