Guide to Cybex Z range: Cloud Z2, Sirona Z2 and Base Z2

Choosing your baby’s first car seat can feel quite daunting. There’s so much information to take in and absorb and, because your little one’s safety is your number one priority, you want to feel confident you’re making the right choice.

In the following guide, we provide an overview of the Cybex Z Line Modular System, one of the safest choices for transporting your baby by car. 

A system combining 1 base and 2 seats, Cloud Z allows you to use the same base from birth to approximately 4 years. Z has the highest safety ratings, excellent reviews, and is designed with unique smart technology while still being simple and easy to use.

Cybex Cloud Z2

The Cybex Cloud Z2 i-Size car seat comes under the new R129 i-size regulation meaning it follows the safest standard for new car seats. It has an optimised Linear Side-impact Protection (L.S.P) system, which significantly increases your child’s safety in a side-impact collision. 

It’s designed for babies aged from birth to approximately 18 months or more specifically, a height of 45cm-87cm. It can hold a maximum weight of 13 kg.

What makes Cybex Cloud Z2 different? 

One of the reasons Cloud Z is so popular is due to its unique ergonomic lie-flat position that can be used outside of the car. This allows you to lay your baby flat on a pushchair chassis without the need for a carrycot.
This can make life much easier and convenient when struggling for space in the car boot, or if you simply find yourself out for longer than expected without your carrycot. 

The Cloud Z lets you effortlessly move your little one from car to pram chassis, keeping them comfortable and secure at all times.

Additionally, when the Cloud Z car seat is combined with the Cybex Z base, it can be rotated towards the car door for ease of fitting and securing your baby in the car.

The Cybex Cloud Z is available in 6 different seat fabric ranges:

  • Cybex Cloud Z 
  • Cybex Cloud Z Plus 
  • Cybex Cloud Z Sensorsafe
  • Cybex Cloud Z Plus Sensorsafe
  • Cybex Cloud Z Fashion collections
  • Cybex Cloud Z Designer Collections by Karolina Kurkova and Ferrari

Cybex Cloud Z2 additional features

  • XXL fold-away sun canopy with UPF50+
  • Adjustable headrest
  • Linear Side-Impact Protection
  • Sensorsafe Smart Technology (purchased separately unless stated otherwise)
  • Swivel Z Base (purchased separately)

You can check the Cloud Z compatibility with your car here.

Cybex Sirona Z2 

Similarly to Cloud Z, the Cybex Sirona Z2 comes under the R129 i-Size regulation, so is also tested to the latest standards and features the Linear Side-impact Protection System.

It’s designed for babies from birth to approx 4 years or, more specifically, heights of 45cm-105cm and can take a maximum weight of 18 kg.

While the Cybex Sirona Z is suitable for use from birth it cannot be connected to any pushchair chassis, meaning it’s not suitable as a travel system. This removes the convenience of being able to transfer your baby from car to pushchair frame without waking or disturbing him.

However, the Sirona Z car seat does rotate, making it easier to place your baby in and out of the car while taking some strain from your back, especially as your little one transitions to the toddler years.

The Sirona Z is both rearward facing and forward facing but as it is an i-Size car seat, your baby must stay rearward facing until at least 15 months of age. It's also equipped with Driving Direction Control D.D.C, which prevents any misuse of the forward-facing position. In reality, this means it will not allow the seat to fully rotate forward until the harness is set to a minimum of 76cm (the approx height of a 15-month-old).

The Sirona Z cannot be used without a car seat base, unlike the Cloud Z car seat which can be fitted with a seat belt (although this means it’s not i-size compliant). 

The Cybex Sirona Z is available in 5 different seat fabric ranges:

  • Cybex Sirona Z 
  • Cybex Sirona Z Plus 
  • Cybex Sirona Z Sensorsafe
  • Cybex Sirona Z Plus Sensorsafe
  • Cybex Sirona Z Designer Collections by Ferrari

Cybex Sirona Z additional features

  • Linear Side-impact Protection
  • Rear-facing car seat
  • Height adjustable headrest
  • One-hand recline and rotation function
  • Rotating seat

You can check the Cybex Sirona Z compatibility with your car here.

Cybex base Z2

The Cybex base Z2 is a reliable, secure car seat base for the new Z Line range.

It includes an innovative rotating function, not only for the second stage seat but for the infant carrier too. This is a huge breakthrough in the infant car seat industry, as it offers parents the best of both worlds. Being able to detach your baby’s seat combined with the convenience of a rotating base for easy installation in and out of the car is hugely beneficial and a key reason why Cloud Z car seat bases are so popular.

What makes the Cybex Z base even more appealing is it can be used until your child reaches 105cm tall, regardless of which way you use the seats. 


SensorSafe is another car seat safety advancement from Cybex. It involves connecting to your smartphone and once set up can alert you to the following risks and dangers:

  • The car temperature being too high.
  • The harness being unbuckled
  • Your child left unattended.
  • Your child being seated for too long

You can read more about SensorSafe here.

At Little Angels Prams we offer unpressured, expert baby car seat advice online, in our stores or over the telephone. Just contact us here or on 01159 305772 with your baby and toddler car seats and base questions and we’ll be happy to help.