Graco Slimfit3 LX 3-in-1 Car Seat (Katrina) product image (primary)
Child car seat with purple padded insert set in a black plastic shell, adjustable headrest, five-point harness, two cup holders, and sticker graphics on the base.

Graco

Graco Slimfit3 LX 3-in-1 Car Seat (Katrina)

4.7/5 (2,067)
$239.99$299.99-20%
Out of Stock

The Graco SlimFit3 LX 3-in-1 Car Seat is a narrow (16.7-inch wide) convertible car seat designed to fit three across in most vehicles, transitioning from rear-facing harness (5-40 lb) to forward-facing harness (26.5-65 lb) to highback booster (40-100 lb). Key features include InRight LATCH for one-second attachment, an integrated belt lock-off for forward-facing installation, and a No-Rethread Simply Safe Adjust harness system with 10 positions. However, installation can be challenging, particularly with seatbelt in rear-facing mode, and the harness height may limit use for taller children.

Color
Katrina
Gender
unisex
Category
Baby & Toddler > Baby Transport > Baby & Toddler Car Seats
GTIN
047406190478
MPN
GRACO-047406190478-047406176335-NEWOVERSTOCK

Specifications

The Graco SlimFit3 LX 3-in-1 Car Seat is a slim, space-saving car seat that fits three across, with 3 modes (rear-facing, forward-facing, booster) and advanced safety features.

10-position No-Rethread Simply Safe Adjust Harness System, breathable mesh AirFlow channels, built-in LATCH system, 4-position recline, removable cup holders, steel-reinforced frame, EPS foam.

Color
Katrina
Gender
unisex
Age Group
toddler
Condition
new
Dimensions
20.7 x 16.7 x 24.5 in
Category
Baby & Toddler > Baby Transport > Baby & Toddler Car Seats

Additional Attributes

  • Fits 3 car seats across
  • 3-in-1 car seat: rear-facing, forward-facing, highback booster
  • Graco ProtectPlus Engineered
  • 10-position No-Rethread Simply Safe Adjust Harness System
  • Breathable mesh AirFlow channels
  • Integrated belt lock-off
  • Push-button InRight LATCH
  • 4-position recline
  • Side-impact tested
  • Fuss-free harness storage pockets
  • Harness storage compartment
  • Removable plush head and body inserts
  • 2 removable cup holders
  • Steel-reinforced frame
  • EPS energy-absorbing foam
  • Lightweight design
  • Rapid Remove cover, machine washable

Image Analysis

6 images
Graco Slimfit3 LX 3-in-1 Car Seat (Katrina) product image (primary)
01high

Child car seat with purple padded insert set in a black plastic shell, adjustable headrest, five-point harness, two cup holders, and sticker graphics on the base.

OCR: GRACO
purple padded seat insertblack plastic outer shelladjustable headrestfive-point harness with chest cliptwo molded cup holdersmesh fabric side panelscontoured seat paddingred plastic accent on sidewhite fabric label at top backreststicker graphics on base sidemetallic buckle tonguefabric shoulder strapsflat padded arm areasplastic recline/base platform
Graco Slimfit3 LX 3-in-1 Car Seat (Katrina) product image 2
02high

Three forward-facing child car seats installed side by side on a vehicle bench seat with three children seated; harnesses buckled and a center console visible in front. Marketing text banner above reads that the seats fit three across.

OCR: FITS 3 CAR SEATS ACROSS. Space-saving design for more room in your back seat
three forward-facing child car seatspadded seat shelladjustable headrestfive-point harness strapscentral buckleintegrated armrestscup holder on seat armbeige leather vehicle bench seatcenter console between front seats visiblerear side windowschildren seated (three)overhead interior roofblack and dark gray seat fabric and trimred harness release buttontop product text banner
Graco Slimfit3 LX 3-in-1 Car Seat (Katrina) product image 3
03high

Studio product image showing a convertible car seat in three configurations: rear-facing infant recline, forward-facing with 5-point harness, and highback booster with vehicle belt, accompanied by header text '3 Modes of Use' and weight ranges.

