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Safest Booster Seat For 4 Year Old Comparison - June 2026

7 Best Safest Booster Seat For 4 Year Old In the UK

1
Best Choice
9.8Exceptional
2
9.7Exceptional
3
9.6Exceptional
4
9.4Excellent
5
Best Value
9.1Excellent
6
8.9Very Good
7
8.8Very Good
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Model

Maxi-Cosi Tanza i-Size, High Back Booster Seat, 3.5–12 years, 100–150cm, Compact Foldable Car Seat, 10 Headrest Positions, G-CELL Side Impact Protection, Padded & Elevated Kids Car Seat, Full Black
Model
BubbleBum Inflatable Booster Car Seat - Travel Car Seat - Portable Car Booster Seat - Booster Seat for Car - Slim Foldable Narrow Design Car Seat - Perfect for Kids 4-11yrs Old - Black
Model
Cozy N Safe Augusta EZFix 4-12 Years Old (15-36kg, Group 2-3,) Multistage, Adjustable Headrest, Isofix High Back Booster, Adjustable Car Seat
Model
Jovikids ISOFIX Car Booster Seat, i-Size R129, 125-150 cm (6–12 Years), Seat Belt Guide, Lightweight, Removable/Machine-Washable Cover - Black
Model
globakids I-Size Booster Car Seat - 125-150cm,Child Booster Seat,Comfortable, Compact & Lightweight,Portable Car Seats for Kids,ECE R129,Black
Model
My Babiie MBCSB20 Child Booster Seat - ISOFIX, R129 i-Size 125-150cm (Group 3, 6 to 12 Years Approx.) Portable Kids Car Seat, Comfortable, Compact, Lightweight, Ideal for Travel - Black
Model
Graco Booster Basic R129 Backless Booster Car Seat, Lightweight at only 1.4kg, Suitable from approx. 7 to 12 years (135-150cm), Black fashion

Brand

Maxi-Cosi
Brand
BubbleBum
Brand
COZY N SAFE
Brand
Jovikids
Brand
globalkids
Brand
My Babiie
Brand
Graco

Reviews

8,310 reviews
Reviews
14,841 reviews
Reviews
702 reviews
Reviews
3,402 reviews
Reviews
591 reviews
Reviews
618 reviews
Reviews
207 reviews

Features

Comfort

9.6
Comfort
9.1
Comfort
9.9
Comfort
9.6
Comfort
9.1
Comfort
9.1
Comfort
8.9

Durability

9.1
Durability
8.6
Durability
9.9
Durability
9.9
Durability
9.4
Durability
9.3
Durability
9.1

Tech Specs

orientation

‎Forward Facing
orientation
‎Forward Facing
orientation
‎Forward Facing
orientation
Forward Facing
orientation
‎Forward Facing
orientation
‎Forward Facing
orientation
Forward Facing

product dimensions

‎59 x 45 x 62 cm; 6.75 kg
product dimensions
‎27.94 x 11.43 x 27.94 cm; 500 g
product dimensions
‎46 x 48 x 68 cm; 4.9 kg
product dimensions
37 x 44 x 23 cm 3 kg
product dimensions
‎35 x 42 x 22 cm; 1.71 kg
product dimensions
‎42 x 44 x 21 cm; 2.4 kg
product dimensions
43 x 40 x 21.8 cm 1.4 kg

item weight

‎6.75 kg
item weight
‎500 g
item weight
‎4.9 kg
item weight
3 kg
item weight
‎1.71 kg
item weight
‎2.4 kg
item weight
1.4 kg

maximum weight recommendation

‎36 Kilograms
maximum weight recommendation
‎36 Kilograms
maximum weight recommendation
‎36 Kilograms
maximum weight recommendation
36 Kilograms
maximum weight recommendation
‎1.7 Kilograms
maximum weight recommendation
‎36 Kilograms
maximum weight recommendation
36 Kilograms

