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Cybex

Cybex Sirona Gi i-Size Plus Car Seat

Name: CYBEX Sirona Gi i-Size Plus Car Seat
Brand: Cybex
Rating: 4.6 (295 reviews)

4.6 (295)on Natural Baby Shower →

The BubsNest Verdict

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.

BubsNest expert analysis of 4 parenting forum discussions

ColoursOcean Blue

£269.95

Available at

Natural Baby Shower

£269.95

Prices compared across 1 retailers · Updated 21 Jun

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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

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 Gi i-Size Plus Car Seat in Stone Grey provides safety and comfort from newborn to toddler. This award-winning car seat features:

Extended rear-facing design up to 20kg
Integrated Linear Side-impact Protection
Innovative air vents for temperature control
360° rotation for easy in/out
5 recline positions for comfort
Newborn inlay accessory available (sold separately)

Specifications & features

Specifications

ColourFog Grey

ManufacturerCybex

Material TypePlastic

Item Dimensions D X W X H71D x 44W x 75H centimetres

Number Of Height Positions12

Maximum Weight Recommendation20 Kilograms

Key features

With a height adjustable headrest, the Sirona Gi i-Size grows with your child up to 4y
Five recline positions to keep little ones comfortable
Designed for your child to sit comfortably rear-facing until 20kg
Quick + easy onboarding
Loops to keep the harness out of the way as you get your little one seated
Linear Side-impact Protection defends your little one against the force of a side impact - the energy-absorbing shell, the L.S.P. System significantly reduces the effect of impact force
Up to 50% higher safety levels
Extended rear-facing, one of the safest ways to travel in a car seat