Graco SlimFit All-in-One Review (2023)

Graco SlimFit All-in-One Review (1)

This Product
Graco SlimFit All-in-One

Graco SlimFit All-in-One Review (2)

Britax Emblem

Graco SlimFit All-in-One Review (3)

Graco Extend2Fit

Graco SlimFit All-in-One Review (4)

Britax Allegiance

Graco SlimFit All-in-One Review (5)

Chicco NextFit

AwardsGraco SlimFit All-in-One Review (6)Graco SlimFit All-in-One Review (7)
Price$220 List
$219.97 at Amazon
Check Price at Amazon$235 List
$234.99 at Amazon
$230 List
$229.99 at Amazon
$250 List
Overall Score






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ProsPrice, easy LATCH installation, easier to useGreat crash test results, easy to use, attractive price, lighterBest crash test results, rear-facing till 50 lbs, pricePrice, easy to use, best head sensor crash testVery easy to install, non-rethread harness, comfortable, nice quality
ConsAverage crash result analysisHarder to install using the vehicle beltNot the best quality, harder belt installationLess padding, somewhat harder to install using vehicle beltHard to remove fabric, difficult belt lock-off
Bottom LineSlightly better than an average seat with no real standout featuresA lightweight, easy to use seat with excellent crash test result and priceBest crash test results on a budget-friendly seat that lets little ones sit rear-facing for longerBetter crash test results make this easy to use, inexpensive seat a winnerA nice seat that is easy to install, but the crash results are only average
Rating CategoriesGraco SlimFit All-i...Britax EmblemGraco Extend2FitBritax AllegianceChicco NextFit
Crash Test (35%)






Ease Of Install - LATCH (20%)






Ease Of Install - Belt (15%)






Ease Of Use (15%)






Comfort / Quality (10%)






Weight / Size (5%)






SpecsGraco SlimFit All-i...Britax EmblemGraco Extend2FitBritax AllegianceChicco NextFit
Crash Test HIC Score320218214186336.6
Crash Test Chest G Clip4342404345.7
Min/Max Rear Facing Passenger Weight5 - 40 lbs5 - 40 lbs4 - 50 lbs5 - 40 lbs5 - 40 lbs
Min/Max Forward Facing Passenger Weight22 - 65 lbs20 - 65 lbs22 - 64 lbs20 - 65 lbs22 - 65 lbs
Max Rear Facing Passenger Height40" and the child's head must be at least 1 in. below the top of the child restraint.Child's head must be at least 1 in. below the top of the head restraintChild's head must be at least 1 in. below the top of the head restraintChild's head must be at least 1 in. below the top of the head restraintNot Listed
Max Forward Facing Passenger Height49" and the child's ears must be below the top of the seat shell.49" and the child's ears must be below the top of the head restraint.49" and the child's ears must be below the top of the seat shell.49" and the child's ears must be below the top of the head restraint.49"
Measured Rear Facing Seat Weight18.6 lbs18.8 lbs18.7 lbs18.5 lbs25.3 lbs
Measured Forward Facing Seat Weight18.6 lbs18.8 lbs18.7 lbs18.5 lbs24.9 lbs
Recline Positions4 Total
2 Rear Facing
2 Forward Facing
1 Booster
1 Rear Facing
2 Forward Facing
4 Rear Facing
3 Forward Facing
1 Rear Facing
2 Forward Facing
Max Recline Angle°42°51°42°53°
Shoulder Harness Positions101010106
Crotch Strap Positions32222
Built in Lock OffNoYesNoYesYes
Anti-rebound DeviceNoNoNoNoNo
Head SupportNoNoNoNoYes
Newborn InsertYesYesYesYesYes
No Rethread HarnessYesYesYesYesYes
Onboard Manual StorageYesYesYesYesYes
Level Indicator On SeatBall in Tube.Line on DecalBall in Tube.Line on DecalBubble Vial
Seat Lifespan10 yrs77 yrs78 yrs
Warranty1 Year1 Year1 Year1 Year1 Year

The Graco we know and love began in 1953 after the metal fabrication company hired an engineer to design something new. Rex Thomas and David Saint were inspired by a coworker's story of soothing a baby using an outdoor glider. Their unique baby swing design launched Graco into the baby product world, selling millions in a short time. Graco continues to create baby gear, including strollers, some family favorite car seats, swings, and more.