OCR: 3 Modes of Use. 1 Rear-Facing Harness 5-40 lb. 2 Forward-Facing Harness 22-65 lb. 3 Highback Booster 40-100 lb
text header '3 Modes of Use'blue numbered circle '1'blue numbered circle '2'blue numbered circle '3'rear-facing infant car seat positionforward-facing car seat position with 5-point harnesshighback booster seat position with vehicle beltblack car seat shellblack fabric seat paddinggray shoulder harness strapscup holder on right side of seatblue plastic accent tabswhite studio backgroundthree child models seated in each modestudio product shot with centered composition
Graco Slimfit3 LX 3-in-1 Car Seat (Katrina) product image 4
04high

Infant secured in a rear-facing padded car seat installed in a vehicle back seat. Image shows harness, chest clip, cup holder, and car interior surrounding the seat with promotional text above.

OCR: PROTECTPLUS ENGINEERED. helps protect in frontal, side, rear, and rollover crashes
infant seated in car seatrear-facing child restraintfive-point harnessharness chest clipadjustable headrestpadded head supportcup holder attached to seatfabric seat coverstitched seam detailingplastic shell basered accent on seat basetan leather car upholsteryfront passenger seat back with mesh pocketcar window and street viewseat belt routed and buckled
Graco Slimfit3 LX 3-in-1 Car Seat (Katrina) product image 5
05high

Close-up studio product shot of a child car seat side showing the plastic shell, padded fabric interior, harness components, red plastic accent, safety sticker, and a headline banner about a steel-reinforced frame.

OCR: STEEL-REINFORCED FRAME provides strength and durability for years of use
black hard plastic shellred plastic impact indicator or accentdark gray textured seat fabricpadded headrest cushionadjustable shoulder harness strapstrap bucklesafety instruction stickercup holder or recessed trayside carry handlestudio white backgroundtop promotional headline text band
Graco Slimfit3 LX 3-in-1 Car Seat (Katrina) product image 6
06high

Studio product photograph of a purple and black child car seat on a white background with blue annotated callouts pointing to features.

OCR: No-Rethread Simply Safe Adjust Harness. 10-position adjustable headrest. Breathable mesh AirFlow channels. Integrated belt lock-off. Removable, easy-clean cup holders. Rapid Remove seat cover. 4-position recline. InRight LATCH. GRACO
purple padded seat cushionblack plastic outer shellbreathable mesh fabric panels10-position adjustable headrestno-rethread simply safe adjust harnesscenter harness buckleintegrated belt lock-off hardwareremovable easy-clean cup holdersInRight LATCH connector arearapid remove seat cover label4-position recline adjustmentfoam padding in seatstudio white backgroundblue callout dots and linesproduct photography lighting

Brand PDP Lookup

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Documents & Data

Customer Reviews

2,067 total
4.7

2,067 reviews · out of 5

Fits great and safe

SumYan

We bought 2 one for our child forward facing and one backwards facing. We love them, the kids love them. We can fit 2 scroll in our Kia carnival, VW Atlas and ford focus. It has mesh on the sides to allow air come in. We would recommend

Excellent carseat

Ambi

The car seat was very easy to set up. It is slim and fits well in a small car. I really like how easy it is to adjust the height and straps.

Great car seat

Jjjj9

This car seat is comfortable for our child, and allows for us to fit 3 car seats in a small backseat. Very happy with the limit.

Good car seat, slim function is ideal

AFrodo

Purchased this car seat to move our 18 month up while we used her original car seat for new babies. Hoping to graduate the twins to the same in a year and half or so and fit the three across a bench seat in vehicle. Car seat is a little harder to install than the ones with the separate base. I feel that even though the recline is set correctly, our daughter’s head does tilt forward a little. I would be hesitant to use with young babies.

