Name: Cybex Sirona G3 Plus Car Seat - Almond Beige
Brand: Cybex

What parents say

BubsNest expert analysis of 4 parenting forum discussions

“Award-winning car seat with safety and comfort, but some size/weight drawbacks”

7.8

Solid Choice

The Cybex Sirona is a well-regarded car seat that has won multiple safety and design awards. Parents highlight its comfortable padding, sleek look, and ability to rotate 360 degrees. However, some note it can be heavy and bulky, and that the rear-facing mode may not provide enough leg room for older toddlers. Overall, it seems a solid choice for families seeking a safe, long-lasting car seat, though taller or heavier children may outgrow the rear-facing use earlier than expected.

What parents love

Safety and awardsThe Sirona has earned top safety ratings and design awards, giving parents peace of mind.

Comfort and paddingParents praise the seat's plush, supportive padding that keeps children comfortable on long rides.

360-degree rotationThe ability to rotate the seat 360 degrees makes it easy to get children in and out.

Worth knowing

Rear-facing limitationsSome parents report the rear-facing mode doesn't provide enough leg room for taller toddlers.

Weight and bulkThe Sirona is described as quite heavy and bulky, which can make it difficult to move between vehicles.

ISOFIX-only installationThe Sirona can only be installed using ISOFIX, which may be an issue for some vehicles.

Best for

Families seeking a high-quality, long-lasting car seat with premium safety features
Parents who value a sleek, modern aesthetic in their baby gear

May not suit

Taller or heavier toddlers who may outgrow the rear-facing mode sooner than expected
Families who need to frequently move the car seat between vehicles

Tips from parents

Before You Buy

Check your vehicle's ISOFIX compatibility, as the Sirona cannot be installed without it.

Getting the Most Out of It

Watch the online installation videos carefully, as the seat has a few tricky setup steps.

Safety Note

Be sure to follow the rear-facing weight and height limits, as exceeding them could compromise safety.

Product details

The Cybex Sirona G3 Plus Car Seat is designed for children from early months up to around 4 years. It offers extended rear-facing travel and advanced safety engineering, providing a calm, protected space for your child to grow. The smooth 360° rotation makes everyday journeys easier, while the ergonomic design keeps your little one supported in a natural, posture-friendly position.

Designed for extended rear-facing travel
Offers advanced safety engineering
Smooth 360° rotation for easier journeys
Ergonomic design provides natural support

Specifications & features

Key features

Extended rear-facing safety up to 4 years, offering up to 50% higher safety levels compared to forward-facing travel for added reassurance on every journey
Smooth 360° rotation for effortless lifting in + out
making daily travel simpler, quicker + kinder on your back
Advanced Linear Side-Impact Protection system helps reduce collision forces by up to 25%, offering an added layer of care where it matters most
Ergonomically shaped M-position to support healthy hip + spine development, keeping your child comfortably positioned as they grow
Adjustable recline settings + modular newborn inlays (sold separately) help the seat adapt gently from early infancy through to around 4 years old
Compatible with the Base G3 for easy installation + a secure, click-in fit - supporting smooth transitions from infant seat to toddler seat