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Home/Products/Car Seats/ISOFIX Car Seats
Cybex Sirona G i-Size- Moon Black
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Cybex

Cybex Sirona G i-Size- Moon Black

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

£223.96

Available at

Best price
Mamas & Papas
£223.96
Bundle Baby
£334.00
£404.90-18%

Prices compared across 2 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

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 G i-Size car seat offers enhanced safety for your child. Featuring 360-degree rotation technology, this rear-facing seat provides up to 50% higher safety levels compared to forward-facing in a frontal crash.
  • Rear-facing from birth up to 105 cm (approx. 4 years)
  • 360-degree rotation for easy in and out
  • Innovative safety technology for superior protection
  • Adjustable headrest and harness
  • Removable and washable cover

Specifications & features

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