CYBEX Sirona S i-Size Car Seat

CYBEX Sirona S i-Size Car Seat now available at Bella Baby.

Rear-facing safety, comfort and easy 360° rotation - from approximately 3 months to 4.5 years.

Keep your little one safe and comfortable with the CYBEX Sirona S i-Size, an advanced rotating car seat designed for extended rear-facing travel. Suitable from approximately 3 months to 4.5 years (61-105 cm, max. 20 kg), the Sirona S i-Size combines rear-facing protection, a 360° rotating mechanism and adjustable features that grow with your child. With the optional Newborn Inlay and Insert, the Sirona S can also be used from birth for babies measuring 40-60 cm.

Key Features

• Rear-Facing Travel Up to 4.5 Years

The Sirona S is designed to keep your child rear-facing for longer, providing a protective seating position throughout the early years.

• CYBEX states that the Sirona S can provide up to 50% better protection in a frontal impact when used rear-facing compared with the same seat in a forward-facing position, based on internal testing.
• 360° Rotation

The convenient one-handed 360° rotation makes getting your child in and out of the car much easier.

• Simply rotate the seat towards the car door for easier boarding and unloading, helping reduce strain on parents.
• Grows With Your Child

The CYBEX GrowTech system allows the Sirona S to adapt as your child grows.

• Adjustable headrest
• Multiple recline positions
• Removable newborn and comfort inlays
• Adjustable design for growing children
• Ergonomic support throughout the different stages
• The Sirona S can be used from 61–105 cm, or from 40–105 cm with the optional newborn accessories.

Use From Birth

For parents looking for a car seat suitable from birth, the Newborn Insert and Newborn Inlay are available as accessories.

For babies measuring 40–60 cm, these accessories provide additional head and body support. As your baby grows, the newborn accessories can be removed. The included Comfort Inlay can then be used until your child reaches approximately 85 cm.

Advanced Side-Impact Protection

The Linear Side-impact Protection (L.S.P.) system forms part of the Sirona S's multi-layered safety design.

CYBEX states that the L.S.P. system can reduce side-impact forces by up to 25%, based on internal testing compared with the same seat without L.S.P.

The L.S.P. can be extended during installation and folded away when additional space is needed.

Magnetic Belt Holders

Clever magnetic belt holders keep the harness buckles neatly to the sides of the seat while you place your child in or take them out.

This makes everyday boarding quicker and easier.

Comfortable Recline

The Sirona S provides adjustable recline positions in both rear-facing and forward-facing modes, allowing you to find a comfortable position as your child grows.

Its ergonomic design is AGR-certified and provides generous space for your child's legs.

Excellent Ventilation

All-round ventilation helps keep your child comfortable throughout the year.

Selected Style versions feature 3D mesh fabrics, designed to improve airflow and moisture management for a cooler, more comfortable journey.

XXL UPF50+ Sun Canopy

The integrated XXL sun canopy provides UPF50+ sun protection to help shield your child from sunlight and glare.

A breathable mesh window helps improve airflow, while the canopy can be removed when required.

UPF50+ protection excludes mesh sections.

Premium Style Design

The Style version features sophisticated two-tone, leather-look detailing combined with breathable mesh fabrics for a premium finish.

Safety & Comfort From Birth to 4.5 Years

The Sirona S is designed to adapt through your child's early years, offering a combination of:

• Extended rear-facing travel
• 360° rotation
• Adjustable headrest
• Adjustable recline
• Newborn accessories
• Comfort inlay
• Side-impact protection
• Magnetic harness holders
• Excellent ventilation
• AGR-certified ergonomic design

Why Choose the CYBEX Sirona S i-Size?

• Rear-facing travel up to approximately 4.5 years
• 360° one-handed rotation
• Suitable from approximately 3 months
• Can be used from birth with optional newborn accessories
• 61–105 cm / max. 20 kg
• Advanced Linear Side-impact Protection
• CYBEX GrowTech adjustable design
• Magnetic harness holders
• Multiple recline positions
• AGR-certified ergonomic design
• XXL UPF50+ sun canopy
• Excellent ventilation
• Premium Platinum design options

Specifications

• Safety Standard: UN R129/04
• Child Height: 61–105 cm
• With Newborn Inlay: 40–60 cm
• Maximum Child Weight: 20 kg
• Age Range: Approx. 3 months to 4.5 years
• From Birth: With optional newborn accessories
• Rotation: 360°
• Product Weight: 7.3 kg
• Dimensions: L 56 × W 45 × H 55 cm
• Installation: ISOFIX / Base S system
• Direction: Rear-facing and forward-facing

Please Note

The Sirona S i-Size is suitable from approximately 3 months to 4.5 years (61–105 cm). For use from birth, the CYBEX Newborn Insert and Newborn Inlay are required and are available separately. Always follow the manufacturer's instructions regarding installation, child height, weight and use of the car seat.