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Britax Romer DualFix i-Size Car Seat

Code: 2327
  • £299.00
  • (Free Next Day Delivery)
  • RRP £375.00
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Britax DualFix i-Size Car Seat

Britax DualFix i-Size Car Seat is the ultimate in safety and comfort for your precious munchkin during the first 1500 days of their life! Thinking in detail about the safety features of their products, Britax have come up with a highly tested model which not only offers parents the very best in safety but a car seat that also looks super stylish.

Why should I choose the Britax DualFix i-Size Car Seat?

The Britax Dualfix i-Size Car Seat is suitable from birth to 4 years (105 cm). The DualFix i-Size Car Seat is designed so that it can rotate 360 degrees, offering ease for parents so that it can be moved from rearward facing to forward facing and back without the hassle of having to reinstall the seat each time.

During the first four years of your child's life, they grow approximately 52 cm. That means that they will have outgrown 8 clothing sizes by the time they turn four! That’s a huge amount of growth! The DualFix i-Size provides constant comfort during this period of time. This clever car seat offers 12 recline positions (forward and rearward facing), including an ergonomically flat lying position for a newborn. There is also extended leg space for your "big" little one so that they are not all scrunched up and moaning about being uncomfortable on a long journey. Yes, Britax think about parents too!

The side wings of the Britax DualFix i-Size Car Seat are wider and cushioned which helps to absorb any side impact and the V-shaped headrest has been carefully created so that the movement of your child’s head during a collision is controlled in a way that protects and reduces injuries.

The 5-point harness with soft neoprene chest pads keeps your monkey snug in their protective shell whilst preventing annoying and uncomfortable straps from digging into their delicate skin. The height adjustable support leg provides extra stability for the car seat via the vehicle floor. It minimises the tilting and reduces the forward movement during a collision, helping to protect your little soldier from getting hurt. 

The patented Pivot Link ISOFIX System ensures that your child is well protected in the unlikely event of an accident, whether the impact comes from the front, from the side or the back. It works by directing the force of the impact downward into the car seat and forward afterwards, so that the risk of suffering a head or neck injury are hugely reduced.

Do I get a warranty with the Britax DualFix i-Size Car Seat?

Yes. You receive a 2 year manufacturer’s warranty against manufacturing or material defects (excludes polystyrene inserts). This applies to UK mainland only.

Is there a review of the Britax DualFix i-Size Car Seat?

Yes, click here to see a full review to help you make a choice.

MFM 2019 Best i-Size Car SeatMFM 2019 Gold Best Rear Facing Car Seat

How safe is the Britax DualFix i-Size Car Seat?

Britax’s internal standards are more demanding than those of the current standard ECE R129 (i-Size). DualFix i-Size is an i-Size Car Seat that has been equipped with a large number of innovative safety features. 

Britax believe that product development and production should be a process that is as closely linked as possible. That's why the DualFix i-Size Child’s Car Seat has been completely developed, designed and manufactured in Germany. And it has only been approved after numerous tests in Britax’s modern in-house crash test facility. That's how they can guarantee the best possible quality for consumers. And this applies not only to the seat components but also to the covers and fabrics, all of which are manufactured in Europe.

The Britax DualFix i-Size Car Seat’s cover is machine washable and is easy to remove quickly without having to remove the harness first. All this to ensure that your little nippers are always safe on the road whilst looking awesome too!

What are the specifications of the Britax DualFix i-Size Car Seat?

Forward facing installation 76 - 105 cm

Rearward facing installation 40 - 105 cm

Dimensions (H x W x D) 48 x 44 x 74 cm

Weight: 15 kg

Age suitability: Birth - 4 years

Weight suitability: Birth - 18 kg


Delivery within the UK Mainland (does not include Northern Ireland)*

  • FREE Next Business Day Delivery (order by 13:00, weekday deliveries only) for UK Mainland orders over £50
  • £5 Next Business Day Delivery (order by 13:00, weekday deliveries only) for UK Mainland orders under £50
  • £8.95 per box surcharge for Specified Weekday
  • £18.95 per box surcharge for Saturday Delivery
  • "Sold out" items are currently unavailable
  • "Direct - Delivery Date To Be Advised" items are delivered directly by the manufacturer according to timescales they dictate. Refer to product page for best guess estimates

*Excludes remote locations where surcharge of £20 per parcel is applicable

*Please note that deliveries to Scotland can take an extra day to be delivered

Delivery to UK Islands & Highlands*

  • £15 per item to Northern Ireland
  • £20 per item to Islands & Highlands (see list below) 
  • £50 per item to Channel Islands 
  • The standard delivery time to UK Islands & Highlands is 3 - 5 working days. 

