Catalog   /   Kids & Toys   /   Kid's Room   /   Car Seats   /   Cybex

Cybex Sirona G3 Plus i-Size

Photos - Car Seat Cybex Sirona G3 Plus i-Size
Videos 6Photos 32
Compare prices 4 →
When you make a purchase through links on our site, we may receive a affiliate commission.
 £211.99  £211.99
 £211.99  £233.99
add to listmy lists
Cybex Sirona G3 Plus i-Size
Colour
Weight group
0+ (0 – 13 kg)
1 (9 – 18 kg)
i-Size
Age range
1 – 12 months
8 – 48 months
Recommended height
61 – 105 cm
Installation
seat belt
ISOFIX
Installation
rear facing
Adjustments
backrest tilt
headrest height
belt height
Equipment
no iSOFIX base
removable cover
anatomical cushion
Additional side protection
Harness type
5-point
Material
polyester
Country of origin
Germany
Official Website
cybex-online.com
Added to E-Catalog
August 2026
P/N
526001317

526001321

526001325

More
526001329

526001333

Plus Line models feature a special mesh fabric that is six times more breathable than standard materials. 360° rotation capability (only with an ISOFIX base). Certified by the AGR Institute for Spinal Health.
The 360° rotation function is only available with an ISOFIX base. The base is not included and must be purchased separately. The car seat is compatible with Base G3 and Base G bases.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
How to Choose a Child Car Seat: Height, Safety Standards, and InstallationWe explain how to choose a child car seat suitable for your child’s age and what to consider when buying one.

Buy Cybex Sirona G3 Plus i-Size

When you make a purchase through links on our site, we may receive a affiliate commission.

Cybex Sirona G3 I-size Plus Car Seat 526001333

A rear-facing car seat designed for protection, the Sirona G3 car seat delivers 50% higher safety than a conventional forward-facing seat (based on internal testing). 360° rotation makes getting your child in and out easy. Rear-facing travel made simple. The CYBEX Sirona G3 car seat delivers up to 50% higher safety levels for your child compared to... morea conventional forward-facing seat (based on internal testing). 360° rotation makes getting your child in and out easier by positioning them at a much more manageable angle. Specially designed to provide an ergonomic sitting position, the car seat keeps your child's legs and hips in the posture-friendly M-position, aiding their development as they grow. Activating the advanced Linear Side-Impact Protection System adds 25% more protection in a side collision (based on internal testing). And as a member of the Modular G3 family, the Sirona G3 fits onto the same base unit as the Cloud G3 infant car seat, part of a secure solution for the first four years.Features: Up to 50% Higher Safety Levels:Rear-facing car seat:- Children must travel in a rear-facing position until they are 15 months old, and ideally up until they are 4. When used rear-facing, the Sirona G3 delivers up to 50% better protection compared to a conventional forward-facing seat (based on internal testing). In a frontal collision, the seat's padded shell absorbs and distributes impact force while holding the child close, limiting motion and reducing strain on the neck.Easy On and Off-boarding:360° rotation:- A 360° rotation mechanism makes it so easy to get your child in just the right position to get them in or out of the car, even when the car seat is reclined. Much quicker and much better for your back.25% More Side Protection:Advanced Linear Side-Impact Protection System (L.S.P.):- When activated, advanced Linear Side-impact Protection combined with an energy-absorbing shell and a specially designed headrest gives your child 25% more protection in a side collision (based on internal testing). Advanced L.S.P. Systems open automatically when taken out of the box, one less thing to worry about when setting the car seat up. If space is limited in the car it can easily be folded away.One Base – Two Seats: Designed to Cover Your First 4 Years:Modular system:- As part of the Modular G3 Family, both the Cloud G3 infant car seat and the Sirona G3 toddler car seat fit the Base G3 and Base G. Once your child has outgrown their Cloud car seat the follow-on car seat Sirona G3 can simply be installed with just one click. Secured by ISOFIX connectors and a load leg, the base provides a user-friendly and safe foundation for the first 4 years.Guaranteed Comfort & Convenience for All:Multiple recline positions:- As your child grows, you´ll always be able to find the perfect traveling position. 5 different recline levels, in both front and rear-facing directions, are specially designed to provide a comfortable, ergonomic position for mid-trip naps
KidINN
Delivery: in United Kingdom
Report
£211.99

