By clicking a retailer link you consent to third party cookies that track your onward journey. If you make a purchase, Which? will receive an affiliate commission which supports our mission to be the UK's consumer champion.

Britax RömerDiscovery Plus 2

i-Size child
Vehicle seat belt and isofix connectors

£105View retailers

Test score

Lowest available prices

Sign up to unlock the full expert review

The Britax Romer Discovery Plus 2 is a high-backed booster car seat, which the manufacturer claims is slim enough that you can fit three of them across the back seat of a range of vehicles. Our lab experts assess how much room it takes up on a seat, alongside a host of other checks including tough crash tests, ease of installation and how comfortable it is. Read our full car seat review to find out how it scores.

pros

Content has been blurred out, please log in to view.

cons

What's included?

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

Full Access first month £5, then £10.99 per month, cancel at any time

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

Oct 2023First reviewed by Which?
Aug 2023Released

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

3 Jan 2024

Safety rating

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
Height of child	100cm-150cm
Seat size	i-Size child
Age group	Child
Direction of travel	Forward facing
Extended rear-facing seat	No
Installation type	Vehicle seat belt and isofix connectors
Harness or shield seat	Adult 3 point seat belt
How is the child held in the seat?	No harness
Manufacturer URL	https://www.britax-romer.co.uk/

Features
Adult seat belt	Yes
Isofix integrated into seat	Yes
Isofix base	No
Belted base	No
Type of Isofix	Isofix connectors
Swivel seat	No
Weight of seat (kg)	6.1kg
Part of a travel system?	No
Adjustable headrest	No

Compare retailers

Prices updated daily

Prices are ordered from lowest to highest, irrespective of retailer rating or stock, and exclude any potential delivery costs. We are not able to show every possible retailer and cheaper prices may be available.

Suggested Alternatives

Cybex

Solution G i-Fix

i-Size child
Vehicle seatbelt and isofix connectors

£129.95View retailers

Test score

Joie

Traver

Group 2/3 High-back booster
Isofix and belt installation possible

£90Typical price

Test score

Nania

BeFix SP

Group 2/3 High-back booster
Belted installation only

£35Typical price

Test score

How we test baby and child car seats
We crash-test every baby, toddler and child car seat we review to reveal which ones give the best protection in a crash, and which you should avoid
Car seat weight groups and height groups explained
We explain how to choose a car seat that fits your child, whether it's a newer i-Size car seat or an older group 0, 1, 2 or 3 car seat
Best baby or child car seats 2024
Stop car seat confusion with our guide to how much you should spend, whether to go for a group seat or i-size and find out why car seat jargon, such as Isofix, should matter to you

All child car seat advice

Britax RömerDiscovery Plus 2

Lowest available prices