Maxi-Cosi Rock + FamilyFix One i-Size

Test year: 2018

ADAC verdict: 1,7 Good

General information:

  • Birth – 12 months | 45 – 75 cm (17.7″ – 29.5″)
  • i-Size (R-129) safety
  • airplane usage approved
  • integrated sun canopy
  • rearward-facing
  • 3-point harness is also included


  • Isofix base with support foot

Cheapest Place to Buy in several colors:


ADAC result


Good safety

  • front impact crash with very low risk
  • side impact crash with low risk
  • belting is good
  • stable position in the car

very goodoperation

  • incorrect usage is not probable at all
  • only buckle up the child
  • easy and fast installation
  • operating instructions and warnings are easy to follow
  •  lightweight

Good ergonomics

  • leg rest is good
  • good upholstery
  • convenient seating position
  • good space for the child

very good processing

  • washing machine possible
  • easily removable cover
  • workmanship is  very good

very good pollutants

  • pollution is very low



  • child has impaired view to the outside
  • large space is required in the car


Just as I wrote about the Kiddy Evoluna, this is finally another seat in which a baby can lay flat. Another huge advantage what Maxi-Cosi has, is that probably it is the type of brand that can be connected to most pushchairs – if it is a factor for you, this baby safety seat can be one of the best options for you.

The Maxi-Cosi Rock seat + FamilyFix One i-Size base is a lightweight and safe baby seat with Isofix base on which the seat can be easily and stably mounted. Even though this seat can be used with a seatbelt, you are advised to get the FamilyFix One i-Size base to achieve maximum protection and click-and-go system by using the isofix installation.  Together with the Isofix base, if you have a connection in your car, this seat is among the best solutions that you can make. The base also has visual and audible confirmation when you install the seat properly to minimize wrong installation.

There are two penlights included to the base which can easily be replaced when neccessary. A signal flash switches on when the energy is below 30 percent.

The anchorage of the FamilyFix One i-Size base can be used with the Rock and Pearl One i-Size car seats, this way the base is suitable for the child up to 4 years.

Maxi-Cosi Rock has a material that is developed to absorb the impact of a possible crash in addition to its side protection that is added to the top side wings. It also has baby-hug inlay to secure and comfort newborn babies and is advisable to be used up strongly recommended to be used up to 60 cm.

Another great advantage of the seat is that you can remove the cover without having to dismantle the harness and you can put it right away to your washing machine.

The seat is approved to be used on certain airplanes, but make sure to consult the airline before booking if this type of seat is allowed on the chosen flight.

Additionally, you can also buy matching Maxi-Cosi footmuff, summer cover, rain cover and mosquito net.

According to the manufacturer, the infant carrier should not be used for more than five years. Do not use on passenger seats with front airbag!

I hope you liked this review and if you have any question about the Maxi-Cosi Rock + FamilyFix One i-Size seat or want to leave your own personal experience, leave a comment below.

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