10 Best Group 3 Car Booster Seats Of 2026
Group 3 Car Booster Seats — Reviews, Recommendations & Updated Buying Guide September 2026
The Moon Brand Kido Baby/Kids
おすすめの理由
Jovikids ISOFIX Kids Booster Car
おすすめの理由
Jovikids Tammy 3in1 Highback
おすすめの理由
MOON Kido Baby Booster Car Seat
おすすめの理由
Jovikids I-Size Booster Seat for
おすすめの理由
Jovikids Tammy 3in1 Highback
おすすめの理由
Jovikids Rober i-Size Booster Seat
おすすめの理由
Jovikids Yoho I-Size Booster Seat
おすすめの理由
Chicco Quasar i-Size Child Car
おすすめの理由
New mifold Comfort Grab-and-go Car
おすすめの理由
クイックピック
10 Best Group 3 Car Booster Seats Of 2026
クイックピック
The Moon Brand Kido Baby/Kids Lightweight Travel Booster Car Seat Group 3 Universal Fix Extra Large Seat Backless Belt Positioning Suitable From 3 Years To 12 Years From 15 - 36 Kg - Brown
Jovikids ISOFIX Kids Booster Car Seat, Portable & Compact, Black & Grey | I-Size ECE R129 Certified with ISOFIX, for children 125–150cm (6–12 years), ensuring secure, easy installation.
Jovikids Tammy 3in1 Highback Booster Car Seat (Group 1/2/3, 9M-12Y), Convertible to Booster Seat, Forward-Facing Seat w/Adjustable Headrest, 5-point Harness and 3-Point Seat Belt, Baby Travel Carseat
MOON Kido Baby Booster Car Seat with ISOFIX.Cup Holder.Group 3 (15-36 kg).Extra large seat.Soft fabric.Equipped with Armrests,Backless Belt-Positioning Car Booster Seat,Universally Fit -Grey
Jovikids I-Size Booster Seat for Car with ISOFIX, 125-150cm (Group 2/3, 6-12 Years), Portable Car Seats for Kids, Comfortable, Compact, Convenient for Everyday Use, Great for Travel, ECE R129, Blue
Jovikids Tammy 3in1 Highback Booster Car Seat (Group 1/2/3, 9M-12Y), Convertible to Booster Seat, Forward-Facing Seat w/Adjustable Headrest, 5-point Harness and 3-Point Seat Belt, Baby Travel - Pink
Jovikids Rober i-Size Booster Seat with ISOFIX, Suitable for Kids 100-150cm 3Y-12Y, Adjustbale Height and Width, Cabin Size Portable Toddler Car Seat for Travel, Compact & Folding, ECE R129, Black
Jovikids Yoho I-Size Booster Seat (Group 2/3, 6-12 Years), Portable Car Seats for Kids, Comfortable, Compact, Convenient for Everyday Use, Travel Car seat, Grey
Chicco Quasar i-Size Child Car Seat 7-12 Years (126-150cm), Weight 23-36kg, Group 3, Easy to Install with 3-Point Vehicle Belt, Padded Armrests and Comfortable Seat, Grey
New mifold Comfort Grab-and-go Car Booster Seat- 3X Thicker Cushion! Compact and Portable for Every Day, Carpooling, Travel, etc. Compact for Every Day, Comfortable for Every Adventure, Ocean Blue
購入ガイド: Group 3 Car Booster Seats
📋 目次
1What weight range is suitable for a Group 3 car booster seat?
Group 3 booster seats are designed for children weighing between 22kg (49lbs) and 36kg (79lbs), typically aged 6 to 12 years. They are used once the child has outgrown a harness-style seat but still needs extra height to ensure the seat belt fits properly across the chest and hips.
2What type of seat belt compatibility should I look for?
Look for a booster seat that works with both lap and three-point seat belts. Some models are designed for use with lap belts only, which may not be suitable for all vehicles. A three-point compatible seat offers more versatility and safer positioning in most cars.
3What materials are best for durability and comfort?
High-quality booster seats often use reinforced plastic for the base and padded, breathable fabric for the seat cover. Look for materials that are easy to clean and resistant to wear, especially if the seat will be used frequently or by multiple children.
4Is an adjustable headrest worth the extra cost?
Yes, an adjustable headrest can provide better support as the child grows, ensuring the seat belt sits correctly across the collarbone and not on the neck. This feature is especially useful for older children who may outgrow a fixed headrest within a year.
5What are common mistakes to avoid when installing a Group 3 booster seat?
Avoid placing the seat in the front passenger seat if there’s an active airbag, as it can be dangerous. Also, ensure the seat belt is routed correctly through the designated slots on the booster and that the seat is securely fastened to the vehicle’s seat base for stability during travel.
選び方について
編集者は製品を試し、それについて書くことを心から愛するメンバーです。各製品の実際の使いやすさと強みを比較し、最も重要な点を独自の「おすすめの理由」にまとめています。購入前に、大切なポイントがひと目でわかります。