

The Britax Romer Vario Base provides essential safety and convenience for up to four years of travel. This modular base system is designed for quick, single-click installation across multiple compatible seats. Its rotating functionality greatly simplifies securing and harnessing your child.
This versatile base supports your changing seating needs as your child grows.
Read MoreWith the VARIO BASE 5Z, you are ready for four years of convenient safety on the road. The modular base is compatible with the new BABY-SAFE PRO, the BABY-SAFE 3 i-SIZE, the BABY-SAFE CORE as well as the DUALFIX 5Z – and each of them can be installed on the base with just one click. The rotating feature allows you to turn each seat towards the car door, making it easy to place and harness your child. Additionally, the DUALFIX seat can be turned 360 degrees, allowing forward-facing travel when your child exceeds 15 months and 76 cm.
Modular Base System
The modular VARIO BASE 5Z is compatible with the new BABY-SAFE PRO, the BABY-SAFE 3 i-SIZE, the BABY-SAFE CORE and the DUALFIX 5Z.
Easy Access
The rotating feature of the base allows you to turn the seat to the car door, allowing you to easily place your child in and out of the seat.
Plenty Of Space For Little Legs
Give your child added protection in an accident: the rebound bar of the VARIO BASE 5Z helps prevent the car seat from tilting in a collision. The bar has been optimised so it's shorter and more compact to offer extra leg space - perfect for a long journey - and makes carrying and storage simple.
Adjustable Angle Of Optimisation
In cars with inclined vehicle seats, there may be a risk of your child's head tipping forward especially when they fall asleep in a car seat. With our VARIO BASE 5Z you can easily adjust the angle of the car seat to six different positions, to provide a more ergonomic yet safe position of your child during any journey and in any car.
Installed Correctly Every Time
Thanks to the audible click, you can be sure that the BABY-SAFE PRO is installed correctly every time. Additionally, a visual indicator on the release button of the base offers extra peace of mind.
Height Adjustable Support Leg
Install the VARIO BASE 5Z safely in your car using the adjustable support leg. The leg fixes to your car's floor to provide extra stability and minimise tilting movements of the car seat. And an easy-to-read indicator shows you when the support leg is positioned firmly on your vehicle’s floor, making it effortless to fit correctly.
Independent ISOFIX Connectors
Install the VARIO BASE 5Z effortlessly thanks to the ISOFIX connectors, which can be operated independently. You're fully in control, so they're fast and safe to connect without damaging your car's seats. And you're ready to get on with your day.
Installation:
i-Size
This child car seat needs to be attached to the ISOFIX anchorage points of your vehicle. ISOFIX is a standard system of connection points featured in almost all cars. This establishes a secure and firm connection between the child’s car seat and the car.
VARIO BASE 5Z specific requirements – a safe installation is completed with the use of a support leg to allow optimum stability.
Our i-Size bases will fit all i-Size approved seating positions, so please check your vehicle owner's manual for i-Size approved seating positions in your car.
ISOFIX with Support Leg
This child car seat needs to be attached to the ISOFIX anchorage points of your vehicle. ISOFIX is a standard system of connection points featured in almost all cars. This establishes a secure and firm connection between the child’s car seat and the car.
VARIO BASE 5Z specific requirements – a safe installation is completed with the use of a support leg to allow optimum stability.
Check our vehicle list or FIT FINDER® AT BRITAX.COM to see if the infant carrier base is compatible with your car.
Dimensions:
Weight: 8 kg
Height: 30 cm
Width: 44 cm
Depth: 64 cm