Maxi-Cosi RodiFix M i-Size, High Back Booster Seat, 3.5 – 12 years, 100 – 150cm, Kids Car Seat, G-CELL Side Impact Protection, Adjustable Height, Quick & Easy Buckle Up, ISOFIX…

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Rated 4.91 out of 5 based on 11 customer ratings
(11 customer reviews)

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Maxi-Cosi RodiFix M i-Size, High Back Booster Seat, 3.5 - 12 years, 100 - 150cm, Kids Car Seat, G-CELL Side Impact Protection, Adjustable Height, Quick &...
£79.99
£99.99
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Amazon.co.uk
2 new from £79.99
Amazon price updated: July 18, 2025 8:46 am
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July 15, 2025
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July 18, 2025
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Last updated on July 18, 2025 8:46 am
  • GROUP 2/3 CAR SEAT: offering years of safety, the Rodifix M i-Size car seat is built to last for a long-time: from 100–150cm (approx. 15–36kg), and from 3.5 up to 12 years
  • I-SIZE SAFETY: this child car seat is tested and designed according to the highest EU safety standards (ECE R129) and is equipped with ISOFIX connectors, making it super-quick and easy to install in the car
  • G-CELL SIDE IMPACT PROTECTION: this integrated safety system provides expert protection from side impact as it spreads the forces of an impact away from your child reducing injury to the head, neck and shoulders
  • ADJUSTABLE HEADREST: the child seat offers an adjustable design that alters in height, so your child will always be safe and comfortable – simply press a button on the back of the headrest to adjust
  • QUICK & EASY BUCKLE UP: with no bulky armrests to get in the way, buckling-up the RodiFix M i-Size is quick and hassle-free – independent children can easily buckle up themselves
  • EXTRA COMFORT: with its adjustable headrest, padded backrest and cushioned seat, this car booster seat offers a comfortable fit, whether your little one’s 3.5 or 12 years old
  • 100% RECYCLED FABRICS: the sustainable car seat cover is designed with Eco Care, which means the cover consists of 100% recycled fabrics – it can easily be removed and is machine washable
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11 reviews for Maxi-Cosi RodiFix M i-Size, High Back Booster Seat, 3.5 – 12 years, 100 – 150cm, Kids Car Seat, G-CELL Side Impact Protection, Adjustable Height, Quick & Easy Buckle Up, ISOFIX…

  1. Rated 5 out of 5

    mausisanne

    Estábamos buscando una silla para coche cómoda, segura y que ocupase solo un asiento para poder llevar otras sillas y hemos encontrado la solución con la RodiFix M i-Size.

    Esta indicada a partir de 100cm y hasta los 150cm, (aproximadamente desde los 3 años y medio y hasta los 12 años). Es muy fácil de adaptar a cualquier altura solo pulsando el botón de la parte posterior del reposacabezas/respaldo y deslizarlo hacia arriba para ajustarlo correctamente.

    Es muy cómoda, el asiento es amplio y tiene dos posiciones de reclinado, que se adaptan muy bien al coche. El reposacabezas es ajustable y acolchado y el respaldo y el asiento son totalmente acolchados. Los textiles están fabricados con tejidos 100% reciclados. Y son lavables en la lavadora.

    La instalación es muy rápida y sencilla gracias a los conectores ISOFIX. Es muy ligera, solo pesa 5’7kg, lo que te permite cambiarla de coche muy fácilmente, como es nuestro caso. Además de tamaño es muy reducida, ocupa solo un asiento, con la posibilidad de poder instalar 3 sillas. Nosotros tenemos instaladas dos sillas y aún puede ir un pasajero en la parte de atrás cómodamente.

    Tiene integrada protección contra impactos laterales G-CELL, diseñada específicamente para alejar del niño las fuerzas de un impacto y reducir las lesiones, especialmente en la cabeza, el cuello y los hombros.

    De precio me parece perfecta, tiene un precio muy ajustado para la gran calidad de la silla y la garantía y confianza que te ofrece una marca de prestigio como Maxi-Cosi. Y lo más importante cumple con la normativa europea R129 i-Size.

  2. Rated 5 out of 5

    jadels

    The Maxi-Cosi RodiFix M i-Size Child Car Seat in Basic Black is an excellent choice for parents seeking a combination of safety, comfort, and ease of use for their child. This car seat is designed for children from approximately 3.5 to 12 years old (100-150 cm) and adheres to the latest i-Size (R129) safety standards, offering enhanced side-impact protection. The sleek, minimalist design in Basic Black complements any vehicle interior, while the seat’s ergonomic padding ensures a comfortable ride for your child. Installation is straightforward with the ISOFIX connectors, providing a secure and stable fit.

    Additionally, the adjustable headrest and reclining backrest allow the seat to grow with your child, ensuring long-term usability.

    Overall, the Maxi-Cosi RodiFix M i-Size is a reliable and stylish choice for ensuring your child’s safety on the road.

    My son loves his new seat and finds it very comfortable.

