Britax Safe n Sound Millenia


TYPE A4/B Convertible Car Seat (Birth to 4 years approx).

REARWARD FACING INSTALLATION (Birth to 2-3 years approx).

FORWARD FACING INSTALLATION (12 months to 4 years approx).

Available Colours: Pebble Grey, Midnight Navy, Safari & Silhouette Black




  • ISOFLEX™ – Equipped with ISOFLEX Connectors to provide a simple, firm connection into a vehicle with ISOFIX low anchorages in conjunction with top tether. ISOFIX is an alternative method of installation that may reduce mistakes that are associated with traditional seat belt installation.
  • Side Impact Cushion Technology (SICT) – Head Protection –Unique SICT layer provides 180 degree protection around a child’s head. SICT minimises the energy generated in a side impact crash.
  • Rear Facing For Longer – Your child can remain rearward facing until they are approximately 2-3 years old, which is safer for your child.
  • Active Head Restraint (AHR) – Designed specifically with deeper side wings that shield and contain your child’s head in a side impact crash. AHR grows with your child working with SICT to contain your child’s head and to minimise impact forces.
  • Thermo5™ – This high performance fabric with Bamboo Charcoal delivers the premium comfort your baby deserves.
  • Hassle Free Harness – Single handed height adjustable headrest and harness allows the seat to grow with your child without the need to remove and re-thread the harness. Reducing the risk of incorrect installation and enhancing correct harness fit.
  • Infant Safety Cushion™ –This cushion includes EVA composite material that provides support and protection for a small baby absorbing energy during a side impact crash. Specially designed ventilation holes offer breathability and comfort.
  • EZ-Buckle – This system retains the harness buckle in a forward position and prevents the child from sitting on the buckle when boarding.


  • ISOFIX Compatible – Allows direct connection to the car’s ISOFIX low anchorage points.
  • Safety – 180° SICT protection around your child’s head.
  • Protection – As your child grows, the AHR shields and contains your child’s head in a side impact crash.
  • Security – Rear and forward-facing seat belt lock-offs fitted to provide a more secure fit.
  • Support – Shoulder pads to provide extra support.
  • Comfort – 4x recline positions in forward-facing mode.
  • Colourful Holder – Can be used to attach toys.
  • Simple – Push button harness adjustor.
  • Car Protection – Full length car seat protector.
  • Storage – Handy storage pocket.


  • Product weight (8.9 kg approx).
  • Dimensions – Rear Facing – H: 600mm (min) – 700mm (max) x D: 600mm x W: 385mm (base) – 500mm (max)
  • Dimensions – Forward Facing – H: 640mm (min) – 810mm (max) x D: 390mm x W: 385mm (base) – 500mm (max)

Additional information

Weight 9.6 kg
Dimensions 87 × 43 × 43 cm


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