Cybex Sirona G3 i-Size Plus Car Seat - Chocolate Brown

Age 3 months to 4 years
Height 61 to 105 cm
Child weight Up to 20 kg
Installation ISOFIX

299,95€

In stockImmediate dispatch

Colour: Chocolate Brown (5)

Immediate delivery By order

Ref: 526001329

The Cybex Sirona G3 i-Size Plus is a 360° rotating car seat that keeps your child rear-facing up to 4 years, with linear side impact protection and several recline positions. It installs on an Isofix base, sold separately.

Good to know

  • Isofix base not included (sold separately here)
  • From 3 months to 4 years
  • 360º rotation
  • Direction of travel: rear-facing and forward-facing
  • Isofix installation – base sold separately
  • 20 kg
  • 61-105 cm baby height
  • Approval: R-129 (i-Size)
  • 5-point harness
  • Cannot be installed with belts

Goes well with

  • Cybex Sirona Gi Forra de Verão - Grey

    (0)

    59,95€

  • Cybex G3 i-Size Isofix Base

    (0)

    229,95€

  • Cybex SensorSafe Toddler Kit

    (0)

    59,95€

Why you should buy the Cybex Sirona G3 i-Size

The Sirona G3 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 discerning parents.

In this description, we explore all the features, advantages, and specifications of the Cybex Sirona G3 i-Size car seat, focusing on important details.

Review of the Cybex Sirona G3 i-Size at Bonabebe

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

ADAC Awards and International Recognition

The Sirona G3 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 evaluations from Stiftung Warentest — two of the most stringent European child safety testing organizations.

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

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

Advanced Safety in the Cybex Sirona G3 i-Size Car Seat

Rear-facing up to 19 kg

The rear-facing position is fundamental to reducing 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 reduction in risk in frontal impact
  • Ideal up to around 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.)

Integrated Linear Side-impact Protection (L.S.P.) offers an additional layer of safety in the event of a side impact.

  • Effective absorption of impact energy
  • Protection for head, shoulders, and torso
  • Reinforced structure with progressive absorption

An essential element to enhance side protection and minimize risks.

Isofix Base Sold Separately with 360º Rotation

The 360° rotation feature completely transforms the user experience.

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

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

Ventilation for Maximum Comfort

Ventilation ensures excellent air circulation within the car seat.

  • Integrated air channel system
  • Reduction of accumulated heat
  • Thermal comfort in all seasons

Plus Version:

  • Breathable mesh fabric
  • Up to 6x more ventilation
  • Ideal for hot climates

Perfect for keeping your baby comfortable even on long journeys.

Adaptable Growth and Ergonomics

The Cybex Sirona G3 i-Size accompanies the child's growth from the first months up to around 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 G3 i-Size 

https://www.youtube.com/watch?v=TlmvZDTbh04

Technical specifications

Details
Model Cybex Sirona G3 i-Size
Safety Standard UN R129/04 (i-Size)
Child Height 61 – 105 cm
Maximum Weight Up to 19 kg
Recommended Age From 3 months up to approx. 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 G3 i-Size

Why order the Cybex Car Seat Sirona G3 i-Size from Bonabebe ❤

  • With us, you will receive specialized human support before, during, and after purchase
  • Child road safety techniques
  • Safest products on the European market for babies
  • Babywearing consultants
  • Local business
  • Women-owned
  • LGBTQ+ friendly
Approvali-Size (UN R129)
Installation directionrear-facing up to 4 years
Maximum weightup to 20 kg
Rotation360°
Headrestheight adjustable
Reclineseveral positions
Ventilationexcellent ventilation system
ISOFIX basenot included (sold separately)

299,95€

Highlights and features of Cybex Sirona G3 i-Size Plus Car Seat - Chocolate Brown

Cybex Cadeira Auto Sirona G3 i-Size Plus - Almond Beige

360° rotation

It rotates 360° so you can put your child in and take them out effortlessly and easily switch between rear-facing and forward-facing.

Cybex Cadeira Auto Sirona G3 i-Size Plus - Almond Beige

Linear side impact protection

Linear side-impact protection system that reinforces your child's safety in the event of a side collision.

Cybex Cadeira Auto Sirona G3 i-Size Plus - Almond Beige

Adjustable headrest

The headrest adjusts in height to grow with your child and always keep the ideal position.

Cybex Cadeira Auto Sirona G3 i-Size Plus - Almond Beige

Several recline positions

It offers several recline positions to ensure the child's comfort, whether awake or asleep.

Cybex Cadeira Auto Sirona G3 i-Size Plus - Almond Beige

Excellent ventilation

Ventilation system that keeps your child cool and comfortable, even on the longest journeys.

Cybex Cadeira Auto Sirona G3 i-Size Plus - Almond Beige

Easier getting in and out

The harness fastens out of the way to make it easier to put your child in and take them out of the seat.