Britax Römer Dualfix 3 i-Size car seat

Britax Römer colour

From €559.90 *

Prices incl. VAT plus shipping costs

  • 2000035176
  • The Britax Römer products can only be sent to countries in the European Economic Area (except Switzerland).
  • Over 28 years experience
  • Secure payment
  • Shipping from Germany
  • Premium products
The Britax Römer Dualfix 3 and the Flex Base iSense are together an unbeatable team, with... more


The Britax Römer Dualfix 3 and the Flex Base iSense are together an unbeatable team, with wich you and your sweetheart are well equpped for the car adventure.

Britax Römer Dualfix 3 i-Size


Years of protection and comfort are the essence of the Britax Römer Dualfix 3 i-Size. The child seat is a follow-up seat after the baby seat, which you can use for your sweetheart from the 3rd month of life up to the age of 4 years and which promises you and your darling safety, comfort, functionality and durability.Together with the Flex Base iSense, you and your sweetheart asre ideal for the car adventure.

Highlights of the Britax Römer Dualfix 3 i-Size

  • Made in Germany Child seat from 3 months to 4 years
  • Prolonged rear-facing driving
  • Reversing from 61 - 105 cm
  • Driving forward from 76 - 105 cm
  • Rotatable 360 ​​degrees
  • Complies with the i-Size standard
  • Support leg with beep for correct installation

With the Britax Römer Dualfix 3 i-Size, your little passenger from a height of 61 cm up to around 4 years of age can ride backwards in the car. If you want, you can turn the seat around and use it facing forward when your sweetheart has reached a height of 76 cm. The special feature of the child seat is that it can be rotated 360 degrees, making it easier to buckle up the child and change direction.

Other properties:

  • Adjustable harness and headrest
  • Isofix and support foot
  • Roll bar for stable attachment
  • 5 point safety belts
  • Soft special shoulder pads
  • Cover washable
  • Integrated side impact protection (SICT inside)
  • V-shaped headrest
  • 6 ergonomic lying positions
  • Deep, soft sidewalls

In the first few years of life, your child grows rapidly. Good to know that the Britax Römer Dualfix M i-Size child seat grows with your darling. The straps and the height of the headrest can therefore be optimally adjusted to the size of your child. The seat can be adjusted to six ergonomic lying positions so that your sweetheart is comfortable on your car journeys. For even more comfort, the seat comes with soft special shoulder pads that nestle perfectly against the body of your little passenger. Particularly practical - you can simply remove the upholstery for washing.

Not only the soft, reinforced 5-point safety belt ensures safety, but also the integrated side impact protection technology (SICT inside). In the event of an impact, the technology even protects your treasure twice over. On the one hand, it dissipates the forces that act in the event of an impact, and on the other hand, it cushions the impact.

Britax Römer is particularly proud of the quality, as the child seat is developed, designed and produced entirely in Germany. This ensures the best possible safety and quality.

The child seat is attached with the Isofix connectors and the support leg. The roll bar offers additional stability and allows the child seat to be ideally adjusted to the backrest of the car.

Flex Base iSense

The Britax Römer Dualfix3 is simply attached to the Flex Base and your sweetheart can travel safely and comfortably. With the help of the Flex Base iSENSE, the Britax Römer Dualfix 3 child seat can be rotated 360 degrees. In addition, the patented Priv Link ISOFIX system together with the Flex Base iSense protects your darling in the event of any accident. Properties FlexBase

Features Flex Base iSense

  • Rotatable Flex Base iSense
  • Correct installation indicators
  • Flex Base locking system for easier installation
  • Weight: 8.7kg Dimensions: 43.5 x 44 x 66 cm (HxWxD)
  • Matching baby car seats: Britax Römer Baby-Safe 3 i-Size, Baby-Safe iSense (up to approx. 15 months)
  • Suitable child seat: Dualfix iSense, Dualfix 3-iSize

Differences between the Britax Römer Dualfix and Swingfix models

In contrast to the Dualfix i-Size, the Dualfix 3-i-Size does not have a newborn insert, so the seat cannot be used from birth, but from around 3 months. The difference to the Swingfix models is that the Dualfix models can be used in both directions of travel, the Swingfix only backwards. Therefore, the Dualfix can also be rotated 360 degrees and the Swingfix only 90 degrees to the door.


Dualfix M
Dualfix i-Size
Dualfix 3 i-Size
Swingfix M



Body Size 40-105 cm 61-105 cm 40-105 cm 61-105 cm
61-105 cm
61-105 cm
Rotation 360°
360° 360°
360° 90° 90°
Newborn insert
 ✓ - - -



Garantie Info

Britax Römer bietet dir auf seine Produkte eine 2-jährige Britax Römer Garantie an.

Read, write and discuss reviews... more
Customer evaluation for "Britax Römer Dualfix 3 i-Size car seat"
Write an evaluation
Reviews will be activated after verification.
Please enter these characters in the following text field.

* mandatory field

I have read the data protection information.