Performance Comparison

Graco SlimFit All-in-One Review (9)

Crash Test

The Graco SlimFit All-in-One crash test analysis score is just below the average. While it passes the federal safety standards, it does not appear to offer an additional margin of protection compared to the competition, in our opinion.

Graco SlimFit All-in-One Review (10)

The HIC result for this Graco (chart above) is 320, where the maximum allowed is 1000, and a lower number is better. This result is fairly impressive on its own as it is significantly below the max allowed. Still, when compared to the competition where several seats had results below 300 and the best being a 186 for the Britax Allegiance, you can see how it didn't measure up to the competition.

Graco SlimFit All-in-One Review (11)

The Slim's chest sensor result (chart above) is 43, where the maximum allowed is 60. Once again, it easily passes the federal standard, and viewed on its own, it feels like a good score. However, the lowest result, and therefore the best in this group, is a 34 earned by the Clek Foonf.

The best-combined results for HIC and chest sensors belong to the Graco Extend2Fit.

Graco SlimFit All-in-One Review (12)
Graco SlimFit All-in-One Review (13)
(Video) Review: Graco SlimFit All-in-One Convertible Car Seat in Maxwell (Lethal Suburban)

Ease of Install - LATCH

The SlimFit All-in-One has push connect LATCH anchors we like better than clip style, and it earned its best installation score using LATCH. Attaching the anchors is easy, and tightening the strap wasn't a hassle. Loosening the strap is also simple, and we didn't need extra strength to install or remove the seat as we did with some of the competition.

Graco SlimFit All-in-One Review (14)

We were able to get a more secure feeling fit with the seat in the rear-facing position. Still, both were stable enough that we didn't experience significant movement when properly installed. Whether you install using LATCH or the vehicle belt, you need to move some padding around to get the straps in the right location. This isn't hard but is more convoluted than some of the more straightforward competition. An easy-to-read ball level indicator ensures the seat is installed at the correct angle.

Graco SlimFit All-in-One Review (15)
(Video) [Review & Demo] Graco SlimFit 3-in-1 Car Seat Unboxing & Assembly || Convertible Car Seat
Graco SlimFit All-in-One Review (16)

Ease of Install - Belt

Installing the Graco SlimFit All-in-One using the vehicle belt is somewhat harder than the LATCH, but it only lost a point for this method. The padding on the seat and seatback needs to be moved to thread the belt, and those with larger hands are going to struggle with the smaller belt path openings. Potentially making this installation more challenging for some dads.

Graco SlimFit All-in-One Review (17)
Graco SlimFit All-in-One Review (18)

Rear-facing shoulder/lap belt installation is easier and feels more secure in our tests than front-facing, where we struggled to get the vehicle belt tight enough to hold the seat in one position. However, when installed rear-facing, the entire seat was able to tip back toward the vehicle seat.

Graco SlimFit All-in-One Review (19)

(Video) Graco SlimFit 3-in-1 Convertible Car Seat Installation & Review

Ease of Use

The SlimFit All-in-One is easier to use than much of the competition in our best convertible car seat review, with a straightforward design and nothing fancy to figure out.

Graco SlimFit All-in-One Review (20)


The buckle on this seat is similar to other Graco buckles, and while easier to depress than some previous versions, it is still not as nice as some contenders. The chest clip isn't as intuitive as some of the competition, and while it works fine, it isn't our favorite.

