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 | |
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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 | |
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Height Range | 17 - 49 inches | |
Weight Range | 4 - 50 pounds | 5 - 40 pounds |
Forward-facing
CYBEX Sirona S | Graco SlimFit3 LX 3-in-1 | |
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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 | |
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Height Range | 43 - 57 inches | |
Weight Range | 40 - 100 pounds |
Dimensions and Weight
CYBEX Sirona S | Graco SlimFit3 LX 3-in-1 | |
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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 | |
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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 | |||||||||||||||||||||
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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 |
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NHTSA Ease-of-Use Ratings |
Rear-Facing Mode
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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 | |
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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 | |
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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 |