Cybex Sirona G i-Size Plus - Almond Beige

Rotation 360°
Maximum weight (rear-facing use) Up to 19 kg
Child's height 61–105 cm
More ventilation (Plus version) Up to 6x
299,95€ 254,96€

Price in the last 30 days: 299,95€

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Colour: Almond Beige (5)

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The Cybex Sirona G i-Size Plus is a premium car seat from the Cybex Gold range, with 360° rotation, advanced side impact protection and compliance with the i-Size (UN R129) regulation. Designed to grow with your child from the first months to around 4 years, with maximum safety, comfort and practicality.

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Why you should buy the Cybex Sirona G i-Size Plus Moon Black

The Sirona G i-Size is a state-of-the-art car seat from the Cybex Gold range, designed to offer maximum car safety, comfort, and everyday practicality. With 360° rotation, an advanced side protection system, and compliance with the i-Size (UN R129) standard, this car seat stands out as a premium choice for demanding parents.

In this description, we explore all the features, advantages, and specifications of the Cybex Sirona G i-Size car seat, focusing on important details.

Cybex Sirona G i-Size Review at Bonabebe

https://www.youtube.com/watch?v=NodhuWu-xIA

ADAC Awards and International Recognition

The Sirona G i-Size is part of the renowned Cybex Gold line, synonymous with German quality (engineered in Germany) and constant innovation. This model has been distinguished with ADAC awards and positive ratings from Stiftung Warentest — two of the most rigorous European organizations in child safety testing.

✔ Tests based on demanding criteria (including ADAC 2022)
✔ High levels of protection in frontal and side impact
✔ Up to 50% safer in the rear-facing position

These recognitions reinforce confidence in this car seat as a top solution in child road safety.

Advanced Safety in the Cybex Sirona G i-Size Car Seat Rear-facing up to 19 kg

The rear-facing position is essential to reduce the forces exerted on the child's neck in the event of a frontal collision.

  • Mandatory up to 15 months (76 cm)
  • Extended use up to 19 kg
  • Significant risk reduction in frontal impact
  • Ideal up to approximately 4 years old

This configuration keeps the child protected during one of the most critical developmental stages, being 5 times safer.

Linear Side-impact Protection (L.S.P.)

The integrated Linear Side-impact Protection (L.S.P.) offers an additional layer of safety in case of a side impact.

  • Effective absorption of impact energy
  • Head, shoulder, and torso protection
  • Reinforced structure with progressive absorption

An essential element to reinforce side protection and minimize risks.

Isofix Base Sold Separately with 360° Rotation

The 360° rotation functionality completely transforms the user experience.

  • Allows turning the seat towards the door
  • Facilitates child entry and exit
  • Reduces strain on parents' backs
  • Simple alternation between positions
  • Isofix base not included
  • Base sold separately here

The rotational car seat is ideal for daily use, making every trip quicker and more comfortable.

Ventilation for Maximum Comfort

Ventilation ensures excellent air circulation inside the car seat.

  • Integrated air channel system
  • Reduced heat build-up
  • Thermal comfort in all seasons
Plus Version:
  • Breathable mesh fabric
  • Up to 6x more ventilation
  • Ideal for warm climates

Perfect for keeping the baby comfortable even on long journeys.

Adaptable Growth and Ergonomics

The Cybex Sirona G i-Size accompanies the child's growth from the first months up to approximately 4 years old.

  • Adjustable headrest
  • Multiple recline positions
  • Newborn insert (optional, sold separately)
  • Continuous ergonomic adjustment

A car seat designed to evolve with your child.

How to use the Cybex Sirona G i-Size Moon Black

https://www.youtube.com/watch?v=IWfHJRSBsiA

Technical Specifications Details Model Cybex Sirona G i-Size Safety Standard UN R129/03 (i-Size) Child Height 61 – 105 cm Maximum Weight Up to 19 kg Recommended Age From 3 months up to approximately 4 years Travel Position Rear-facing (up to 19 kg) and forward-facing (min. 15 months) Rotation System 360° rotation Installation ISOFIX - base not included Safety System Linear Side-impact Protection (L.S.P.) Recline Multiple adjustable positions Headrest Height adjustable Ventilation All-round ventilation (Plus version with breathable fabric) Compatibility Compatible with most ISOFIX vehicles Compatible Accessories Newborn insert, summer cover, SensorSafe, cup holder Frequently Asked Questions Cybex Car Seat Sirona G i-Size Moon Black



Does the car seat include an Isofix base?


No, this car seat does not include an Isofix base. It must be purchased separately here .