Exactly as advertised

bob273443

I was looking for a car seat that fits into a small car, and can be easily carried around. We have two cars, and I am often moving the seat from one car to the other. SlimFit is easy to install with the latches, and light enough that it is not too hard to carry.

Great car seat for compact fit

Sammie E

This car seat is constructed with high quality materials and was very easy to install. It is also very compact making it the perfect second car seat for our compact sedan. We previously had the Graco Turn2Me and have been very satisfied with both the quality of Graco car seats, the lifespan of the seats compared to other brands, and the amazing Graco customer service. We are already looking forward to buying a second SlimFit for our other car.

Great car seat

PhilH

Very narrow and shallow. Fits great in the cars and the kids still find it comfortable

comfy slim car seat

CKent

great car seat!! love the slim design so it fits in our cars better for our growing family. Easy and simple to install and never have to worry about safety with a graco product! Comfy car seat for my boys!

Great car seat

Sarah C D

Perfect fit it our car and our little girl loves it

Slimm

A Garcia

Its slim, fits perfectly. The new clips makes it easier to dettach.

Happy

Cydney B

This carseat was incredibly easy to install. Its sturdy, comfortable, and most importantly it is safe for my one-year-old. And the color is amazing.

Perfect for small suv

Sb1239987654321

Great size and not too cozy for as heat. Easy install and just overall love graco products! Tried even flos slim car seat model of this and returned it for this one instead!

Great car seat!

Jer M

This car seat is great! It fits really nicely in our car, and is really easy to get our child in and out of. The installation was easy and it seems comfortable for our baby. I love the fact that the cup holders can detach for extra space!

Perfect for 3 across

Caroline r

Just moved my baby to this convertible seat. It fits perfectly in my suburu outback with two Diono seats for my other kiddos. This seat is really nice, fit is snug but comfortable.

Comfy and fits well

MommaX7

It can be so hard to find something that fits well in a vehicle that a lot of seats just aren't built for. This seat was exactly what we needed to get our 1 year old safely out of her infant seat in our 12 passenger Ford Transit. It also fits well in our sedan with room for her older siblings next to her. The seat is comfortable, the color is cute, and she was so excited to have her own cupholders.

Graco slim fit

Ckenny23

This seat is great and works well. I like the slim design on it so grown ups can still have room sitting out back. I wish that you could remove the fabric in the seat to be able to put it in the washing machine and clean it easier.

Great in smaller cars

Catie R

We got the slim fit car seat for my crossover sized vehicle and it fits great. There is still plenty of room in the back seat for another passenger, and our baby is very comfortable in his car seat. Super easy to install too.

My research paid off, love this car seat!

C Fred

I did a lot of research before purchasing this car seat. I had my daughter in an infant carrier and she was getting too big, so I knew it was time to move up to a convertible seat. We drive a small car, a 2013 Kia Rio, and we are hoping to have another baby soon. My biggest priority was finding something that could fit in our backseat alongside an infant carrier. Specifically, I needed a car seat that would fit behind the driver when my husband was driving with the seat pushed back, because our infant carrier does not fit there when he’s driving, so if we are going to have another baby my daughter will have to be in that spot. Budget wasn’t my top concern, but I didn’t want to pay the price tag of some luxury brands. I found all of the resources on Graco’s website very helpful as I was measuring out the car and planning what to expect. I ordered the seat to be delivered to us and it arrived just a couple of days later, quite a bit faster than the shipping indicated it would take. The seat itself is awesome. Very high-quality, compact, and lightweight. It delivered on everything it promised. The safety features are top tier, and the latch system was super easy and quick to install. Not only will this fit next to our infant carrier, I believe there would be room to add a third car seat of this type in the back, although I certainly hope we have a bigger car by the time we are ready for a third baby! In the end, all my research paid off and I’m really happy with this purchase. I feel confident this car seat will be able to adapt to accommodate my growing family as our needs change. I would recommend it highly to others.

