Britax Dualfix I-size Car Seat

From £325


Fitted bundle deal

includes Accessories + Fitting

Britax Dualfix I-size Car Seat

Britax Dualfix I-size Car Seat is rated 5.0 out of 5 by 3.
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From £325

Save £105
Was £430 *

Intervening prices may have been charged

£ From 325 a month


Age: 0 Months to 4 Years

Weight: 0 to 18kg



Half price Chicco BebeCare Easy Tech when you buy any child seat*

Chicco Bebecare uses integrated motion sensor technology to alert parents if baby has been in the car for too long

Click here to view the Chicco Bebecare

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*50% off marked price.
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Car Seat Fitting
  • Description
  • Specification
  • Reviews
  • Delivery Options
  • Help & Advice
  • Buying Options
  • Britax Dualfix iSize Group 0+/1 Child Car Seat

    • Suitable from birth to 4 years (18kg)
    • ISOFIX Compatible
    • Forward and rearward facing
    • Side Impact Protection
    • Removable covers
    • Adjustable ergonomic headrest
    • 5-point harness
    • 12 recline positions

    The Britax Dualfix iSize Group 0+/1 Child Car Seat is a highly versatile seat which gives you complete flexibility from birth right through to 4 years of age (0-18kg). Featuring 360º rotation, your child is comfortable facing forward and rearward - they can also move round to face the car door, making harnessing easy. The Britax Dualfix iSize Group 0+/1 Child Car Seat is complete with a host of advanced features giving you safety you can rely on - such as optimised side impact protection and a Pivot Link ISOFIX system that protects from every angle. Plus, no less than 12 recline positions ensure total comfort, from a flat support for newborns, to extended leg room for when your little ones get bigger.


    Size Guide

    Car Seats Baby Toddler Child
    Weight (kg) 0 - 19kg 9 - 36kg 15 - 36kg
    Weight (lbs) 0 - 42 20 - 80 33 - 80
    Height (cm) 40 - 105 70 - 135 100 - 135
    Height (Inch) 1' 4" - 3' 6" 2' 4"- 4' 5" 3' 4" - 4' 5"
    Age 0 months - 4 years 9 months - 12 years 4 - 12 years
  • Age: Baby
    Age Band: Birth - 4 years
    Group: Group 0+/1
    Isofix Compatible: Yes
    Suitable For: 0 - 105cm
    Adjustable Headrest: Yes
    Child Weight: 0 - 18kg
    Cup Holder: No
    Depth of Seat: 74.0cm
    Direction: Rearward and Forward
    Extended Harness Use: No
    Extended Rear Facing: Yes
    Height Of Seat: 48cm
    I-size: Yes
    Impact Shield: No
    Isofit High Back Booster: No
    Lie Flat: No
    No Rethread Harness: No
    Recline Positions: Forward 6 , Rearward 6
    Removable Covers: Yes
    Restraint Method: 5 point harness
    Rotating Seat: Yes
    Seat Belt Tension System: No
    Side Impact Protection: Premium
    Travel System Compatible: No
    Weight of Seat: 15.0kg
    Width of Seat: 44.0cm
  • FREE Click & Collect

    Ordering a bike?

    FREE Click & Collect - you can reserve an item online and pick it up from a store of your choice

    Simply enter your Postcode on the product page to check availability, and select Click & Collect at checkout. What's more, you pay for your items on collection. Click here to learn more.

    If you're ordering a bike and want us to build it for you for free before you collect it, an additional 24 hours will be added to your collection date to make sure it's ready for your arrival. This will be confirmed at checkout and in your confirmation email. The store will call you before building your bike to confirm your collection date.


    FREE Delivery

    Free Delivery available on orders over £40 placed by 8pm*

    Your delivery date will be communicated at checkout and on your confirmation email. For further information click here.

    *Halfords and Halfords couriers deliver Monday to Saturday excluding bank holidays.


  • You can buy this product from one of our carefully selected Approved Partners. The full list of options available are below. Simply add your chosen option to your basket and proceed to checkout when you're ready.

    You can purchase products supplied by Halfords and selected other suppliers on

    Checkout is always via and all payment will be taken via In checkout the products will be split into separate deliveries for each supplier.

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    Price Seller Info Purchase

Some of the parts we sell here at Halfords have been reconditioned. These will carry a Refundable Deposit or an extra surcharge amount. When you add one of these reconditioned items to your basket, we'll add this extra cost automatically.

Once you've sent us your old item we'll check it over, and then refund you the full surcharge as long as everything is ok.

Before you return your old unit please make sure it's in re-serviceable condition. So if you're returning caliper casings, you'll need to double check they aren't badly damaged or broken. If the part you've sent is found to be unserviceable, we reserve the right not to refund the surcharge.

Please note that if you're returning your old unit to our National Returns Centre then this will be at your own expense.

Britax Baby Car Seats

Britax Dualfix I-size Car Seat

£325 Britax Dualfix iSize Group 0+/1 Child Car Seat