Sirona SX2 i-Size

Product Code: 521003077
Simple to set up. A dream to use. The 360° rotating Sirona SX2 i-Size takes the stress out of installing the car seat and getting your child secure. Reliable safety features combine with ease of use for a carefree travel experience.
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Autumn Gold
In Stock
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Product Details


  • Quick and easy to get your child onboard
  • Comfortable travel in the safest position
  • Preset side-protection for error-free installation

Automatically safe and easy travel

It only takes a moment to get your child onboard and to swivel the seat to a rear-facing position, safe and secure from the start of your trip. If you wish to switch your child to forward-facing when they grow bigger, 360˚ rotation lets you do it in seconds. And the advanced Linear Side-impact Protection System is preset for immediate use – one less thing to take care of so you can focus on enjoying the journey ahead.

Tech Specs:

  • i-Size Norm, UN R129/03
  • Height: 61 – 105 cm (from 45 cm with newborn inlay)
  • Weight: max. 18 kg
  • Age: from approx. 3 months up to 4 years (from birth with newborn inlay)


  • 360Ëš rotation mechanism
  • Rear-facing car seat
  • Advanced Linear Side-impact Protection
  • Energy Reduction Technology
  • One-hand recline function
  • Height-adjustable headrest
  • Belt holder
  • Energy-absorbing shell

Care Instructions:

  • Fabric covers machine washable at 30°


  • Compatible with Newborn inlay, Summer cover, Cup holder, ISOFIX guides, Sensorsafe 4-in-1 Kit

Installation with ISOFIX: Pay attention to the i-Size logo. If a vehicle seat is marked with this logo, it is suitable for use with all i-Size child seats and will therefore not appear in our list of compatible vehicles. If your vehicle does not have an i-Size seat, please check the compatibility of your vehicle. If your vehicle is not displayed, please contact our customer service team.


710 mm
490 mm
680 mm
14.1 kg
Dimensions – Open
Dimensions – Open
What is included?

What is included?

  • Sirona SX2 i-Size Toddler Car Seat
  • Integrated Base
  • User Guide
Car Compatibility

Fits in your i-Size compatible car.