  3. Rated 5 out of 5

    PictureForAPound

    Fotelik zakupiłam ponad miesiąc temu, jestem z niego bardzo zadowolona. Dzięki isofix montaż i demontaż to sekunda, przełożenie do innego samochodu już nie jest dla mnie wyzwaniem. W foteliku RodiFix R i-Size zastosowano system ClimaFlow, który zapewnia doskonałą cyrkulację powietrza, by dziecko miało zapewniony komfort termiczny Zgodność z europejską normą i-Size potwierdza wysoki poziom bezpieczeństwa fotelika Zagłówek jest miękki i regulowany dzięki czemu bardziej dostosowany do dziecka. Technologia G-CELL z systemem ochrony bocznej maksymalizuje bezpieczeństwo dziecka. Do zakupu fotelika przykładam ogromną wage i zawsze czytam wszystkie informacje o nim zanim wsadze do niego moje dziecko. Jestem zadowolona z tego fotelika, spełnia wszystkie moje oczekiwania i mój syn bardzo dobrze czuje się w nim. Łatwy w czyszczeniu. Dobrze siedzi w aucie. Polecam !

  4. Rated 5 out of 5

    Iulian Romedea

    I change so many car seats because they were all soo heavy and bulky but this one is so easy to Assemble and to use. My son Says that he is more comfortable and you can clearly see the quality of this product . The size is just perfect a so easy to adjust as your baby is growing. The stability is just perfect for a very active child and you save some space in the car as well. Highly recommend this one if you are looking for a quick, easy to use and safe . Go for it !

  5. Rated 5 out of 5

    Iulian Romedea

    My daughter is nearly 3 and a half and was complaining in her old car seat that she was uncomfortable and didn’t have enough room. I decided to buy this one and wow what a difference it has made. Not only do we have more room in the back of the car, she absolutely loves it. She says it’s really comfortable and she likes having the big seat belt around her and she says she has more space. She is a lot happier and it makes longer journeys so much more pleasurable. When the seat arrived I put it together and it was really easy. The one thing I would say is when you connect the seat to the back it’s wobbly and I was worried I had broken it but when you put it in the car it was fine and just adjusted to the car back seat. With the isofix it feels so safe and secure. Overall my daughter and I are chuffed and I am really happy we wont have to buy another car seat now as this one will be perfect until she doesn’t need one anymore. Highly recommend!

  6. Rated 5 out of 5

    Patrycja Mazur

    Smidig produkt, bra kvalitet, lätt

  7. Rated 5 out of 5

    mausisanne

    We hebben deze autostoel gekozen voor onze dochter van 5 die 120cm lang is. We merkten al een tijdje dat haar vorige autostoel, een maxi cosi groep 1-2-3 stoel nog wel veilig was maar niet meer comfortabel was. Omdat haar vorige autostoel ook voor babies geschikt was, zat ze behoorlijk onderuit en was de stoel veel dikker bij de rug dan nodig. Dit ging dan ten koste van de beenruimte. We hebben geen kleine auto maar ze zat alsnog met haar benen tegen de stoel ervoor te drukken. Ze zat zoveel comfortabeler als ze een keer op een kort ritje op een stoelverhoger mocht dat we haar dat ook wel gunde. Maar we wilde qua veiligheid nog wel dat ze bescherming bij haar hoofd had. Voor dit geval was deze autostoel perfect. Hij voelt super degelijk aan, is totaal niet dik bij het zitvlak en bij de rug waardoor ze veel meer ruimte heeft. En de gordel begeleider zorgen ervoor dat je zeker weet dat die goed lopen voor haar lengte. De stoel is verder makkelijk in de isofix te klikken en in hoogte te verstellen. Sinds ze in deze stoel zit vraagt ze ook niet meer of ze op een stoelverhoger mag. De prijs is redelijk flink als je het vergelijkt met een basis stoelverhoger, maar qua veiligheid is dit het wat ons betreft meer dan waard.

  8. Rated 5 out of 5

    ADotD

    I recently upgraded to the Maxi-Cosi RodiFix M i-Size for my 4-year-old, and I couldn’t be more impressed. This car seat excels in comfort, with features like cozy armrests and a spacious design that my child loves. Safety is paramount, and the inclusion of Isofix adds an extra layer of security, alleviating my initial concerns about transitioning from a 5-point to a 3-point seatbelt. The user-friendly installation and ease of use, coupled with the stylish and sturdy design, make this car seat a standout choice. The fabric looks luxurious, and the overall build quality reaffirms my trust in the Maxi-Cosi brand.

    The RodiFix M i-Size also offers excellent value for money. It adjusts as the child grows, ensuring long-term use without compromising on safety or comfort. This seat has made our journeys more enjoyable and stress-free, with my daughter able to buckle herself in and enjoy long naps on the go. Whether for daily commutes or longer trips, this car seat provides peace of mind and a touch of style. If you’re seeking a reliable, comfortable, and affordable car seat, the Maxi-Cosi RodiFix M i-Size is an exceptional choice that I highly recommend.