material type

‎Plastic
material type
‎Durable material similar to that of life vests and other life saving products. Air bladder comprises: energy absorbing memory foam Cover around the air cushion made of energy absorbing material. Webbing, attaches two belt positioning clips which are made of high density Nylon
material type
‎Plastic
material type
Polyethylene
material type
‎Fabric
material type
‎Metal, Plastic, Fabric
material type
Polyester, Alloy Steel, Polypropylene

material composition

‎22% Steel, 60% PP, 3% ABS, 6% PA, 1% POM, 1% PC, 1% TPR, 4% EPS, 1% EPE, 1% Memory Foam
material composition
‎Seat Cushion PVC
material composition
‎100 % Polyester
material composition
PE & Knitted Cationic
material composition
‎HDPE
material composition
‎Metal, Plastic, Fabric
material composition
2.7 Steel, 91.26 plastic, 6.04 polyester

batteries required

‎No
batteries required
‎No
batteries required
‎No
batteries required
No
batteries required
‎No
batteries required
-
batteries required
No

rear facing maximum child weight

‎36 Kilograms
rear facing maximum child weight
‎100 Pounds
rear facing maximum child weight
‎36 Kilograms
rear facing maximum child weight
36 Kilograms
rear facing maximum child weight
‎36 Kilograms
rear facing maximum child weight
-
rear facing maximum child weight
-

minimum weight recommendation

-
minimum weight recommendation
‎15 Kilograms
minimum weight recommendation
‎15 Kilograms
minimum weight recommendation
15 Kilograms
minimum weight recommendation
‎48.5 Pounds
minimum weight recommendation
‎22 Kilograms
minimum weight recommendation
-

harness type

-
harness type
‎3-Point
harness type
-
harness type
3-Point Adult Belt
harness type
-
harness type
‎3-Point
harness type
3-Point

number of items

‎1
number of items
‎1
number of items
‎1
number of items
-
number of items
-
number of items
-
number of items
-

style

‎Tanza i-Size
style
‎Compact
style
-
style
-
style
-
style
-
style
R129 Midnight

maximum height recommendation

-
maximum height recommendation
‎135 Centimetres
maximum height recommendation
-
maximum height recommendation
150 Centimetres
maximum height recommendation
-
maximum height recommendation
‎150 Centimetres
maximum height recommendation
-

target gender

-
target gender
‎Unisex
target gender
‎Unisex
target gender
Unisex
target gender
-
target gender
-
target gender
-

Available On

Available On
Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.8
    1
    Maxi-Cosi

    Maxi-Cosi Tanza i-Size, High Back Booster Seat, 3.5–12 years, 100–150cm, Compact Foldable Car Seat, 10 Headrest Positions, G-CELL Side Impact Protection, Padded & Elevated Kids Car Seat, Full Black

    9.6 Comfort
    9.1 Durability

    Why we love it

    Compact and easy to transport.
    Adjustable headrest for growing children.
    Eco-friendly materials and washable cover.
  • 9.7
    2
    BubbleBum

    BubbleBum Inflatable Booster Car Seat - Travel Car Seat - Portable Car Booster Seat - Booster Seat for Car - Slim Foldable Narrow Design Car Seat - Perfect for Kids 4-11yrs Old - Black

    9.1 Comfort
    8.6 Durability

    Why we love it

    Compact design fits between car seats.
    Exceeds US and European safety standards.
    Ideal for travel and carpooling.
  • 9.6
    3
    COZY N SAFE

    Cozy N Safe Augusta EZFix 4-12 Years Old (15-36kg, Group 2-3,) Multistage, Adjustable Headrest, Isofix High Back Booster, Adjustable Car Seat

    9.9 Comfort
    9.9 Durability

    Why we love it

    Easy installation with ISOFIX connectors.
    Adjustable headrest for growing children.
    Washable covers for easy maintenance.

Our ranking system

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Features

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Consumer Reviews

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Popularity

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Value for money

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When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.