Great car seat

Mickey B

We like these car seats. They are compact, and fit my 3 year olds well. We needed new car seats after the foam inserts started falling off our old ones. After shopping around, and even buying a different one and returning it, we settled on these. I like that my kids are safe, and I appreciate all the protection, but it does make it hard to get them in the car seats. Our old design was much easier and sleek (though not as safe) I also wanted to rear face to the max size, but these car seats didn’t have a very high rear facing limit, and it was extremely difficult to get them in and out when rear facing. They are 33 lbs, so technically they still could, but this car seat doesn’t lend itself for that. Ultimately it was worth it for us to have a little bit more of a hard time as long as it keeps our kids safe.

Slim & Comfy

Bunny Mummy

It is so slim, I was worried my toddler wouldn’t be comfortable in it. But he seems to love it so far. It doesn’t have all the extra bulky padding, but is still soft and comfy. Also, love the airflow features.

It works.

Thomas I

No need for an overly drawn out review. The car seat does what it's intended to do.

Worth the price!

Mimi CJ

I was hesitant on the price, as I was purchasing for triplets, but these are high quality and provide peace of mind when it comes to safety.

Great Seat for 3 in a row!

Mom of 3 in Car Seats

Perfect car seat when you have 3 littles in seats still. This gives me the option to have all of my children in the 2nd row since they are slim enough to fit side by side. Very easy to install and also easy to take apart to wash. This is my 3rd seat and will be ordering more to put in their dad's truck.

Only purchase Graco!!!

Danie C

With two young boys and busy work schedules we have a total of four Graco car seats and love the safety features on all of them! We also have two strollers and cannot express how much we love the durability of each product!

Excellent compact car seat

AS8765

This car seat functions perfectly for us. It fits well in the small back seat of our FJ Cruiser. We have installed the infant car seat beside it proving it would work well for 3 across. It fits well in the center with plenty for room for my 6’4” husband to drive.

Three across!

Rosie Lord

I am super happy with how slim and still comfortable these car seat are! I drive a crossover and am able to fit 3 car seats across! Huge money saver not having to upgrade my car! Graco is such a reliable brand and our family trust them!

Great product!

Different one

We have loved our SlimFit3 LX 3-in-1 Car Seat for our little one. We purchased this a little over a month ago to transition out of the infant carry car seat and for our little one to use as she grows. The quality of this product has been great! We love the base latch on this model for ease of removing and switching to a different vehicle. With our older child we had the basic latches and the quick release of these is a game changer!

Love this car seat

Brower

I originally purchased this carseat in 2024 when my daughter went from an infant carseat to a convertible carseat. Recently we were in an accident where the rear of the car took the biggest hit. Long story short, her seat needed to be replaced, so naturally we re-purchased this model since it had kept her safe and basically injury free from the impact. We loved the slim profile and the mesh vents before, but we have a whole new appreciation for the durability and safety of this seat.

Great size car seat

LouC

Excellent car seat ! Love how it fits in car beside other seats

Great car seat!

Brittney E

We love this car seat and how much room it gives us in our car. My only complaint is installing it rear facing for infants. I find it a bit challenging. I'd recommend this more for children over the age of 2.

Easy and basic!

LBme512

Recently purchased and I am pretty happy with it. One complaint I have is the size of the cup holders, they are too small for some of the water bottles I have. This is the first seat I have had this issue with. Other than that, I would say it is a decent seat overall.

Great Car Seat!

TheGreatOne

This car seat sat perfectly in my car. Easy to install and the best part is that its stable when it comes to driving. Graco is great! I definitely would shop again when I need a new car seat!

Easy install

Ed6092

Installation was super easy and my baby seems to like the comfort of the pads.

Great size for small SUV

Jazmin D

This is our second SlimFit 3-in-1 car seat and we love it. We have a small SUV and there is still space in the middle seat, after installing both car seats on each side in the back.

Great features!

Faprouse

My son is super comfy. Installation was easy. Safety ratings are encouraging. Cup holders are a plus!

