In-Depth Review of the Graco SlimFit3 LX 3-in-1 (2023)

Slim, Versatile 3-in-1 Car Seat for Growing Families

Last Updated on 2023-10-13

This comprehensive review will provide an in-depth look at the Graco SlimFit3 LX 3-in-1. We'll analyze the key features, real owner experiences, who this seat is ideal for, and technical specifications to help you determine if this is the right car seat for your family.

Current Price Seller
In stock
$251.99 Shop


The price point is moderate considering its 3-in-1 capability and longevity from infant to booster stage.


With its steel-reinforced frame and ProtectPlus engineering, it exceeds standard safety expectations.


The car seat includes a no-rethread harness, multiple recline positions, and dual cup holders, adding convenience.


The installation process is standard, with no specific enhancements that simplify it significantly.


The Rapid Remove cover is machine-washable, facilitating easy cleanup.


The slim profile is ideal for fitting three across in the backseat, a rare attribute in car seats.

Key Information

Type Convertible

Rear-Facing Forward-Facing High Back Booster
Weighted Rating 4.90 / 5.0

Product Overview

The Graco SlimFit3 LX 3-in-1 Car Seat

The Graco SlimFit3 LX 3-in-1 is a multifaceted car seat designed to accommodate growing children, from a rear-facing harness suitable for 5-40 lbs, transitioning to a forward-facing harness for 22-65 lbs, and finally converting to a high-back booster for 40-100 lbs. It is crafted to provide a combination of safety and comfort while addressing the challenge of fitting multiple car seats in smaller vehicles.

This car seat emphasizes a narrow design at 16.7” width, intended to maximize space in the backseat, allowing room for up to three seats. With a robust steel-reinforced frame and energy-absorbing EPS foam, it also incorporates Graco's ProtectPlus engineering, which is tested for frontal, side, rear, and rollover crashes, providing comprehensive safety.

Key Features

What features set this car seat apart from others?

  • Slim 16.7” width that enables three-across seating in many vehicles.
  • No-rethread harness with 10-position headrest for easy adjustments.
  • Graco's ProtectPlus engineering offers rigorous safety testing.
  • Machine-washable Rapid Remove cover for quick cleaning.

What Real Owners Think

Here's what actual owners of the Graco SlimFit3 LX 3-in-1 had to say based on hundreds to thousands of reviews we've analyzed from Walmart, Target, and Amazon.

Pros Cons
  • The car seat is slim and compact, allowing it to fit well in small backseats and leaving room for other passengers.
  • It is easy to install and adjust.
  • The fabric is soft, removable, and machine washable.
  • It has convenient features like cup holders and an adjustable headrest.
  • It seems durable, well-made and good quality.
  • The straps can be difficult to adjust properly.
  • The installation instructions are unclear.
  • It may not provide enough support for newborns/infants.
  • The seat angle is hard to get right according to the built-in level.
  • The seat takes up a lot of room when rear-facing.

Who Should Buy the Graco SlimFit3 LX 3-in-1?

The SlimFit3 LX suits families needing a durable car seat to last from infant through booster stages. The slim design allows fitting 3 seats in tight backseats, especially helpful for growing families. Additionally, parents who value longevity and adaptability in a product will find the 3-in-1 feature appealing as it eliminates the need to purchase multiple seats as the child grows.

Final Verdict

The Graco SlimFit3 LX makes an excellent versatile choice for safety-focused parents needing to maximize backseat space. While a few drawbacks exist like difficult installs and limited infant support, the seat’s adaptability, machine-washable fabric, and protective engineering provide long-lasting value. For families needing an everyday car seat to grow with their child, the SlimFit3 LX warrants strong consideration.


Allowable Height and Weight Ranges

Height Range Weight Range
Rear-facing 5 - 40 pounds
Forward-facing 0 - 49 inches 22 - 65 pounds
Booster 43 - 57 inches 40 - 100 pounds

Dimensions and Weight

Width 19.9 inches
Height 25.5 inches
Depth 21.5 inches
Weight 21.5 pounds

Core Specifications

Model Year 2022
Made In China
Frame Material Reinforced Steel

Safety and Compliance

Federal Safety Standards Meets all standards
Configurations FAA-Approved for Airplanes Forward-Facing
High Back Booster


Attachment Methods LATCH
Harness Type 5-Point
Cup Holders Has cup holders.

Warranty and Durability

Manufacturers Warranty Length 1 year
Lifespan 10 Years

Additional Links

See all Graco car seats
See all Convertible car seats

Current Price Seller
In stock
$251.99 Shop