  9. Rated 5 out of 5

    jadels

    Als Mutter eines aktiven Kleinkindes habe ich schon einige Autositze ausprobiert, aber der Maxi-Cosi Rodifix M i-Size Child Car Seat hat mich wirklich beeindruckt. Dieser Sitz ist nicht nur bequem für mein Kind, sondern bietet auch ein hohes Maß an Sicherheit, was für mich als Mutter oberste Priorität hat.

    Die Installation war ein Kinderspiel. Dank des ISOFIX-Systems konnte ich den Kindersitz sicher und fest im Auto befestigen – kein Verrutschen oder Wackeln. Dies gibt mir ein beruhigendes Gefühl, denn ich weiß, dass mein Kind gut geschützt ist, selbst bei plötzlichen Bremsmanövern oder Unfällen.

    Der Rodifix M i-Size bietet auch eine hervorragende Sitzposition. Das verstellbare Kopf- und Rückenpolster sorgt für eine ergonomische Haltung meines Kindes während der Fahrt. Ich bemerke, dass mein Kind weniger müde wirkt und sich insgesamt wohler fühlt. Die Polsterung ist weich und atmungsaktiv, was gerade bei längeren Fahrten von Vorteil ist.

    Ein weiteres Highlight dieses Kindersitzes ist die wunderbare Anpassungsfähigkeit. Mein Kind wächst zwar schnell, aber der Rodifix M i-Size wächst mit ihm mit. Die Höhenverstellbarkeit ermöglicht es mir, den Sitz perfekt an die Größe meines Kindes anzupassen. Das ist nicht nur praktisch, sondern spart auch Geld, da ich keinen neuen Kindersitz kaufen muss, wenn mein Kind größer wird.

    Die Sicherheitsmerkmale des Rodifix M i-Size haben mich wirklich überzeugt. Neben dem stabilen ISOFIX-System bietet der Sitz auch Seitenaufprallschutz, der bei einem Unfall den Kopf, den Nacken und die Wirbelsäule meines Kindes zusätzlich schützt. Die Sicherheitsgurte sind gut gepolstert und leicht einzustellen. Ich habe das Gefühl, dass mein Kind rundum geschützt ist.

    Alles in allem kann ich den Maxi-Cosi Rodifix M i-Size Child Car Seat wärmstens empfehlen. Dieser Kindersitz bietet nicht nur Komfort und Anpassungsfähigkeit, sondern vor allem ein hohes Maß an Sicherheit. Als Mutter weiß ich, dass ich meinem Kind mit diesem Sitz die bestmögliche Fahrt bieten kann – und das ist unbezahlbar.

  10. Rated 4 out of 5

    Amy

    This car seat is fab. It was so simple to install to the isofix in our car, and just as simple to remove. The fit was perfect! The seat seems very sturdy and comfortable, no complaints from my 6 yr old. Trusting the information of safety but worth doing your own research if you have any doubts. Def value for money and lasts right up until they no longer need a seat.

  11. Rated 5 out of 5

    Kathryn B

    I recently upgraded my 4-year-old’s car seat to the Maxi-Cosi RodiFix M i-Size, and I couldn’t be more impressed. Transitioning from a 5-point to a 3-point seatbelt had me worried, but this car seat not only alleviated my concerns but surpassed my expectations in several key areas.

    Comfort Beyond Compare:
    The RodiFix M i-Size doesn’t compromise on comfort. My child adores the armrests, and the fact that he’s fallen asleep in it twice speaks volumes about its coziness. Long journeys are now a breeze, thanks to the superior comfort this car seat provides.

    Safety First and Foremost:
    Safety is a top priority for any parent, and the RodiFix M i-Size delivers. The inclusion of Isofix adds an extra layer of security, making me feel confident and at ease during every drive. Transitioning from a 5-point harness was a concern, but the safety features in this car seat have effectively reduced my fears.

    User-Friendly Excellence:
    Installing and using the car seat is a breeze. The straightforward design and user-friendly features make it easy for busy parents. In a world where convenience matters, the RodiFix M i-Size stands out.

    Stylish and Sturdy:
    Not only is this car seat practical, but it also brings a touch of style to the backseat. Its chic design doesn’t compromise on durability, making it a stylish and hard-wearing choice for parents who want the best of both worlds.

    Trusted Maxi-Cosi Quality:
    As a parent, I’ve always trusted the Maxi-Cosi brand, and the RodiFix M i-Size reaffirms that trust. The build quality, safety features, and overall performance are a testament to the brand’s commitment to excellence.

    Affordable Excellence:
    For such a high-quality car seat, the price is just right. It’s a perfect investment considering the comfort, safety, and durability it offers. This car seat is built to last, providing excellent value for the price.

    In conclusion, the Maxi-Cosi RodiFix M i-Size has become an integral part of our family’s journeys. It not only ensures the safety and comfort of my child but also adds a touch of style to our car. If you’re a parent looking for a reliable, comfortable, and stylish car seat that won’t break the bank, the RodiFix M i-Size is the perfect choice. It’s a purchase that promises peace of mind and happy travels for years to come.

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