What is the recommended age for the Sirona G i-Size?


From 3 months up to approximately 4 years (61 to 105 cm, up to 19 kg).




Can the car seat be used forward-facing?


Yes, but only after 15 months and 76 cm. The rear-facing position is always safer.




How does the 360° rotation work?


The Isofix Base G (sold separately) allows the seat to rotate completely to facilitate access to the child and switch between positions.




Does the ventilation really make a difference?


Yes. The all-round ventilation significantly improves thermal comfort, especially in the Plus version.




Does the car seat have good safety ratings?


Yes. It received ADAC awards and complies with the i-Size UN R129 standard, ensuring high safety standards.

Why order the Cybex Car Seat Sirona G i-Size Moon Black from Bonabebe ❤

  • With us, you will have specialized human support before, during, and after your purchase
  • Child road safety techniques
  • Safest products on the European market for babies
  • Babywearing consultants
  • Local business
  • Woman-owned
  • LGBTQ+ friendly
Safety standardUN R129/03 (i-Size)
Child height61–105 cm
Maximum weightUp to 19 kg
Recommended ageFrom 3 months to approximately 4 years
Travel positionRear-facing (up to 19 kg) and forward-facing (min. 15 months)
Rotation system360° rotation
InstallationISOFIX (base not included)
Safety systemLinear Side-impact Protection (L.S.P.)
ReclineMultiple adjustable positions
HeadrestHeight-adjustable
VentilationAll-round (Plus version with breathable fabric)
CompatibilityCompatible with most ISOFIX vehicles
299,95€ 254,96€

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Highlights and features of Cybex Sirona G i-Size Plus - Almond Beige

Cybex Cadeira Auto Sirona G3 i-Size - Almond Beige

360° rotation

The 360° rotation function lets you turn the seat towards the door, making it easier for your child to get in and out. It reduces strain on parents' backs and makes switching between positions simple. The Isofix base that enables rotation is sold separately.

Cybex Cadeira Auto Sirona G3 i-Size - Almond Beige

Rear-facing up to 19 kg

The rear-facing position reduces the forces on a child's neck in the event of a frontal collision. It's mandatory up to 15 months (76 cm) and can be kept up to 19 kg, around 4 years old. In this configuration the child is 5 times safer.

Cybex Cadeira Auto Sirona G3 i-Size - Almond Beige

Linear Side-impact Protection (L.S.P.)

The built-in Linear Protection offers an extra layer of safety in the event of a side impact. It effectively absorbs impact energy and protects the head, shoulders and torso. The reinforced structure ensures progressive absorption.

Cybex Cadeira Auto Sirona G3 i-Size - Almond Beige

Ventilation for maximum comfort

The built-in air channel system ensures excellent airflow inside the car seat, reducing heat build-up in every season. The Plus version has breathable mesh fabric and up to 6x more ventilation, ideal for hot climates.

Cybex Cadeira Auto Sirona G3 i-Size - Almond Beige

Adaptable growth and ergonomics

The Sirona G i-Size grows with your child from the early months to around 4 years. It has a height-adjustable headrest and several recline positions, for continuous ergonomic adjustment. The newborn insert is optional, sold separately.

Why you'll love it

360° rotation
360° rotation
Rear-facing
Rear-facing
Isofix installation
Isofix installation
Use up to 18 kg
Use up to 18 kg
Side impact protection
Side impact protection

See in video

Certifications and approvals

i-Size (UN R129/03)

i-Size approval ensuring high safety standards, with mandatory rear-facing installation up to 15 months and protection for the head, neck and spine.

ADAC

Recognised with ADAC awards, one of the most rigorous European bodies for child safety testing (including 2022 ADAC criteria).

Stiftung Warentest

It received positive ratings from Stiftung Warentest, another leading European safety testing body.

Frequently asked questions about Cybex Sirona G i-Size Plus - Almond Beige

Does the seat include the Isofix base?

No, this seat does not include the ISOFIX base. The base must be purchased separately.

What's the recommended age for the Sirona G i-Size?

From 3 months up to around 4 years (61 to 105 cm, up to 19 kg).

Can the seat be used facing forward?

Yes, but only after 15 months and 76 cm. The rear-facing position is always safer.

How does the 360° rotation work?

The G Isofix Base (sold separately) lets you rotate the seat fully, making it easier to access your child and switch between positions.

Does the ventilation really make a difference?

Yes. All-round ventilation significantly improves thermal comfort, especially in the Plus version.

Does the seat have good safety ratings?

Yes. It has received ADAC awards and complies with the i-Size UN R129 regulation, ensuring high safety standards.