GracoNautilus

Group 1/2/3
Belted installation only

£120Typical price

Test score

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The Graco Nautilus is a forward-facing Group 1/2/3 seat, that’s been around for a while and which we tested back in 2011. The adult seatbelt secures the seat and an older child in place, while an integral harness secures younger children (9 to 18kg). Find out how it compares with other multi-group booster seats.

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What's included?

What is it?
How safe is it?
Is it easy to fit?
Is the seat comfortable?
Is there anything I should watch out for?
Is there anything else I should know?
Should I buy it?
Where can I buy it?

KEY TEST RESULTS
Safety rating
Fitting in car
Comfort of your child

Aug 2023Last checked by Which?
Jun 2012First reviewed by Which?
Jan 2011Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test baby and child car seats

22 May 2025

Safety rating

Overall
Forward-facing group 1 (belted)
Forward-facing group 2/3 (belted)

How we test safety rating

The overall safety score is made up of the results of crash testing (front crash; side crash) seat design, stability in the car and belt routing. Our crash tests go beyond the legal minimum requirements for UK car seat regulations and are conducted at higher speeds and forces than the regulations require. We feel our tests more accurately reflect what could happen in a real life crash.

Fitting in car

Overall
Buckling up
Avoiding misuse and instructions
Cleaning
Space required in car

How we test fitting in car

Fitting and using includes: How easy it is to install the seat correctly in the car. How easy it is to strap a child securely into the seat. How well the seat is designed in order to prevent incorrect use. How easy the seat cover is to remove and wash. How little space the seat takes up in the car and how comfortable your child is in the seat.

Ergonomics

Overall
Comfort of your child

How we test ergonomics

Our experts conduct an ergonomic assessment of each seat to make sure your child will be in the best position when travelling, along with the level of padding and support. Our tests also reveal how much space this car seat takes up in the back seat of a car and how easy it is to get your child in and out of the seat. Plus, our eagle-eyed car seat experts will check whether this seat affects how much space any front passengers have. This assessment was introduced to our site in May 2015. If a seat does not have this score, it was tested before May 2015.

General
Weight of child	9-36
Seat size	Group 1/2/3
Age group	Multigroup
Direction of travel	Forward-facing
Installation type	Belted installation only
Harness or shield seat	Harness
How is the child held in the seat?	5 point harness for Group 1 then adult 3 point seat belt for Group 2/3
Manufacturer URL	www.graco.co.uk

Features
Adult seat belt	Yes
Isofix integrated into seat	No
Isofix base	No
Belted base	No
Type of Isofix	No Isofix
Swivel seat	No
Weight of seat (kg)	8.7kg
Part of a travel system?	No
Harness height adjustment	Manually change
Recline	No
Adjustable headrest	Yes

Suggested Alternatives

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Oneto3

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£139.95View retailers

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Graco

Assure II/III

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£32.95View retailers

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