Britax Römer DUALFIX 5Z (birth-4y)
The Britax Römer DUALFIX 5Z is a highly versatile rotating seat designed from birth to approximately 4 years, enabling a safe rearward-facing position for infants and an easy swivel for comfortable loading. It includes advanced side-impact protection, multiple recline positions and a soft newborn insert for secure, ergonomic support. The 360° rotation, premium materials and robust ISOFIX base make it an excellent choice for parents who prioritise safety, convenience and extended rearward-facing travel.
Specifications
| Material | Aluminium-reinforced shell, EPS foam, organic cotton blend cover |
| Age Range | From birth to approx. 4 years |
| Height Range | 40 - 105 cm |
| Weight Range | 0 - 18 kg |
| Installation | ISOFIX base with 360° rotation and pivot technology |
| Rotation | 360° swivel with multiple lock positions |
| Dimensions (LxWxH) | 60 x 46 x 64 cm |
| Weight (seat + base) | Approximately 12.5 kg |
| Certifications | ECE R129 (i-Size), ADAC tested |
| Cleaning | Removable baby-friendly cover, machine wash cold |
| Brand | Britax Römer |
| SKU | 156 |
Reviews
We love how the seat supports rearward-facing for longer. Very reassuring safety tech and easy-to-use recline.
Such a cute Bonds Baby Wondersuit Zip Romper design, and the fabric feels premium. I came across it online and liked the look for my baby, though I haven't bought it.
This Bonds Baby Wondersuit Zip Romper is a keeper for our 3-month-old. The fabric feels gentle on delicate skin and the zip is smooth.
Excellent stability and premium materials. Our infant seems very cozy in rear-facing position.
We love the zipper guard and how snug it stays on our baby. It’s a relief not to fight with snaps every time.
Love the simple Bonds zip design in the Bonds Baby Wondersuit Zip Romper—no fiddly buttons, just one smooth motion.
Nice fit for a growing baby; I liked the easy access for diaper changes.
The fit is true to size and the zipper is sturdy. We used this during a weekend trip for a 3-month-old and it held up well.


