Car Seat Guide | Go Argos

Car Seat Buying Guide

Make sure your little one gets around safe and sound
with our car seat buying guide.

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What type of car seat do I need?

Types of Car Seat

Weight Range

Age Range



Group 0 +


Birth to 12-15 months

Rear facing

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0+ and 1


Birth to 4 years

Combination rear and forward facing

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Group 1


9 months to 4 years

Forward facing or combination
rear and forward facing

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1,2 and 3


9 months - 12 years or 135cm tall

Forward facing, high backed booster seat

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2 and 3


4-12 years or 135cm tall

High backed booster seat or just a booster seat

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Group 0+ Car Seats

Made for newborns and younger babies, a Group 0+ Car Seat is a great choice for your new arrival.

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Group 0+ - All you need to know

  • Group 0+ is perfect for newborns and will see your little one through until they are 12 to 15 months old (13kg).
  • You need to buy your first car seat before your baby is born as you can't drive them home from the hospital without one (it's against the law to ever take your baby in a car without a car seat).
  • Group 0+ car seats are always used in a rearward facing position. It's best to keep your child rear facing for as long as possible, until they are at least 2 years old, as this offers better protection for little ones if you have an accident.
  • Typically lightweight, most Group 0+ models have a carry handle and are compatible with pushchairs. This creates a travel system (find out more), making transporting baby from the car to wherever you are going as easy as possible.

Group 0+ and 1 Car Seats

Group 0+ and 1 are versatile combination seats that can see your child through from birth to around 4 years. They can be both front and rear facing, depending on the age of your child.

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Group 0+ and 1 - All you need to know

  • With both front and rear facing options, Group 0+ and 1 is a flexible choice. You can move your child to front facing after 2 years, but most Group 0+ and 1 seats can offer rearward facing travel up to 4 years (18kg).
  • Most seats are installed using ISOFIX (find out more), which is the safest and most secure way to fit your car seat.
  • These seats are car only and can't be used to carry your child. They can be used longer than Group 0+ car seats, but you'll need a separate pushchair.

Group 1 Car Seats

If your little one has outgrown their Group 0+ baby car seat, a Group 1 is the next size up.

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Group 1 - All you need to know

  • Group 1 car seats are mostly forward facing and can generally be either upright or reclined for when they want to sleep.
  • Most seats are installed using ISOFIX (find out more), which is the safest and most secure way to fit your car seat.
  • Some Group 1 seats may include the option to be rear facing until a child is 4.
  • A Group 1 car seat is suitable for children from 9 months to 4 years (9-18kg).

Group 1, 2 and 3 Car Seats

If your baby has outgrown their Group 0+ car seat, a Group 1,2 and 3 seat offers fantastic longevity.

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Group 1, 2 and 3 - All you need to know

  • A Group 1,2 and 3 car seat is suitable for children 9 months to 12 years old (9-36kg) and can be used until they no longer need a car seat.
  • They are high back booster seats with an integral harness, giving your child's chest and head extra protection.
  • A height adjustable head rest keeps your child comfortably supported as they grow and ensure the seatbelt (used from 15kg) is at the correct height to keep them safely seated.
  • Most seats are installed using ISOFIX (find out more), which is the safest and most secure way to fit your car seat.

Group 2 and 3 Car Seats

Group 2 and 3 car seats are perfect for older children who need a boost to ensure the seatbelt is in the right position to keep them safe.

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Group 2 and 3 - All you need to know

  • Typically lightweight, making for easy movement between different cars.
  • Some feature armrests or cup holders for an added touch of comfort.
  • With an adjustable headrest, and some with adjustable width, growing children are able to stay comfortable as they get older.
  • A Group 2 and 3 car seat is suitable for children from 4-12 years (15-18kg).


ISOFIX is a car seat fitting system which allows car seats to be fitted easier and safely, with less risk of incorrect installation.

ISOFIX - All you need to know Shop ISOFIX

  • ISOFIX uses two sockets at the bottom of your car's seats. An ISOFIX compatible car seat has two bars that plug straight into these sockets, and a third support, a leg that stands on the car floor or a top tether that attaches to the back of the seat.
  • If you're not sure if your car has ISOFIX, you should be able to find out by checking your car's back seats, looking in your vehicle handbook or looking on the car maker's website.


i-Size is the new European standard for car seats which is beginning to be phased in. They still use the same group numbers, but i-Size seats measure suitability using your child's height, instead of their weight. Because of this, i-Size seats allow your child to be rear-facing for longer and offer more protection if your car is involved in a side-on collision.

In the future i-Size will become the legal standard for car seats. The other benefit of i-Size is that it's developed to work with ISOFIX so that in the future all car seats will be able to fit all new cars.

Key Features

3 point harness - Mostly found on car seats for newborns, a three point harness has a crotch strap and two shoulder straps which buckle together over a child's pelvis.

5 point harness - Found on Group 1 seats and above. The two side straps offer greater protection as children grow larger and heavier.

Travel system - A travel system is a combination of newborn baby car seat and a pushchair. You can simply remove the car seat from the pushchair frame and fit it into your car. The frame can then be folded down and transported into the boot. Some models may also include a carry cot.

3 point seat belt - You can only use a car seat with a three point seat belt. Fortunately most cars already have these. They have two straps, one across the waist and one across the chest.

Essential Safety

  • Children need a car seat from birth until they are 12 years old or 135cm tall.
  • Never buy a second hand car seat. Some are so well made that they could have been in an accident and you wouldn't even know it.
  • It's illegal to use a rear facing car seat in the passenger seat if there is an active airbag. It's very dangerous if it's a forward-facing seat, so it is always best to keep children in the back seat.
  • Don't keep a baby or young child in a car seat for more than two hours until they are at least 3 years old.
  • Booster cushions help raise a child's seating position so that the car's seat belt fits them properly. They should only be used when children are over 125cm tall and over 22kg in weight
  • Avoid putting your child in heavy coats when using a car seat as you won't be able to fasten the belts tightly around their body. If you can fit more than two fingers under the harness, it's not tight enough.
  • The belt buckle of the car seat should not be in contact with the frame. If there's an accident, pressure on a buckle could cause the belt to come loose. It should be positioned down the side of the seat, with only the straps touching the frame. This prevents buckle crunch.
  • Look out for a safety label. A safe car seat will have a label with an E mark, which should read 44 04 or 44 03 or the new i-Size R mark R129.

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