Cybex Sirona G3 I-size Plus Car Seat 526001321

A rear-facing car seat designed for protection, the Sirona G3 car seat delivers 50% higher safety than a conventional forward-facing seat (based on internal testing). 360° rotation makes getting your child in and out easy. Rear-facing travel made simple. The CYBEX Sirona G3 car seat delivers up to 50% higher safety levels for your child compared to... morea conventional forward-facing seat (based on internal testing). 360° rotation makes getting your child in and out easier by positioning them at a much more manageable angle. Specially designed to provide an ergonomic sitting position, the car seat keeps your child's legs and hips in the posture-friendly M-position, aiding their development as they grow. Activating the advanced Linear Side-Impact Protection System adds 25% more protection in a side collision (based on internal testing). And as a member of the Modular G3 family, the Sirona G3 fits onto the same base unit as the Cloud G3 infant car seat, part of a secure solution for the first four years.Features: Up to 50% Higher Safety Levels:Rear-facing car seat:- Children must travel in a rear-facing position until they are 15 months old, and ideally up until they are 4. When used rear-facing, the Sirona G3 delivers up to 50% better protection compared to a conventional forward-facing seat (based on internal testing). In a frontal collision, the seat's padded shell absorbs and distributes impact force while holding the child close, limiting motion and reducing strain on the neck.Easy On and Off-boarding:360° rotation:- A 360° rotation mechanism makes it so easy to get your child in just the right position to get them in or out of the car, even when the car seat is reclined. Much quicker and much better for your back.25% More Side Protection:Advanced Linear Side-Impact Protection System (L.S.P.):- When activated, advanced Linear Side-impact Protection combined with an energy-absorbing shell and a specially designed headrest gives your child 25% more protection in a side collision (based on internal testing). Advanced L.S.P. Systems open automatically when taken out of the box, one less thing to worry about when setting the car seat up. If space is limited in the car it can easily be folded away.One Base – Two Seats: Designed to Cover Your First 4 Years:Modular system:- As part of the Modular G3 Family, both the Cloud G3 infant car seat and the Sirona G3 toddler car seat fit the Base G3 and Base G. Once your child has outgrown their Cloud car seat the follow-on car seat Sirona G3 can simply be installed with just one click. Secured by ISOFIX connectors and a load leg, the base provides a user-friendly and safe foundation for the first 4 years.Guaranteed Comfort & Convenience for All:Multiple recline positions:- As your child grows, you´ll always be able to find the perfect traveling position. 5 different recline levels, in both front and rear-facing directions, are specially designed to provide a comfortable, ergonomic position for mid-trip naps
KidINN
Delivery: in United Kingdom
Report
£211.99

