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Joie saffron SI 4-in-1

The Joie saffron SI 4-in-1 rear-faces up to 40 lb, forward-faces up to 65 lb, and is 19 in wide, per Joie. Four-mode Joie seat (rear-facing, forward-facing, harness booster, belt booster) with a 3-position recline, listed on the Joie US site.

  • $249.99List price
  • 40 lbRear-facing to
  • 65 lbHarness to
  • 120 lbBooster to
See it on Joie's site

When does it expire?

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saffron SI 4-in-1: key facts

  • The Joie saffron SI 4-in-1 rear-faces from 4 to 40 lb and up to 43 in tall; forward-faces with a harness from 30 to 65 lb and up to 49 in tall; works as a booster from 40 to 120 lb and up to 60 in tall, per Joie.
  • Outgrown by height: "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."
  • It installs with vehicle seat belt (lap/shoulder or lap-only) or LATCH lower anchor attachments.
  • Joie says it expires 10 years after the date of manufacture.
  • Joie says it isn't certified for aircraft.
  • It's 19 in wide at the widest point and weighs 23.1 lb.

From Joie's manual and published specs. Always follow the limits on your seat's labels.

How the saffron SI 4-in-1 stacks up

Against the 57 all-in-one car seats we track. The shaded band is where the middle half of them fall; the dot is this one.

Expiration10 years

The same as most all-in-one car seats (10 years).

This one
9 yearsmiddle 10 years12 years
Rear-facing limit40 lb11th highest rear-facing limit of 57

The same as most all-in-one car seats (40 lb).

This one
40 lbmiddle 40 lb50 lb
Width19 in15th narrowest of 33

Within the typical range for all-in-one car seats (18.3 in to 19.5 in).

This one
16.7 inmiddle 19 in21.5 in
Weight23.1 lb16th lightest of 35

Within the typical range for all-in-one car seats (20 lb to 29.3 lb).

This one
12.2 lbmiddle 25.2 lb35 lb
Price$249.9919th lowest price of 54

Within the typical range for all-in-one car seats ($229.99 to $399.99).

This one
$99middle $319.99$799.95

What sets the saffron SI 4-in-1 apart

Measured against the 57 all-in-one car seats we compare, from each maker's published specs.

  • No aircraft labelunlike most: 45 of 53 all-in-one car seats have it
  • Width: 19 inin the middle half of the 33 all-in-one car seats that publish it (18.3 in to 19.5 in)
  • Weight: 23.1 lbin the middle half of the 35 all-in-one car seats that publish it (20 lb to 29.3 lb)

Next to its closest matches

Listed features

  • Four modes in one seat
  • Seat belt or LATCH installation
  • 3 recline positions
  • Maker lists 10 years from original purchase

Worth checking

  • Maker states it is not certified for aircraft use

Where to buy the saffron SI 4-in-1

Prices and availability change. We may earn a commission from some links.

good to know
  • Check for recalls: Search the agency's recall list with the model number and date code from the label: NHTSA recall search.
  • Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

Full specs

Joie saffron SI 4-in-1
TypeAll-in-one
List price$249.99
Rear-facing weight4–40 lb
Rear-facing heightUp to 43 in
Forward-facing weight30–65 lb
Forward-facing heightUp to 49 in
Booster weight40–120 lb
Booster heightUp to 60 in
Seat weight23.1 lb
Width19 in
Head ruleRear-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 insert can be used for smaller babies, but MUST be removed once the child reaches 11 lb. (5 kg).
Installationvehicle seat belt (lap/shoulder or lap-only), LATCH lower anchor attachments
Load legNo
Anti-rebound barNo
RotatesNo
Harness heights10
Recline positions3
Aircraft labelNot certified for aircraft
Expires after10 years

Compare the saffron SI 4-in-1 with

How each closest rival differs from the saffron SI 4-in-1, from the makers' specs.

Ask the meadow

saffron SI 4-in-1: questions answered

From Joie's published specs, last checked 2026-11-06.

Does the Joie saffron SI 4-in-1 rear-face longer than other all-in-one seats?

15 of the 70 all-in-one seats we track rear-face to a higher weight than its 40 lb. The highest is the Britax One4Life ClickTight All-in-One at 50 lb. NHTSA: stay rear-facing "until he or she reaches the top height or weight limit allowed by your car seat's manufacturer." (NHTSA)

Will the Joie saffron SI 4-in-1 fit three across or in a small car?

It's wider than 58% of the all-in-one seats we track, at 19 in. The narrowest is the Chicco Fit3x ClearTex Ultra-Slim All-in-One at 16.7 in. Fit depends on your vehicle; check each seat's manual and your vehicle manual. Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

Can you bring the Joie saffron SI 4-in-1 on a plane?

Joie doesn't list it as certified for aircraft, so it can be checked as luggage but not used in the plane seat. See seats approved for planes.

saffron SI 4-in-1 or All4Stages Slim Plus Canopy 4-in-1: what's different?

By the makers' specs, the saffron SI 4-in-1 lists for $10 less. See every spec side by side.

Is it OK to buy a used saffron SI 4-in-1?

NHTSA publishes guidance on used car seats on its car seat page. Joie lists a lifespan of 10 years from manufacture for this model. Check the label and the maker's instructions, and ask your pediatrician about your child.

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

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Where these specs come from

Last checked 2026-11-06. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.