Comfortable and safe

Nikkki

This is my second of this carseat. My child finds it and has always found it very comfortable. We got a second because of a car accident. My child was unharmed and didn’t have any whiplash. The seat seemed fine but getting a new one when in an accident is always safest.

Buy it now! Comfy and cute!

Mommy P

My one year old twins love this car seat! They are both some comfortable and love the cup holders! It has much more cushion than our formers car seats. We will be a graco family! We love the color and how it will grow with the children!

We LOVE it!!

MommyOf2xo

I love the versatility and how easy it is to install! We have a smaller vehicle and it fits perfectly. It had two setting for rear facing, 1 sits baby up more, 2 leans back a bit. I haven’t tried the others out since she haven’t gotten there yet but for far i love it! Our 1 year old seems to be pretty comfy in there!

Quality.

Mike S

Quality product for the price. Works very well. Comfortable for kids.

Perfect for my toddler

Hannah27

Love this car seat! I love how the cupholders can fold in making it easier to fit next to our other car seats. I also love the lower anchor belts on this one, way easier to install and uninstall, they work like regular seat belt buckles with the click part. Also I love the name of the color, my son’s name is Silas so it was meant to be! We also have the 3 in 1 snug fit in pink for our newborn and that one is also amazing!

Great fit, easy to install

KayF

2 of these fit well in the back of our Honda Accord with room to spare. That's the main reason we bought them! They're nice too, cupholders are a plus. Nothing fancy which I don't mind!

Amazing

NV96

I absolutely love this car seat! I got it three years ago for my first and definitely had to order another when my second was born. The seat literally grows with them so you save money in the long run.

Better for forward facing.

Sean123

Solid car seat and easy to use, for rear facing little ones legs to rest against the back of the seat.

Highly recommend for First Time Moms

Rocky1130

Great car seat for multiple little ones. Not bulky and fit wonderfully! Easy to install and take out. Cleaning and adjusting for growing kids is also easy. 5 stars!

The only way to ride

Just Dad

Now this is the how we ride. My boy been riding in style with the slim fit 3 in 1. It’s comfortable for him and I’m glad that we have a seat that will grow with him.

Excellent car seat

Shannynanny

I love the ease of loosening the straps, pads are washable, and buckles hang over the sides to keep out of way. I’m a nanny and purchased the car seat so I always have one on hand. I love that it’s easy to use and safe.

Excited to try

Loretta

One car seat versus multiple purchases. Hoping to fit multiple seats in the back of the SUV

Pink comfort

LaylaG

I like the quality and comfort of the car seat. It was easy to install.

Good seat

B945

Pretty good seat overall. Only using with a 6 month old so we'll see how it works as she grows.

Amazing!

Nia M

This seat is perfect for my daughter. She can ride comfortably in the front facing position. And I’m happy to have it as she grows until she needs the high back booster. Amazing!

Great, affordable car seat

Natalia I

I purchased this car seat as a second seat for trips home to visit family. Assembly was straightforward, the chair is compact, and the seat has excellent safety reviews and ratings. It was very affordable, and I highly recommend it to others.

Love IT!!

Daisy888

The color is amazing. The features are great. Love the reclining and the sitting features. The cup holders are pretty cool.

Great chair

MarcoLima

The SlimFit 3 is the best chair out there. Easy to set up and has all tje great security features to make a trip safe for your baby

Flexible and comfortable

Ariana9

I recently bought two of these car seats as my son already has one and I bought an extra two for my Car seat rental business . These car seats work wonderfully they're very comfortable they're easy to change depending on the age and size of the child they're very easy to install and I like how they are just slightly slimmer than a general model so it's easier to fit them in more cars. It is a great purchase and I would do it again in the future if I need more car seat seats for my business.

Cool stuff

Fun trips

Easy to install and remove. I feel very safe having my grandson in the seat when driving.