*We deliver to Western Isles, Scottish Isles, Shetland, Orkney, Isle of Skye, Isle of Man, Isle of Wight, Highlands and Remote Areas

*Remote locations are subject to surcharge of £20 per parcel

*Please note that you will be contacted after order placement with regards the number of parcels required to ship your order should it be more than 1. 


Delivery to Mainland Europe*

  • £30 per parcel, for multiple parcels, multiple charges apply (please see below)
  • The standard delivery time to mainland Europe is 3 - 5 working days depending on geographic location. 

*We deliver to Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Ireland, Latvia, Lithuania, Luxembourg, Netherlands, Northern Ireland, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden.

*Excludes remote locations where surcharge of £20 per parcel is applicable.

*Please note that you will be contacted after order placement with regards the number of parcels required to ship your order should it be more than 1, multiple charges will apply. 

*All products by Britax, Graco, Joie, Nuna are restricted from being shipped outside the UK Mainland. Orders for these products with delivery addresses outside of the UK mainland will not be shipped. 

Delivery Timing

Occurs Monday to Friday, generally 9am - 6pm (excluding public holidays). Please note that collections occur Monday to Friday (excluding public holidays).

Please Note

  • If the buyer wants to cancel the order that is already in transit you simply reject delivery 
  • If the buyer accepts the parcel and then cancels the order, the return costs are at the buyers expense 
  • If a delivery is rejected or 3 delivery attempts are made without success the order will be automatically returned to sender
  • Cost to attempt re-delivery of an order is £15 per parcel for UK mainland & £30 per parcel for European addresses
  • Orders travelling outside UK mainland: You may wish to arrange insurance against loss or damage 
  • We may use recycled packaging if the packaging provided by the manufacturer isn't sufficient. Please check contents. Any parcel refused without checking will be subject to £15 returns charge
  • Please note that product warranties are not valid outside of the UK mainland, we will try to help you as best we can with parts and fixes but delivery costs are chargeable 
  • If paying by card over the phone the delivery address must be the same as the billing address so that we can help prevent fraud. (If proof of address can not be provided) 

We offer a 30-day return policy on all non-disposable items that are unused [Consumer Rights Act 2015]. If you are not satisfied with the products you purchased, simply send them back to us unused, in the original packaging and in resellable condition (at your own cost and risk). Include your order number and name. 

Conditions for refunds are:

  • Item must be with us within 30 days of receipt
  • We will repay the amount to the payment method used, eg. paypal, credit card, debit card
  • Delivery costs to return the item will not be refunded 
  • The product must be unused and returned with all original packaging
  • The product and packaging must be in resell-able condition
  • We reserve the right to not reimburse for any used goods 


  • Cancellation and return of special order items and assembled furniture may be subject to a charge for us to re-stock
  • If you do not want to arrange your own return we can do so at a cost of £15 per package and per attempt (UK mainland only)
  • Individual items from bundles or packages are not returnable. Bundles & packages must be returned in full 
  • If an item from a multi item purchase is returned delivery charges will be recalculated and applied to the remaining live order 
  • If need be, we can supply a suitable transport carton at a cost of £10


Return address: 

1 Old Park Farm 
IP13 0LZ

Showing our 3 DualFix i-Size Car Seat reviews with an average rating of Excellent. Would you like to write a review?
Review Summary - 5 out of 5 based on 3 ratings.
  • Overall Rating
  • Quality
  • Ease of Assembly
  • Value for Money
  • Review Date - 16th September 2020
  • Your Review - I have mixed feelings. On the one hand, you can find very competitive prices and the delivery was extremely fast. But on the other hand, once I opened the box there was a surprise inside. Some spiderwebs and a few spiders were in every corner in the box. I just hope they have not left any eggs in the car seat. You should take care of these details. If it was not for this, you would deserve five stars rating for sure.
  • Product Reviewing? - Colour: Storm Grey
  • Would you recommend this product? - Yes
  • Gender - Male
  • Location - Spain

September 16, 2020
  • Overall Rating
  • Quality
  • Ease of Assembly
  • Value for Money
  • Review Date - 19th August 2020
  • Your Review - The best car seat I’ve ever seen! Top quality, I definitely recommend it!
  • Product Reviewing? - Colour: Blue Marble
  • Would you recommend this product? - Yes
  • Gender - Male
  • Location - Italy

August 19, 2020
  • Overall Rating
  • Quality
  • Ease of Assembly
  • Value for Money
  • Review Date - 15th February 2018
  • Your Review - What a fantastic car seat in every way! Gives us peace of mind that our daughter is really safe and she loves it, so comfortable and sleeps on all of our journeys. The spin feature is brilliant so easy to get her in and out. Would definitely recommend this.
  • Product Reviewing? - Expedition: Storm Grey
  • Would you recommend this product? - Yes
  • Gender - Female
  • Location - Surrey

February 15, 2018
Showing our 3 DualFix i-Size Car Seat reviews with an average rating of Excellent. Would you like to write a review?