CYBEX Sirona S vs. Graco Nautilus 65 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 Nautilus 65 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 Nautilus 65 3-in-1
Type Convertible

Rear-Facing Forward-Facing
Convertible

Forward-Facing High Back Booster Backless Booster
Current price
In stock
$319.00
Currently unavailable
-
Rating 4.03 4.69

Our Thoughts

The Cybex Sirona S and the Graco Nautilus 65 epitomize the versatility and safety that parents look for in car seats. However, specific differences could guide your decision depending on your family's particular needs.

The Cybex Sirona S supersedes in terms of innovation. Its 360° swivel function and SensorSafe Technology set it apart, providing top-tier safety measures and a unique level of convenience for parents. The SensorSafe feature tap into the power of your smartphone, alerting about any unsafe situation. This coupled with enhanced side-impact protection, and a load-bearing leg for increased stability, makes Sirona S a front-runner when prioritizing safety. However, it's worth noting that some found the swivel function somewhat difficult to use and the installation process somewhat complicated.

On the other hand, the Graco Nautilus 65 offers cost-effectiveness and longevity. This 3-in-1 car seat grows hand in hand with your child, transitioning from a forward-facing harness seat to a high back and then backless booster seat. Its no-rethread harness system simplifies height adjustments without the need for uninstalling the seat. Even though some parents reported challenges with installation and buckle adjustability, its simple design can be an advantage for those seeking simplicity and straightforward use.

In terms of comfort, both seats possess adjustable headrests and recline options. The Cybex Sirona S provides luxury comfort with quality padding, while the Graco Nautilus 65 is praised for its comfort during long trips.

When comparing the weight specifications, the Cybex Sirona S stands out with a maximum forward-facing weight of 65 lbs and a rear-facing weight of 50 lbs. The Graco Nautilus 65, on the other hand, seamlessly transitions from forward-facing to booster seat mode accommodating kids up to 100 lbs.

If you're a frequent flyer, only the Graco Nautilus 65 gets a green flag from FAA in its forward-facing mode. The Cybex Sirona S is not approved for flights in neither of its modes.

Given these details, the Cybex Sirona S would be best for parents who place a premium on innovative safety features and convenience, particularly those who find the swivel feature beneficial. However, if longevity, simplicity, and a budget-friendly option top your list, the Graco Nautilus 65 would be your best bet, particularly if you foresee plenty of air travel in the future. Both of these seats promise safety and adaptability for growing children, making them quality selections for any family.

Key Details

Sirona S Nautilus 65 3-in-1
CYBEX Sirona S Graco Nautilus 65 3-in-1
Brand CYBEX Graco
Type Convertible

Rear-Facing Forward-Facing
Convertible

Forward-Facing High Back Booster Backless Booster
Weighted Rating 4.03 4.69
1 yr Price Range $439.96 - $549.95 $189.99 - $209.99
Current price
In stock
$319.00
Currently unavailable
-
Value

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

Offers long-term usability across different stages of a child's growth, making it a cost-effective choice.

Safety

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

With its 5-point harness system and reinforced frame, it ensures top-notch safety standards.

Features

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

Includes adjustable headrest, multiple recline positions, and an integrated cup holder, enhancing comfort and convenience.

Installation

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

Installation is straightforward, but some parents note it can be tricky to get a tight fit.

Cleaning

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

The seat cover is machine washable, and the design allows for easy access to hard-to-reach spots.

Size

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

While it's not the most compact, its size is reasonable for its multi-stage functionality.

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 Nautilus 65 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 Nautilus 65 3-in-1
Height Range 17 - 49 inches
Weight Range 4 - 50 pounds

Forward-facing

CYBEX Sirona S Graco Nautilus 65 3-in-1
Height Range 28 - 49 inches 27 - 49 inches
Weight Range 22 - 65 pounds 22 - 65 pounds

Booster

CYBEX Sirona S Graco Nautilus 65 3-in-1
Height Range 38 - 57 inches
Weight Range 30 - 65 pounds

Dimensions and Weight

CYBEX Sirona S Graco Nautilus 65 3-in-1
Width 20.0 inches 20.0 inches
Height 25.5 inches 28.0 inches
Depth 25.3 inches 18.0 inches
Weight 30.4 pounds 20.5 pounds

Core Specifications

CYBEX Sirona S Graco Nautilus 65 3-in-1
Model Year 2021 2017
Made In China China
Frame Material Reinforced Steel Reinforced Steel

Safety and Compliance

CYBEX Sirona S Graco Nautilus 65 3-in-1
Federal Safety Standards Meets all standards Meets all standards
Configurations FAA-Approved for Airplanes Rear-Facing
Forward-Facing
Forward-Facing
High Back Booster
Backless 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 Nautilus 65 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 Nautilus 65 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 Nautilus 65 3-in-1