Great features and comfort

JW26

We just switched our son to his first big boy car seat and the Greco turn to me is perfect! It was easy to install, the turning feature is so convenient, and our son looks so comfortable and has way more room compared to the infant bucket car seat he was in. Overall, we are very happy with this car seat.

reliable and practical

SofiaK

It is a great combination of comfort, safety and convenience. It gas a slim design that saves space in the car without sacrificing comfort for the child. The seat feels sturdy and well-made, the padding is soft, and the adjustable headrest makes it easy to grow with your child.

Save space, good carseat

nikkyt3

I have 2 of these and I love these. It slim and still give my kids space for seat, not tie on them. It good because my infant can sleep straight without interupe or hot or tight in the carseat.

Comfy, compact

PaigeV

With three kids, I wanted a compact and safe car seat I could trust. My kids love them and they say this is the comfiest seat we have for them compared to grandparents seats

Safe and comfortable

Yinery G

The best investment for my baby's safety! This Graco chair gives me a lot of peace of mind because of its reinforced structure and how robust it feels. The harness system is very easy to adjust and level indicators help you make sure it was perfectly installed. It feels of a higher quality and my son is very protected. Totally recommended!

Really does fit 3x

ellbunns

Installation is so easy on this! Also it really does fit 3 across even in a compact sedan (Nissan Sentra).

Easy to install, perfect for 3 across!

Fish12

Installing this car seat is fast and easy. It has improved padding from previous version that makes a smooth ride for our kids.

Quality Car Seat

Delcal

It's a great budget quality car seat. The adjustments for the bottom strap is more difficult than our other Graco seat but our son is comfortable in both seats.

Great caraeat

Eliza19

This is a great car seat. It’s super snug and good fitting on my toddler. It is narrow just like advertised.

Graco slim fit

Rachel H

Great car seat, light weight but still sturdy and safe!

Wonderful car seat!

TeBe

So easy to install and adjust to our baby. Literally took me 5 minutes from unboxing to the perfect fit!

Great seat, needed help to stablize

NCTM

Great car seat size for my second row bucket seats. It is relatively easy to attach to the seat. However, it is difficult to get the seat stable. It requires a lot of downward pressure to have a stable fit. I am a grandparent and needed help anchoring the seat.

Fantastic product

Anonymous

We bought this car seat originally for our first born and came back to it for our second child. Both fit great in the backseat. They are comfortable and safe for the babies. Easy to install and adjust as needed for best sitting posture/ ergonomics. Highly recommend it for new parents, small or big vehicles.

Slim without sacrifice

Anonymous

Looks sleek but comfortable, definitely slim without sacrificing any safety or comfort. Love!

Great slim fit

Bowie33

We are tall and this helped us all fit in my husbands sedan rear facing!

Pros and Cons

Halfdeadmar

I was so impressed with this seat right out of the box. However it’s not the easiest to tighten and it seems like the head protection is too high but it’s where it has to be for the straps to come right above the shoulder in forward facing. I do love how narrow it is though. Not my favorite but it will do.

Easy to install, comfortable.

Mike Sss

Very easy to install, move around, even travel with. Great that it grows with the kid.

Very satisfied

Bob G

Reasonably priced, excellent quality, slim fit is just what we needed Bob

The Only Car Seat You Need

morganlea26

We absolutely adore the Graco Slimfit 3 in 1 car seat. The recline, padding, fit, and buckle are easy to use. It installs easily and fairly quickly. The weight limits are also great. It is wonderful for growing kids as it can be used for infants, rear facing, forward facing and as a high back booster seat. It work well in all of our vehicles including Honda CR-V, Honda Passport, Honda Pilot, and RAM 1500. It also has other beneficial accessories like cupholders which can fold back in when not in use. You can also fit 3 side by side in most vehicles. This is my go-to car seat for all my children!

A car seat the grows with your child

AbbyH

This car seat had an easy setup and was light enough to maneuver. Our son has been able to grow with the seat. The headrest is able to extend to fit the child’s height. The buckles are easy to work and tighten/loosen when needed.

