CYBEX Sirona S vs. Graco SlimFit3 LX 3-in-1: Which is Better? (2024)

Compare the two car seats side-by-side

Hi there! We're here to help you decide between the CYBEX Sirona S and the Graco SlimFit3 LX 3-in-1.

Our goal is to provide you with the information you need to feel confident that you're choosing the optimal car seat for your family's needs and budget. Let us know if you have any other questions!

At A Glance

CYBEX Sirona S Graco SlimFit3 LX 3-in-1
Type Convertible

Rear-Facing Forward-Facing
Convertible

Rear-Facing Forward-Facing High Back Booster
Current price
Currently unavailable
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Currently unavailable
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Rating 4.03 4.90

Our Thoughts

When considering a car seat for your beloved child, safety, comfort, and ease of use remain paramount. This comparison focuses on two popular options - the CYBEX Sirona S and the Graco SlimFit3 LX 3-in-1.

The CYBEX Sirona S is an impressively designed convertible car seat, renowned for its innovative features, such as SensorSafe technology and a unique 360° swivel function that makes it easier to get your child in and out of the seat. Its reinforced steel frame and advanced side-impact protection ensures maximum safety, giving you peace of mind on every journey. While its installation has been cited as complex by some parents, its top-tier safety credentials coupled with user-friendly features like magnetic buckle holders, and adjustable recline and headrest options make it a compelling option.

The Graco SlimFit3 LX 3-in-1, on the other hand, stands out for its slim profile and adaptability. It serves as a long-term investment, evolving to meet your growing child's needs from infancy to the booster stage. While this Graco model fits the bill in terms of safety with its steel-reinforced frame and ProtectPlus engineering, it also excels in being mindful of space. Its slim 16.7” width allows for three-across seating in many vehicles, making it ideal for larger families or those with smaller vehicles.

When it comes to specifications, particularly weight limits, the CYBEX Sirona S offers a noteworthy advantage. The maximum weight limit in the rear-facing mode for the CYBEX model is higher at 50 lbs compared to the Graco's 40 lbs, allowing your child to stay in the safer, rear-facing position for longer. However, for forward-facing mode, both car seats accommodate similar weights up to 65 lbs. The CYBEX Sirona S does not have a booster mode, but the Graco SlimFit3 LX 3-in-1 expands its longevity with a high back booster mode for children between 40-100 lbs.

In terms of FAA-approved modes for travel, the Graco SlimFit3 LX 3-in-1 scores better with approval for both rear and forward-facing uses, making it a better companion for those who travel frequently by air. Conversely, the CYBEX Sirona S is not FAA approved for either mode.

While both car seats offer significant advantages, your specific needs will determine the best choice. The CYBEX Sirona S is ideal if you value innovative design backed up with high safety standards and don't mind a more complex installation process. On the other hand, the Graco SlimFit3 LX 3-in-1's consistent performance across safety, space efficiency, and adaptability might appeal to those needing a versatile car seat to grow with their child. If budget is a concern and you need to accommodate multiple seats, the Graco model offers a considerable cost-effective solution with excellent functionality.

Key Details

Sirona S SlimFit3 LX 3-in-1
CYBEX Sirona S Graco SlimFit3 LX 3-in-1
Brand CYBEX Graco
Type Convertible

Rear-Facing Forward-Facing
Convertible

Rear-Facing Forward-Facing High Back Booster
Weighted Rating 4.03 4.90
1 yr Price Range $439.96 - $549.95 $195.99 - $279.99
Current price
Currently unavailable
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Currently unavailable
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Value

Offers advanced features and long-term use from infancy to toddler years, making it a cost-effective option despite its higher price point.

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

Safety

Integrated with SensorSafe technology and enhanced side-impact protection, providing top-tier safety for children.

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

Features

The 360° swivel design, magnetic buckle holders, and adjustable recline options set it apart from standard car seats.

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

Installation

Installation can be challenging, with some parents finding it complex and time-consuming.

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

Cleaning

The seat cover is removable and machine washable, simplifying the cleaning process.

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

Size

While it’s not the most compact, its design accommodates growing children, balancing size with comfort and safety.

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

Review Click here Click here

Comparison of Specifications

While features and reviews provide a sense of real-world use, the specs offer quantifiable details on sizing, limitations, and more. Comparing key measurements and ranges side-by-side is crucial for ensuring you choose a seat properly fitted for your child and vehicle.

We've compiled the weight limits, height limits, dimensions, and other vital statistics for the CYBEX Sirona S and the Graco SlimFit3 LX 3-in-1. This data will confirm whether each seat can accommodate your child's current size and projected growth. Specs like seat depth and width are also important for assessing fit with your car's backseat.

Review the following key measurements for both seats. Pay special attention to the height and weight limits to ensure your child falls within the safe ranges.

Height and Weight Limits

Rear-facing

CYBEX Sirona S Graco SlimFit3 LX 3-in-1
Height Range 17 - 49 inches
Weight Range 4 - 50 pounds 5 - 40 pounds

Forward-facing

CYBEX Sirona S Graco SlimFit3 LX 3-in-1
Height Range 28 - 49 inches 0 - 49 inches
Weight Range 22 - 65 pounds 22 - 65 pounds

Booster

CYBEX Sirona S Graco SlimFit3 LX 3-in-1
Height Range 43 - 57 inches
Weight Range 40 - 100 pounds

Dimensions and Weight

CYBEX Sirona S Graco SlimFit3 LX 3-in-1
Width 20.0 inches 19.9 inches
Height 25.5 inches 25.5 inches
Depth 25.3 inches 21.5 inches
Weight 30.4 pounds 21.5 pounds

Core Specifications

CYBEX Sirona S Graco SlimFit3 LX 3-in-1
Model Year 2021 2022
Made In China China
Frame Material Reinforced Steel Reinforced Steel

Safety and Compliance

CYBEX Sirona S Graco SlimFit3 LX 3-in-1
Federal Safety Standards Meets all standards Meets all standards
Configurations FAA-Approved for Airplanes Rear-Facing
Forward-Facing
Forward-Facing
Rear-Facing
High Back Booster
NHTSA Ease-of-Use Ratings Rear-Facing Mode
Overall 5 out of 5 stars
Labels 5 out of 5 stars
Instructions 5 out of 5 stars
Securing 5 out of 5 stars
Installation Features 5 out of 5 stars
Forward-Facing Mode
Overall 4 out of 5 stars
Labels 4 out of 5 stars
Instructions 4 out of 5 stars
Securing 5 out of 5 stars
Installation Features 5 out of 5 stars
Not rated by NHTSA.
Previous Recalls This car seat has never been recalled. This car seat has never been recalled.

Features

CYBEX Sirona S Graco SlimFit3 LX 3-in-1
Attachment Methods LATCH
Seatbelt
LATCH
Seatbelt
Harness Type 5-Point 5-Point
Cup Holders Has cup holders. Has cup holders.

Warranty and Durability

CYBEX Sirona S Graco SlimFit3 LX 3-in-1
Manufacturers Warranty Length 2 years 1 year
Lifespan 10 Years 10 Years

Additional Links

See all CYBEX car seats See all Graco car seats
Full review of the CYBEX Sirona S
Full review of the Graco SlimFit3 LX 3-in-1