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Deal.ai › Joie › Booster Seats
Joie
Joie Latch SI 3-in-1 Harness Booster Car Seat

Joie Latch SI 3-in-1 Harness Booster Car Seat

Best price now

$239.99at TargetChecked 1 h ago

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Price facts

  • Lowest price today: $239.99 at Target (checked Nov 11, 2026).

Our take on the Joie Latch SI 3-in-1 Harness Booster Car Seat

The Joie Latch SI is a forward-facing seat that works three ways: a 5-point harness seat, a high-back belt-positioning booster, and a backless booster. It stands out for its 15-position headrest and 4-position seat depth, which let it grow from a small preschooler to a big kid. It is a heavy seat at about 24 lb in harness mode, so it is best left installed in one car rather than moved often. Against rivals like the Graco Nautilus and Evenflo Maestro, it offers more headrest adjustment but a narrower harness weight ceiling of 65 lb.

Best forFamilies who want one seat from harness age to backless boosterKids who need a tall, adjustable headrestLong-term use in a single vehicleParents who want side impact protection in a budget seat
Pros
  • Three modes cover harness, high-back and backless use
  • 15-position headrest and 4-position seat depth fit growing kids
  • Side impact protection built into the shell
  • Harness rated from 30 to 65 lb
  • Backless mode supports kids up to 120 lb
Cons
  • About 24 lb in harness mode makes it hard to move between cars
  • Harness tops out at 65 lb, lower than some rivals
  • Bulky shell takes up rear-seat space
  • No recline in booster modes

Joie Latch SI 3-in-1 Harness Booster Car Seat prices at every store

  • TargetNew

    In stock

    $239.99Free shippingChecked 1 h ago
    Visit Target

Store links may earn us a commission. Price via Klarna.

Joie Latch SI 3-in-1 Harness Booster Car Seat price history

Lowest price we've seen: $239.99 on Nov 11 at Target. Tracked across 1 store since Nov 11.

What reviewers say

Owner feedback is limited, but the seat is generally seen as a solid value for its three modes and adjustable fit. Common complaints center on its weight and bulk.

What people mention
  • WeightCriticisedOwners say the harness-mode seat is heavy and awkward to carry between cars.
  • AdjustabilityPraisedThe 15-position headrest and 4-position seat depth are called easy to adjust as kids grow.
  • FitPraisedReviewers say it fits tall kids well through the booster stages.
  • BulkCriticisedThe wide shell is said to crowd the rear seat.

About the Joie Latch SI 3-in-1 Harness Booster Car Seat

The Joie Latch SI 3-in-1 Harness Booster Car Seat changes with the child. It works as a harness booster, a highback booster and a backless booster. It includes Advanced Side Impact Protection (ASIP).

The seat has a 15-position headrest and a 4-position adjustable seat depth. In harness mode it fits children from 30 lb. up to 65 lb. and from 27 up to 49 inches tall. As a highback booster it fits children from 40 lb. up to 100 lb. and up to 57 inches tall. As a backless booster it fits children from 50 lb. up to 120 lb. and from 43 up to 60 inches tall.

Type
3-in-1 harness, highback and backless booster
Safety feature
Advanced Side Impact Protection (ASIP)
Harness mode
30 lb. up to 65 lb.; 27 up to 49 inches
Highback mode
40 lb. up to 100 lb.; up to 57 inches
Backless mode
50 lb. up to 120 lb.; 43 up to 60 inches
Headrest
15 positions
Seat depth
4 adjustable positions
Dimensions
16 x 19 x 24 in. (L x W x H)
Backless size
16 x 19 x 9 in. (L x W x H)
Weight
23.7 lb.; 5.2 lb. backless

Specifications

Features
Side Impact Protection (ASIP)Source
Product dimensions
l 16 x w 19 x h 24 in.Source
Backless dimensions
l 16 x w 19 x h 9 in.Source
Approx weight
23.7 lb.Source

Questions and answers

How long does the Joie Latch SI last?
It covers harness use from 30 to 65 lb, high-back booster use up to 100 lb, and backless booster use up to 120 lb. That spans roughly preschool through elementary school.
Does it work as a backless booster?
Yes. The back removes to make a backless booster for kids from 50 to 120 lb and 43 to 60 inches tall.
How does it compare with the Graco Nautilus?
Both are 3-in-1 seats. The Joie has more headrest positions, while the Graco harnesses to a higher weight. The Joie is the lighter of the two in backless mode.
Is it easy to install?
It uses a LATCH connection and a belt path for harness mode. Owners find it stays put once installed but heavy to move.
What are the seat dimensions?
It measures about 16 by 19 by 24 inches as a high-back and 16 by 19 by 9 inches backless. Check your rear-seat width before buying.
Does it have side impact protection?
Yes. Joie builds side impact protection into the shell and headrest.
Where is the Joie Latch SI 3-in-1 Harness Booster Car Seat cheapest?
At Target, for $239.99, as of our latest check.

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Compare the Joie Latch SI 3-in-1 Harness Booster Car Seat

  • Joie Baby Saffron SI 4-in-1 Convertible Car Seat vs Joie Latch SI 3-in-1 Harness Booster Car Seat
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Buying guides that pick the Joie Latch SI 3-in-1 Harness Booster Car Seat

  • Best Joie car seats with LATCH

Stores we've priced the Joie Latch SI 3-in-1 Harness Booster Car Seat at

Backless weight
5.2 lb.Source
Harness weight range
30 lb. up to 65 lb.Source
Harness height range
27 up to 49 inchesSource
Highback weight range
40 lb. up to 100 lb.Source
Highback height limit
up to 57 inchesSource
Backless weight range
50 lb. up to 120 lb.Source
Backless height range
43 up to 60 inchesSource
Headrest positions
15-position headrestSource
Seat depth positions
4-position adjustable seat depthSource
Target deals and prices

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