Little Traveler's Seat

Kyden

My young boy really seems to enjoy it, I also like the way when he falls asleep his head does not go forward, instead it goes towards the side.

Comfortable and versatile

Brianna_bellew

I love how many different options you have with this car seat. It will fit any child for a long time and my child looks so comfortable and relaxed in it!

Perfect Car seat for Grandma

Gaga B

I am a grandma and purchased this car seat to be able to transport my grandchild as needed. It is extremely easy to install and remove from my vehicle. My grandchild seems to be very comfortable in the seat and I have no safety concerns.

Toddler’s head tilted & chin was touching chest!!

PepeNoah

First of all. I LOVED how slim & compact it is & that it is easy to install. Loved the removable cupholders also. HOWEVER, my toddler's head tilted forward when she fell asleep & her neck literally bent down (chin touching chest). I tried adjusting her head and it was so unsafe. I had it for not even a week & returned it to purchase and E2Fit 3-in-1 (which we had one & is a favorite in our book).

Awesome slim fit sests

Anonymous

Bought 3 of the 6 months ago and recently just bought three more for the other car and absolutely love these car seats

Slim indeed

Bobba27

This is our second time purchasing this model, and it continues to work great. Fairly easy to install, comfortable for our child, and we can fit a small adult in between 2 of these carseats in our sedan.

True to claims

Kye R

Bought to fit in my Subaru Crosstrek and they really do fit 3 across. I love that! The detachable cup holders are great, and deep enough to actually hold a cup. They are also lightweight for a car seat, and easy to take in and out of a vehicle. I would definitely purchase again.

Great car seat (though not so great for newborns)

Lilyrose

I bought this 2 years ago for our son. It is a sturdy carseat with a slim profile (which we appreciate in our VW Jetta TDI from 2014). I believe it's in thanks to this seat that we will be able to fit 3 across when our third comes. It's also well padded, and (IMO) way easier to clean and reassemble than our Grao 4Ever DLX slim. I like too that there is mesh on the sides to promote good airflow. Over all, it's a sturdy, well-put-together seat. That being said, be aware that this is not a great newborn seat. Although you can get a good buckle fit, the recline is not ideal in most cars for a newborn.

Kay4x

I regret spending the money on this seat. I’ve used it for three separate kids and all three have severe head slump. 6 year old forward facing, 2 year old forward and rear facing and 9 month old rear facing. Installed correctly with bubble in the correct spot. I put my kids back in chicco seats and they are able to sleep correctly with no head slump. This seat now sits in my closet for a back up seat in case of an accident to hold us over for new ones.

Slim fit!

Phill S

Great product! And excellent customer service! Fits in so many different configurations and three across!

Exactly the Slim, Lightweight Seat We Needed

Hebaish

bought the Graco SlimFit3 LX because I wanted a less bulky car seat, and it completely delivered. At under 17 inches wide, it saves a massive amount of space in the backseat compared to the standard SlimFit, and it was a lifesaver for travel since it’s so light and fully FAA-approved. The only reason I’m giving it 4 stars instead of 5 is that getting a tight rear-facing installation with the seatbelt takes a bit of extra muscle without a built-in lock-off, and the cup holders can be a tight squeeze for wider bottles. Overall, it’s a fantastic choice if you want to trim the fat without losing safety features or comfort.

Great

Mileva

Honestly this car seat is elite, super slim and my toddler loves it and is comfy in it

JUST WHAT I WAS LOOKING FOR!

Anonymous

This slim car seat was for my new great grandson joining his two older sisters in the back seat! It was just what my granddaughter wanted so all three siblings would fit in her vehicle! PERFECT and I saved 20%!

Great!

Momoftwooo

Compact, but comfortable for the little. Easy to install and buckle.