Cybex Sirona G3 I-size Plus Car Seat 526001325

A rear-facing car seat designed for protection, the Sirona G3 car seat delivers 50% higher safety than a conventional forward-facing seat (based on internal testing). 360° rotation makes getting your child in and out easy. Rear-facing travel made simple. The CYBEX Sirona G3 car seat delivers up to 50% higher safety levels for your child compared to... morea conventional forward-facing seat (based on internal testing). 360° rotation makes getting your child in and out easier by positioning them at a much more manageable angle. Specially designed to provide an ergonomic sitting position, the car seat keeps your child's legs and hips in the posture-friendly M-position, aiding their development as they grow. Activating the advanced Linear Side-Impact Protection System adds 25% more protection in a side collision (based on internal testing). And as a member of the Modular G3 family, the Sirona G3 fits onto the same base unit as the Cloud G3 infant car seat, part of a secure solution for the first four years.Features: Up to 50% Higher Safety Levels:Rear-facing car seat:- Children must travel in a rear-facing position until they are 15 months old, and ideally up until they are 4. When used rear-facing, the Sirona G3 delivers up to 50% better protection compared to a conventional forward-facing seat (based on internal testing). In a frontal collision, the seat's padded shell absorbs and distributes impact force while holding the child close, limiting motion and reducing strain on the neck.Easy On and Off-boarding:360° rotation:- A 360° rotation mechanism makes it so easy to get your child in just the right position to get them in or out of the car, even when the car seat is reclined. Much quicker and much better for your back.25% More Side Protection:Advanced Linear Side-Impact Protection System (L.S.P.):- When activated, advanced Linear Side-impact Protection combined with an energy-absorbing shell and a specially designed headrest gives your child 25% more protection in a side collision (based on internal testing). Advanced L.S.P. Systems open automatically when taken out of the box, one less thing to worry about when setting the car seat up. If space is limited in the car it can easily be folded away.One Base – Two Seats: Designed to Cover Your First 4 Years:Modular system:- As part of the Modular G3 Family, both the Cloud G3 infant car seat and the Sirona G3 toddler car seat fit the Base G3 and Base G. Once your child has outgrown their Cloud car seat the follow-on car seat Sirona G3 can simply be installed with just one click. Secured by ISOFIX connectors and a load leg, the base provides a user-friendly and safe foundation for the first 4 years.Guaranteed Comfort & Convenience for All:Multiple recline positions:- As your child grows, you´ll always be able to find the perfect traveling position. 5 different recline levels, in both front and rear-facing directions, are specially designed to provide a comfortable, ergonomic position for mid-trip naps
KidINN
Delivery: in United Kingdom
Report
£211.99

Cybex Sirona G3 I-size Plus Car Seat 526001329

A rear-facing car seat designed for protection, the Sirona G3 car seat delivers 50% higher safety than a conventional forward-facing seat (based on internal testing). 360° rotation makes getting your child in and out easy.Rear-facing travel made simple. The CYBEX Sirona G3 car seat delivers up to 50% higher safety levels for your child compared to... morea conventional forward-facing seat (based on internal testing). 360° rotation makes getting your child in and out easier by positioning them at a much more manageable angle. Specially designed to provide an ergonomic sitting position, the car seat keeps your child's legs and hips in the posture-friendly M-position, aiding their development as they grow. Activating the advanced Linear Side-Impact Protection System adds 25% more protection in a side collision (based on internal testing). And as a member of the Modular G3 family, the Sirona G3 fits onto the same base unit as the Cloud G3 baby car seat, part of a secure solution for the first four years.The German AGR is an independent organisation that evaluates products for their ability to relieve and avoid back-pain, one of the most common health issues worldwide today. CYBEX has been awarded their much vaunted Seal of Approval for the Sirona G3, recognizing its unique ergonomic design and functionality.The Sirona G3 clicks on and off the Base G3. This is installed using a load leg and ISOFIX. The Base G3 ensures safety and stability, and it can also be used with the Cloud G3 baby car seat. Look for the i-Size logo in your vehicle to check compatibility. If there is no i-Size logo but your car has ISOFIX, please check our Car Compatibility tool.Up to 50% Higher Safety Levels Rear-facing car seat:- Children must travel in a rear-facing position until they are 15 months old, and ideally up until they are 4. When used rear-facing, the Sirona G3 delivers up to 50% better protection compared to a conventional forward-facing seat (based on internal testing). In a frontal collision, the seat's padded shell absorbs and distributes impact force while holding the child close, limiting motion and reducing strain on the neck.Highlights & Features:Easy On and Off-boarding 360° rotation:- A 360° rotation mechanism makes it so easy to get your child in just the right position to get them in or out of the car, even when the car seat is reclined. Much quicker and much better for your back.Advanced Linear Side-Impact Protection System (L.S.P.):- When activated, advanced Linear Side-impact Protection combined with an energy-absorbing shell and a specially designed headrest gives your child 25% more protection in a side collision (based on internal testing). Advanced L.S.P. Systems open automatically when taken out of the box, one less thing to worry about when setting the car seat up. If space is limited in the car it can easily be folded away. Modular system:- As part of the Modular G3 Family, both the Cloud G3 baby car seat and the Sirona G3 toddler car seat fit the
KidINN
Delivery: in United Kingdom
Report
£233.99
Video reviews