Hi there! We're here to help you decide between the CYBEX Sirona S and the Nuna Revv.
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 | Nuna Revv | |
Type |
Convertible Rear-Facing Forward-Facing |
Convertible Rear-Facing Forward-Facing |
Current price |
Currently unavailable
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Currently unavailable
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Rating | 4.03 | 4.71 |
Our Thoughts
When it comes to choosing a car seat for your little one, safety and ease of use are key considerations. The Cybex Sirona S and the Nuna Revv are two top-tier options that have some impressive features to offer.
The Cybex Sirona S is renowned for its integrated SensorSafe technology and enhanced side-impact protection, providing top-tier safety for children. Adding to its advanced features, the seat is equipped with a unique 360° swivel mechanism which makes placing the child in the car much easier. Parents will appreciate the adjustable recline options and ease of adjusting straps, which simplifies the process of buckling in and ensuring a comfortable journey. However, the installation of this car seat has proven to be a challenge for some, requiring a certain level of patience as it's noted to be complex and time-consuming.
The Nuna Revv, on the other hand, comes with similar advantages such as the 360-degree swiveling feature that greatly simplifies rear-facing installation and child loading. The robust build combining resilient plastics with an all-steel frame indicates a dedication to safety. Its ease of use is complemented by upscale, comfortable fabric covers that are likely easy to maintain. While the Revv shares an installation difficulty with the Sirona S, a unique issue to note is that its depth can be substantial in smaller cars, limiting how much the front seats can recline.
Comparing the weight specifications, the Cybex Sirona S has a higher forward-facing maximum weight allowance (65 lbs) compared to the Nuna Revv's 40 lbs, allowing a longer duration of use before your child outgrows it. On the other hand, the Sirona S is not FAA approved for air travel, whereas this information is not specified for the Nuna Revv.
Both the Cybex Sirona S and Nuna Revv are great options, however, if the safety of your child is your paramount concern and you are willing to work through a potentially complex setup, then the Sirona S with its SensorSafe technology and higher forward-facing weight allowance would be the better choice. This car seat offers more durability and grows with your child, offering a reliable and innovative car seat solution.
However, if ease of installation and comfort are your main priorities, along with a sleek and stylish design, then the Nuna Revv would be an excellent choice, if you do not mind its higher price and lower weight limits. This car seat especially stands out for its rotating base function, simplifying access to your child, and making each journey a bit easier on the parents as well.
Key Details
Sirona S | Revv | |
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Brand | CYBEX | Nuna |
Type |
Convertible Rear-Facing Forward-Facing |
Convertible Rear-Facing Forward-Facing |
Weighted Rating | 4.03 | 4.71 |
1 yr Price Range | $439.96 - $549.95 | $650 - $650 |
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 on the higher end, but the unique features and long lifespan justify the cost. |
Safety |
![]() Integrated with SensorSafe technology and enhanced side-impact protection, providing top-tier safety for children. |
![]() Combines resilient plastics with an all-steel frame, indicating a robust build for enhanced safety. |
Features |
![]() The 360° swivel design, magnetic buckle holders, and adjustable recline options set it apart from standard car seats. |
![]() The 360° swiveling feature is a significant innovation that sets this seat apart. |
Installation |
![]() Installation can be challenging, with some parents finding it complex and time-consuming. |
![]() Some users find the installation challenging, which could vary with car models. |
Cleaning |
![]() The seat cover is removable and machine washable, simplifying the cleaning process. |
![]() Premium soft fabric and a design that likely considers ease of maintenance. |
Size |
![]() While it’s not the most compact, its design accommodates growing children, balancing size with comfort and safety. |
![]() While it has a smaller footprint, the depth may be cumbersome in smaller vehicles. |
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 Nuna Revv. 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 | Nuna Revv | |
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Height Range | 17 - 49 inches | 0 - 43 inches |
Weight Range | 4 - 50 pounds | 5 - 40 pounds |
Forward-facing
CYBEX Sirona S | Nuna Revv | |
---|---|---|
Height Range | 28 - 49 inches | 0 - 43 inches |
Weight Range | 22 - 65 pounds | 25 - 40 pounds |
Booster
Neither car seat has a Booster configuration.
Dimensions and Weight
CYBEX Sirona S | Nuna Revv | |
---|---|---|
Width | 20.0 inches | 18.5 inches |
Height | 25.5 inches | 29.5 inches |
Depth | 25.3 inches | 34.0 inches |
Weight | 30.4 pounds | 29.7 pounds |
Core Specifications
CYBEX Sirona S | Nuna Revv | |
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Model Year | 2021 | 2021 |
Made In | China | China |
Frame Material | Reinforced Steel | Reinforced Steel |
Safety and Compliance
CYBEX Sirona S | Nuna Revv | |||||||||||||||||||||
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Federal Safety Standards | Meets all standards | Meets all standards | ||||||||||||||||||||
Configurations FAA-Approved for Airplanes |
Rear-Facing Forward-Facing |
Rear-Facing Forward-Facing |
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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 | Nuna Revv | |
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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 | Nuna Revv | |
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Manufacturers Warranty Length | 2 years | 2 years |
Lifespan | 10 Years | 10 Years |
Additional Links
See all CYBEX car seats | See all Nuna car seats |
Full review of the CYBEX Sirona S Full review of the Nuna Revv |