Cybex Sirona S Convertible Seat vs. Cybex Callisto G 360 All-In-One Seat

Shopping for a car seat in Canada can feel overwhelming with so many high-quality options available. The Cybex Sirona S is a convertible seat designed to grow with your child from infant to toddler, while the Cybex Callisto G 360 is an all-in-one seat that can accommodate babies through booster stage. Both feature 360° rotation, advanced safety systems, and adjustable comfort settings, but each brings its own strengths.

Choosing the right car seat isn’t just about picking a popular model; you’ll want to consider your child’s age and size, vehicle space, ease of use, and long-term comfort. In this guide, we’ll compare the Cybex Sirona S vs. Callisto G 360 in detail, covering specifications, safety, comfort, and usability, helping Canadian parents find the perfect fit for their family!

TL;DR

The Cybex Sirona S is a convertible car seat for infants and toddlers (4–65 lbs), compact and safety-focused. The Callisto G 360 is an all-in-one car seat that grows with your child from infant to booster (4–120 lbs), offering extra comfort, one-hand adjustments, and long-term use. Both rotate 360° and include SensorSafe alerts, making them top Canadian choices. 

Quick Comparison: Sirona S vs. Callisto G 360 Specs

Both of these Cybex convertible car seats are designed to accommodate infants from birth through toddlerhood. The rotation and adjustable design mean you won’t have to awkwardly lift your baby in and out of the seat, which is especially helpful for new parents managing winter coats, blankets, or cold Canadian weather.

Key Differences

Safety Features

Rotation & Maneuverability

Comfort & Design

Size & Weight Considerations

Shared Superpowers

Despite their differences, both the Cybex Sirona S and Callisto G 360 have standout features that parents love:

• SensorSafe Technology: Real-time alerts for belt buckling, temperature, and travel time.
• 360° Rotation: Easy rear- and forward-facing transitions without lifting your baby.
• Adjustable Recline & Harness: Grows with your child and provides maximum comfort.
• Rear- and Forward-Facing Options: Safe for infants from birth through toddlerhood.

Deep Dive: Feature by Feature

Safety

Cybex Sirona S: L.S.P. system, reinforced frame, energy-absorbing shell, and SensorSafe chest clip alerts. It’s a solid choice for parents who prioritize structured side-impact protection.

Cybex Callisto G 360: Enhanced side-impact protection with a taller, adjustable headrest and padded shell. Also includes SensorSafe technology.

Verdict: Both car seats are excellent safety options, but the Callisto G 360 provides a bit more head and shoulder protection for longer rides.

Comfort & Design

Cybex Sirona S: Multiple recline options, ergonomic padding, and a modern, sleek design. Perfect for everyday use in Canadian climates.

Cybex Callisto G 360: Slightly wider seat and extra padding for shoulders and head. Ideal for children who need more space or for families living in colder regions where extra layers are required.

Verdict: Callisto G 360 wins slightly in comfort for longer drives or winter layering.

Ease of Use & Installation

Cybex Sirona S: Easy 360° rotation simplifies rear- and forward-facing transitions. Adjustable recline is straightforward but requires two hands for some parents.

Cybex Callisto G 360: One-hand adjustment for recline and headrest makes installation and daily use faster and easier.

Verdict: Callisto G 360 is slightly more user-friendly for busy parents.

Pros and Considerations

Cybex Sirona S

Pros:

• SensorSafe alerts for added safety
• Smooth 360° rotation for easy access
• Strong side-impact protection (L.S.P. System)

Considerations:

• Fewer one-hand adjustment features

Cybex Callisto G 360

Pros:

• Extra comfort with wider seat and padding
• One-hand adjustments make installation quick
• Advanced side-impact protection

Considerations:

• Slightly larger footprint in compact cars
• Higher price point

Which One Is Right for You?

Choose Cybex Sirona S if you:

• Want a safe, structured car seat with reliable side-impact protection
• Have a smaller vehicle or want a more compact seat
• Prefer a sleek, modern design

Choose Cybex Callisto G 360 if you:

• Want extra comfort and padding for longer drives
• Appreciate one-hand installation and adjustments
• Need a car seat that accommodates your child from birth through the booster stage (All-in-One)

Final Thoughts

Both the Cybex Sirona S and Callisto G 360 are top-rated convertible car seats in Canada. There’s no wrong choice — it depends on your family’s lifestyle and priorities.

• Choose Sirona S if you value structured safety features and a compact, sleek design.
• Choose Callisto G 360 if comfort, easy adjustments, and extra padding are your top priorities.

Either way, you’ll have a car seat that keeps your child safe, comfortable, and happy during every Canadian drive.

FAQs

Can I use the Sirona S from birth?

Yes, it is suitable for newborns from 4 lbs in rear-facing mode.

Are these car seats easy to rotate for quick exits?

Yes, both models rotate 360°, making transfers from rear- to forward-facing simple, which is ideal for busy Canadian parents.

Can the Cybex Sirona S or Callisto G 360 be used in smaller cars?

Yes, both car seats fit most Canadian vehicles, but the Sirona S is slightly more compact, making it easier to install in smaller sedans or hatchbacks.

How long can I use the Cybex Sirona S rear-facing?

The Sirona S can safely be used rear-facing from 4–50 lbs, which is ideal for infants and toddlers up to approximately 4 years old.

Does the Callisto G 360 grow with my child?

Yes, the Callisto G 360 is adjustable from 4–120 lbs and includes a one-hand adjustable headrest and harness system to accommodate your child as they grow.

Are these Cybex car seats easy to clean?

Yes, both car seats have removable and machine-washable covers, perfect for dealing with spills, crumbs, and winter gear messes.