Sirona M2 i-Size

Product Code: 520000403
The Sirona M2 i-Size car seat lets your child safely travel rear-facing until they're approx. four years old (Requires Base M).
incl. VAT, free shipping for a short time
Navy Blue
In Stock
  • Largest selection of CYBEX products
  • Free 30 day returns
  • Secure payment methods of your choice
  • Customer support by CYBEX experts

Product Details

When using the CYBEX Sirona M2 i-Size, the child can be transported in a rear-facing position from birth until they reach 105 cm in height (approx. 4 years). The new, intelligent design means that even taller kids have plenty of leg room to sit comfortably. But it doesn't take up too much space either – the Sirona M2 i-Size can be easily installed in smaller cars. Additional features such as the one-hand reclining function provide extra convenience and make everyday use easier.

Highest safety and comfort until your child reaches 105cm in height

  • Rearward facing up to 105 cm, approx. 4 years
  • Alternatively forward facing from 16 months and 76 cm
  • Integrated L.S.P. System
  • One-hand recline function
  • Height adjustable headrest
  • Click-in system to change seat position

Tech Specs:

  • I-Size Norm, UN R129
  • Height 45 cm – 105 cm
  • Weight: max. 19 kg
  • Age: From birth up to approx. 4 years


  • Rear-facing car seat
  • Alternative - Forward Facing
  • Integrated Linear Side-impact Protection
  • One-hand recline function
  • 12-position height adjustable headrest
  • One-Click Installation with ISOFIX
  • M-Line Modular System
  • Energy-absorbing shell

Care Instructions:

  • Fabric covers machine washable at 30°

Installation with base: 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 therefore will 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.


720 mm
440 mm
620 mm
14 kg
What is included?

What is included?

  • Sirona M2 i-Size Toddler Car Seat
  • Newborn Inlay
  • User Guide
Car Compatibility

Fits in your i-Size compatible car.