We and our partners use cookies to give you the best online experience, including to personalise advertising and content. Data about your interaction with this site and the ads shown to you may be shared with companies involved in the delivery and/or personalisation of ads on this site and elsewhere online.

Britax Römer Dualfix i-Size vs Cybex Sirona Plus

    17.32 in
    18.9 in
    Britax Römer Dualfix i-Size Child Car Seat
    Britax Römer Dualfix i-Size
      17.32 in
      25.0 in
      Cybex Sirona Plus Child Car Seat
      Cybex Sirona Plus
      Available colors
      User rating
      119
      3.6 out of 5
      119 user ratings
      5 stars
      		28 %
      4 stars
      		25 %
      3 stars
      		26 %
      2 stars
      		15 %
      1 stars
      		5 %
      65
      4.1 out of 5
      65 user ratings
      5 stars
      		50 %
      4 stars
      		16 %
      3 stars
      		21 %
      2 stars
      		10 %
      1 stars
      		0 %

      Full Comparison

      Units:

      Technical details

      Britax Römer Dualfix i-SizeBritax Römer Dualfix i-Size
      Cybex Sirona PlusCybex Sirona Plus
      TypeCar seat for childrenCar seat for children
      Direction
      • Rearward facing
      • Forward facing
      		Forward & rear facing
      Internal beltyesyes
      Safety standards
      R129
      		ECE 44.04-Marked
      Suitable for (kg)0 - 180 - 18

      Dimensions

      Britax Römer Dualfix i-SizeBritax Römer Dualfix i-Size
      Cybex Sirona PlusCybex Sirona Plus
      Weight33.07 lb33.07 lb
      Depth29.13 in26.77 in
      Height18.9 in25.0 in
      Width17.32 in17.32 in
      Colour of product
      • Black
      • Blue
      • Green
      • Grey
      • Red
      • Pink
      • Grey
      • Blue
      • Blue,Navy
      • Red
      • Green
      • Purple
      • Brown,Khaki
      • Black
      • Gold,Red
      • Beige,Red
      • Beige
      • Pink,Violet

      Features

      Britax Römer Dualfix i-SizeBritax Römer Dualfix i-Size
      Cybex Sirona PlusCybex Sirona Plus
      Adjustable backrestyesyes
      Height-adjustable headrestyesyes
      Washable coveringyesyes

      Pros & Cons

      Pros
          Cons

              Often compared with Britax Römer Dualfix i-Size

              Britax Römer Dualfix i-Size Child Car Seat
              Cybex Sirona
              Britax RömerDualfix i-Size
              CybexSirona

              Often compared with Cybex Sirona Plus

              Cybex Sirona Plus Child Car Seat
              Cybex Sirona
              CybexSirona Plus
              CybexSirona
              Cybex Sirona Plus Child Car Seat
              Cybex Sirona M
              CybexSirona Plus
              CybexSirona M