Graco SlimFit All-in-One Review (21)

The harness on the SlimFit All-in-One is super easy to adjust with a non-rethread style that operates smoothly by squeezing the lever at the top and sliding the entire headrest. The shoulder straps have 10 possible height positions for a good fit, and the crotch strap has three.

Graco SlimFit All-in-One Review (22)
Graco SlimFit All-in-One Review (23)
(Video) Graco Slimfit3 LX 3-in-1 Car Seat Review

LATCH Storage

The LATCH anchors attach on the Slim high on the sides of the shell (above left) or under the front edge of the seat, and the tether clips high on the side—both locations sort of fail at keeping the straps and anchors out of the way of passengers. Not only are they uninspired, but they aren't very functional. The user manual stows in a pocket on the seat's back (above right) within easy access even if the seat is installed.


The Graco SlimFit All-in-One cover is average for ease of removal. It can be a little tricky under the seat bottom, but it is manageable. The cover is machine washable but must be line dried. This process is probably best done overnight or when you know, you won't need the seat as drying times will vary based on your local climate.

Graco SlimFit All-in-One Review (24)


The Graco SlimFit All-in-One is a good-looking seat at first blush, but when you dive deeper, it isn't a standout in this metric compared to the competition. The overall padded is decent and supportive, but it isn't great and won't offer long-term comfort on road trips cross country. It also comes with a collapsible cup holder.

Graco SlimFit All-in-One Review (25)

The fabric is two styles with a tighter weave on the seat's body and a strange mesh style material on the edges. Neither is particularly skin-friendly, and gunk can easily collect in the mesh weave. The outer shell is mostly self-contained, and it looks good compared to other seats in the same price range. The bottom is smooth and shouldn't cause damage to vehicle seats. The overall fit and finish are nice for a Graco mid-range product, but overall it struggles to keep up with the options that give more attention to padding and fabric for comfort.

Graco SlimFit All-in-One Review (26)


While weight for a convertible seat may not be as crucial as it is for an infant carrier, it can still factor into decision-making if you travel or need to carry it. The Graco SlimFit All-in-One is 18.6 lbs, which is relatively lightweight for this group, but some weigh significantly less and score higher or have better crash test sensor readings.

Should You Buy the Graco SlimFit All-in-One ?

While we understand the appeal of an all-in-one product, as it can save you money and potential time, we do not think this is a good idea, nor is this seat a great choice. Because safety seats across types are designed with a specific size and developmental level in mind, we believe it is safer to use an infant seat for babies under nine months and a convertible seat for those who have outgrown their infant carrier. Even if you aren't considering this car set as an all-in-one option, it still didn't perform as well as the competition. We think better options are available with higher individual scores in almost every metric. We aren't even sure why it is called the "Slimfit" as it is 19 inches and only slightly smaller than a competing Graco but definitely bigger than options like the Clek Foonf, which are 17 inches.

What Other Convertible Car Seat Should You Consider?

We think the Graco Extend2Fit is the better Graco to buy. This seat has one of the best scores for crash tests, and it is virtually the same size and price as the Slimfit. We prefer the Extend2Fit for its longer lifespan of 50 lbs, and even though you'll need to buy a separate booster, the price is low enough that you can cross that brings when it is safer to get there without your budget taking a big hit. We believe that most families will enjoy the Extend2Fit.


1. Graco SlimFit™ Group 0+/1/2/3 Car Seat Installation Video
(Graco UK)
2. Graco Slimfit 3 in 1 vs Extend2Fit vs 4EverDLX vs Grows4Me vs TriRide vs TrioGrow vs Milestone
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3. Graco SlimFit3 LX 3-in-1 Convertible Car Seat Review
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4. Graco Slimfit 3 in 1 car seat Review | Graco Slimfit 3 in 1 car seat Unboxing and installation
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5. Graco SlimFit™ Group 0+/1/2/3 installation video
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6. Graco SlimFit LX 3in1 Car Seat Review
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