Skip advert
Advertisement

Graco Affix i-Size R129 booster car seat review

The Graco Affix i-Size R129 is a great all round booster car seat at an even greater price

Verdict

Graco’s first highback booster with Isofix connectors is a hit. It doesn’t quite have the premium feel of some rivals, but its price tag more than makes up for it. It’s a quality seat that's comfortable and safe. 

  • Price: Around £65
  • Contact: Graco

When searching for child booster seats, it can be tempting to look at the price tag before anything else. Let’s be honest, having children isn’t cheap, so saving the pennies where you can becomes vital. Head to the website of any major child car seat retailer and sort by price, and it’s likely the Graco Affix i-Size R129 will be one of the first ones you see, but does it offer value for money?

Advertisement - Article continues below

Graco is a household name in this area, producing everything from car seats, carrycots, strollers and more, but the Affix i-Size R129 sees it step into new ground. It’s the brand’s first ever highback booster seat to feature Isofix connectors - a staple in more expensive seats, but often the first thing to get the chop on cheaper models. It makes installation incredibly easy and ensures the seat stays in place when the little ones aren’t sat in the car. The seat is essentially the older Affix R44 that’s been adapted to R129 safety standards, meaning improved head and neck protection and compatibility with any i-Size approved car.  

During our two-week test, we found the Affix i-Size easy to use and our little tester was very happy. She never complained about being uncomfortable on longer trips, and loved the retractable cup holders on each side - allowing her to keep her drink close by.

Yes the material isn’t quite as premium as more expensive models, but some of these rivals can cost almost three times the price. That’s a lot more to pay for a seat that essentially does the same job. There’s plenty of ventilation to keep your child cool whatever the weather and the adjustable headrest allows the seat to grow with your child right up until they are 12 years old (or 150cm).

The only real niggle we had during our time with the seat was the seatbelt regularly coming out from the holder that guides the height. It needed to be reattached almost each time we clipped it in, but it’s easy to do and is a minor inconvenience. It certainly isn’t a big enough issue to cause any problems - and, if it does, simply just take another look at the price tag.

Buy the Graco Affix i-Size R129 from Amazon

Skip advert
Advertisement
Web producer

Pete has over 20 years journalistic experience. Having previously worked for Ladbrokes and the Racing Post, he switched from sports writing to automotive journalism when joining Auto Express in 2015.

New & used car deals

Renault Clio

Renault Clio

RRP £16,175Avg. savings £3,411 off RRP*Used from £7,500
Audi A3

Audi A3

RRP £26,310Avg. savings £3,434 off RRP*Used from £10,080
Skoda Kodiaq

Skoda Kodiaq

RRP £39,045Avg. savings £8,315 off RRP*Used from £26,640
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,050Avg. savings £3,637 off RRP*Used from £24,990
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New top-spec Skoda Karoq Sportline Black Edition revealed
New Skoda Karoq Sportline Black Edition - front static

New top-spec Skoda Karoq Sportline Black Edition revealed

Czech brand’s Karoq range-topper has plenty of kit at a very reasonable price
News
4 Sep 2026
Which electric car’s batteries last longest? Global EV study uncovers the truth
Nissan Leaf - front cornering

Which electric car’s batteries last longest? Global EV study uncovers the truth

EV batteries are lasting longer than you might have thought, but charging habits and capacity can have an impact on a battery’s State of Health
News
4 Sep 2026
Axe hangs over SEAT as VW Group bets on Cupra
SEAT Leon - front tracking

Axe hangs over SEAT as VW Group bets on Cupra

The Spanish brand, famous for the Ibiza supermini and founding the sporty Cupra badge, could be “gradually phased out” after 2030
News
4 Sep 2026