Royal Britax baby car seat gets top marks for fittingWhich? has tested the royal baby car seat

24 July 2013

britax baby-safe

The baby car seat chosen by Prince William and Kate for the royal baby got top marks for fitting when it was tested by Which?.

The Duke and Duchess of Cambridge chose a Britax Baby-Safe Plus.

Britax believes the baby car seat was used with an Isofix base, which is attached directly to permanent mounts in the car rather than using a seat belt.

Using Isofix reduces the possibility of installing the baby car seat incorrectly and the base makes it very quick and easy to fit and remove. 

We've tested Britax Baby-Safe Plus car seats with and without the Isofix bases, and the two versions scored differently in our tests. Find out which makes and models are  and find out if the one chosen by the royal couple was a Which? Best Buy.

Baby car seat fit for a royal baby? 

The baby car seat chosen by William and Kate was reviewed by Which? in May 2008. The typical price is £80 - though the colour combination they chose is no longer available.

Our experts found it was very easy to fit - demonstrated by new dad William as he left the hospital - with very clear instructions and easily understood warning labels. However, the shoulder straps weren’t correctly positioned over the baby’s shoulder and chest, when he carried the baby to the car (though they might have been adjusted once inside the vehicle). For a harness to work well, it needs to fit snugly across the child's body.

We found the baby car seat's harness can easily be adjusted as the child grows and the seat is well-padded, with very good leg and head support. 

Choosing the best baby car seat 

Using the wrong type of child car seat, or fitting it incorrectly, can lead to a child suffering more severe injuries than they would do using the correct seat in a crash.

Here are the key steps that will help you get it right:

  • Choosing - find out what type of baby car seat is suitable for the weight, height, age and stage of physical development of your child.
  • Buying - make sure that the baby car seat will fit properly in all the cars that your child will travel in.
  • Fitting - learn how to fit your child car seat properly and adjust it safely.

Learn how to choose the best car seat for your little one.  

Child car seat safety is key

The law about child car seats states that you must use an appropriate child restraining system (child car seat) when carrying all children up to 135cm/4ft 5in, although there are a few exceptions to this rule.

However, safety experts recommend you use a child car seat for all children under 150cm. 

For those over 36kg (5st 10lb) but under 150cm, our advice is to go by height, not weight.

More on this...

  • Read all our child car seat reviews
  • Learn how Which? tests child car seats
  • See how to fit a child car seat