Great Seat

Ahlazah

Absolutely the best car seat I’ve ever had , it’s not bulky its lightweight, easy to install

Reddit Insights

6 threads · r/BabyBumpsCanada, r/beyondthebump, r/CPST, r/CX5, r/Parenting

Reddit users praise the Graco SlimFit3 LX for its narrow width and 3-across capability, but note installation challenges and lower harness height as drawbacks.

mixed sentiment95% match

Sentiment is generally positive for its slim design and value, but tempered by installation difficulties and concerns about longevity for taller children. Overall, users find it a good solution for tight spaces.

Themes

Narrow width and 3-across fitpositive
Installation difficultynegative
Compact front-to-back for rear-facingpositive
Harness height limitations for taller kidsnegative
Comparison to other narrow seats (Clek, Diono)mixed

Use Cases

  • Fitting three car seats across in mid-size vehicles
  • Rear-facing in compact sedans without sacrificing front legroom
  • Families needing a narrow seat for multiple children in tight seating arrangements

Watch Out For

mediumSeatbelt lock-off is only for forward-facing, not rear-facing, making rear-facing seatbelt installs less secure.
highLower-than-average top harness height means kids may outgrow forward-facing harness sooner than expected.
lowCup holders cannot be used in rear-facing mode if width is a concern; they must be removed.
mediumInstallation can be very difficult; many parents reported frustration and needed help from CPSTs.

Community Q&A

Does it fit rear-facing in a small sedan?
Yes, many users report it fits well rear-facing in compact cars like a Honda Civic or Mazda3 without compromising front seat space.
Is it really 16.5 inches wide?
Yes, measurements confirm it is about 16.5-16.7 inches wide without cup holders, making it one of the narrowest seats.
How does it compare to Britax or Diono?
It's narrower and lighter than many competitors, but installation can be trickier and harness height is lower.
Is it easy to install?
Installation is often described as challenging, especially with seatbelt in rear-facing mode; LATCH installs are generally easier.

Compared To

vs Britax Poplar

Users debated between the SlimFit3 LX and Britax Poplar, noting the Graco is narrower and cheaper, but the Britax may be easier to install.

vs Diono Radian

The SlimFit3 LX is considered narrower and easier to install than Diono Radian seats, but some prefer Diono for higher harness limits.

vs Clek Foonf/Fllo

Graco is cheaper and lighter than Clek seats, but Clek offers easier installation and higher quality materials according to some users.

vs Graco TrioGrow

The TrioGrow is easier to install and lasts longer in harnessed mode, but the SlimFit3 LX is narrower.

Source Threads

  • Opinions on Graco SlimFit 3LX in a sedan

    I have this seat and it fits well rear-facing in my Honda Civic. It's narrow and leaves decent room for front passengers.

    r/BabyBumpsCanadaView thread →

  • Convertible carseat opinions: Graco SlimFit LX

    I found the seatbelt install very difficult. The lock-offs are only for forward-facing, so rear-facing with seatbelt is tricky. Might not last as long as other seats due to harness height.

    r/beyondthebumpView thread →

  • Stuck between Britax Poplar or Graco SlimFit3 LX

    I'm torn between the Poplar and the SlimFit3 LX. The Graco is narrower, which I need for 3-across, but I hear the Britax installs easier.

    r/CPSTView thread →

  • Graco SlimFit 3 LX car seat in Mazda CX-5

    We fit three across in our CX-5 using SlimFit3 LX seats. It's tight but works. The seat is very narrow (16.5 in) and lightweight.

    r/CX5View thread →

  • What's the scoop on these three Graco car seat models?

    If you don't need the ultra slim width, the TrioGrow is easier to install and lasts longer harnessed. The SlimFit3 LX is great for tight spaces but has a lower harness height.

    r/ParentingView thread →

  • Help choosing between Graco SlimFit 3 LX and Diono

    I've tried both. The SlimFit3 LX is narrower than the Diono Radian and easier to install. But Diono has a higher harness slot. For pure width, Graco wins.

    r/CPSTView thread →