Sirona G i-Size
- Age 3 mths - approx. 4 yrs
- Weight max. 19 kg
- Regulation UN R129/03
- 61 - 105 cm
- 76 - 105 cm
4 Awards
523001207 (Moon Black (Plus))
Product Details
Specifications:
- Age range: From approx. 3 months up to 4 years (from birth with newborn inlay)
- Child height: 61 - 105 cm (from 40 cm with newborn inlay)
- Child weight: Max. 19 kg
- Approval regulation: UN R129/03
360° Comfort and Safety
Say hello to rear-facing travel with the ADAC awarded CYBEX Sirona G i-Size car seat, with up to 50% higher safety levels¹ for your child. The innovative 360° rotation makes on and off-boarding so much simpler for parents as the child is placed in a much more manageable position. Once on-board they will be cool and comfortable whatever the weather, with an all-round ventilation system with special mesh fabric increasing breathability by a factor of six². A cleverly integrated Linear Side-Impact Protection System gives streamlined, reinforced protection in the event of a side collision. As part of the Modular G family, the base you had for the Cloud G i-Size fits perfectly to this seat: continuous safety for the first four years.
Care instructions:
- Fabric covers machine washable at 30° C
Compatible with:
- Base G
- Car Seat Cup Holder
- Sirona G Line Newborn Inlay
- Sirona G Line Summer Cover
- SensorSafe 4-in-1 Kit Toddler
- ISOFIX Guides
References
¹ Compared to the same seat forward-facing in a frontal crash. Result of internal testing using 2022 ADAC frontal crash test criteria.
² Compared to conventional car seat covers.



Videos
Measurements
- Length
- 710 mm
- Width
- 440 mm
- Height
- 750 mm
- Weight without Base G
- 6.5 kg



What is included?
- Sirona G i-Size toddler car seat
- User guide (Quick-start guide and digital guide access)
Base G
The Sirona G i-Size clicks on and off the Base G. This is installed using a load leg and ISOFIX. The Base G ensures safety and stability, and it can also be used with the Cloud G i-Size baby car seat. Look for the i-Size logo in your vehicle to check compatibility. If there is no i-Size logo but your car has ISOFIX, please check our Car Compatibility tool.
Downloads
If you would like to make a warranty claim, please contact the original retailer you purchased your CYBEX product from. They will guide you through the warranty claim process. If you purchased your product directly from the CYBEX Online Shop, please use our Contact Form. The conditions of the manufacturer's warranty are listed in your user manual.
If you’re unsure how to reach the retailer, our Store Locator may help you find the right contact.
If you need to purchase spare parts for your CYBEX product, please contact our Customer Service. They will guide you through the process and provide assistance on how to proceed.
Please note: The CYBEX Online Shop can only assist with purchases made directly on our website.
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