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CYBEX Sirona SX2 i-Size Car Seat - Deep Black

Code: 3THJmZuAsx
  • £349.95
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CYBEX Sirona SX2 i-Size Car Seat - Deep Black

CYBEX Sirona SX2 i-Size Car Seat - Deep Black is so simple to set up. This i-Size car seat is suitable from birth (with newborn inlay) all the way up to 18 kg (approximately 4 years old), or from 61 to 105 cm (421 cm with newborn inlay). The 360 degree rotating Sirona SX2 takes the stress out of installing Car Seats and ensuring your child is secure. With a whole host of safety features combined with ease of use, this car seat offers a carefree travel experience.

Why Should I Choose CYBEX Sirona SX2 i-Size Car Seat - Deep Black?

CYBEX Sirona SX2 i-Size Car Seat - Deep Black only takes a moment to get your child onboard. Simply swivel this seat to the rear-facing position, and you're ready to go. What's more, you can then switch your child to forward-facing when they grow bigger, as the 360 degree rotation allows you to do it in seconds. Sirona SX2 i-Size features an advanced Linear Side-impact Protection too, making one less thing to take care of so that you ca focus on the journey ahead.

Quick And Easy

You'll love how simple the CYBEX Sirona SX2 i-Size is to use. The 360 degree rotating mechanism takes the back strain out of getting your child onboard. It's so easy to swivel the seat to the door side, pop your child in and buckle them up. And it's just as easy to get them out again! The belt holders give you a helping hand, too. Plus, switching between rear and forward-facing travel couldn't be simpler.

Comfortable Travel In Rearward Facing

In addition, a rear-facing car seat improves your child's safety significantly in the event of a head-on collision. In this position, front impact forces are distributed across the Car Seat shell. It's mandatory for children to travel rear-facing until they are over 15 months old and 76 cm tall. However, in the Sirona SX2 i-Size Car Seat, CYBEX recommends that children travel rearward for as long as possible. Additionally, the one hand recline function makes a peaceful drive easy. It features 5 recline settings in both riding directions, making it easy to find the perfect sleeping position for your child.

Error Free Installation

CYBEX Sirona SX2 i-Size features preset Advanced Linear Side-impact Protection which is ready to use form the get go, with no extra installation required. In combination with the energy-absorbing shell, it can reduce the force of a side impact by approximately 25%. In forward-facing travel, Energy Reduction Technology improves safety performance. Impact forces are transmitted directly into the car seat via the harness system, where they are partially dissipated by energy-absorbing materials. This reduces the forces on the child's sensitive neck by approximately 20%. Lastly, the energy absorbing shell is designed to flex with an impact and channel dangerous forces away from your baby.

Grows With Your Child

As well as this, you'll love that CYBEX have designed the Sirona SX2 i-Size to grow with your child up to around 4 years old. That means you won't need to switch between car seats constantly. The height-adjustable headrest has 12 settings for a customised fit, so that it's easy to adapt the seat to keep pace. Simply click the Sirona SX2 into your vehicle using its ISOfix connectors and the easy to check indicators to confirm correct installation, and away you go.

What Are The Specifications For CYBEX Sirona SX2 i-Size Car Seat?

Dimensions: L 71 cm x W 49 cm X H 68 cm

Weight: 14.1 kg

Compatible with SensorSafe

Certification: UN R129/03

Suitable from: 61 - 105 cm (From 45 cm with newborn inlay)

Max. 18 kg: from approx. 3 months up to 4 years (From birth with newborn inlay)

360 degree rotating seat

Advanced Linear Side-impact Protection

Energy Reduction Technology

ISOfix installation

Maintenance: Fabric covers machine washable at 30 degrees

What's In The Box?

CYBEX Sirona SX2 i-Size

Instruction manual

Do I Receive A Warranty?

CYBEX offer a 2 year manufacturers warranty on pushchairs against any manufacturing faults or defects. Proof of purchase is required. This applies to UK Mainland only.


Delivery within the UK Mainland (does not include Northern Ireland)*

  • FREE Next Business Day Delivery (order by 13:00, weekday deliveries only) for UK Mainland orders over £50
  • £5 Next Business Day Delivery (order by 13:00, weekday deliveries only) for UK Mainland orders under £50
  • £8.95 per box surcharge for Specified Weekday
  • £18.95 per box surcharge for Saturday Delivery
  • "Sold out" items are currently unavailable
  • "Direct - Delivery Date To Be Advised" items are delivered directly by the manufacturer according to timescales they dictate. Refer to product page for best guess estimates

*Excludes remote locations where surcharge of £20 per parcel is applicable

*Please note that deliveries to Scotland can take an extra day to be delivered

Delivery to UK Islands & Highlands*

  • £15 per item to Northern Ireland
  • £20 per item to Islands & Highlands (see list below) 
  • £50 per item to Channel Islands 
  • The standard delivery time to UK Islands & Highlands is 3 - 5 working days. 

*We deliver to Western Isles, Scottish Isles, Shetland, Orkney, Isle of Skye, Isle of Man, Isle of Wight, Highlands and Remote Areas

*Remote locations are subject to surcharge of £20 per parcel

*Please note that you will be contacted after order placement with regards the number of parcels required to ship your order should it be more than 1. 


Delivery to Mainland Europe*

  • £30 per parcel, for multiple parcels, multiple charges apply (please see below)
  • The standard delivery time to mainland Europe is 3 - 5 working days depending on geographic location. 

*We deliver to Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Ireland, Latvia, Lithuania, Luxembourg, Netherlands, Northern Ireland, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden.

*Excludes remote locations where surcharge of £20 per parcel is applicable.

*Please note that you will be contacted after order placement with regards the number of parcels required to ship your order should it be more than 1, multiple charges will apply. 

*All products by Britax, Graco, Joie, Nuna are restricted from being shipped outside the UK Mainland. Orders for these products with delivery addresses outside of the UK mainland will not be shipped. 

Delivery Timing

Occurs Monday to Friday, generally 9am - 6pm (excluding public holidays). Please note that collections occur Monday to Friday (excluding public holidays).

Please Note

  • If the buyer wants to cancel the order that is already in transit you simply reject delivery 
  • If the buyer accepts the parcel and then cancels the order, the return costs are at the buyers expense 
  • If a delivery is rejected or 3 delivery attempts are made without success the order will be automatically returned to sender
  • Cost to attempt re-delivery of an order is £15 per parcel for UK mainland & £30 per parcel for European addresses
  • Orders travelling outside UK mainland: You may wish to arrange insurance against loss or damage 
  • We may use recycled packaging if the packaging provided by the manufacturer isn't sufficient. Please check contents. Any parcel refused without checking will be subject to £15 returns charge
  • Please note that product warranties are not valid outside of the UK mainland, we will try to help you as best we can with parts and fixes but delivery costs are chargeable 
  • If paying by card over the phone the delivery address must be the same as the billing address so that we can help prevent fraud. (If proof of address can not be provided) 

We offer a 30-day return policy on all non-disposable items that are unused [Consumer Rights Act 2015]. If you are not satisfied with the products you purchased, simply send them back to us unused, in the original packaging and in resellable condition (at your own cost and risk). Include your order number and name. 

Conditions for refunds are:

  • Item must be with us within 30 days of receipt
  • We will repay the amount to the payment method used, eg. paypal, credit card, debit card
  • Delivery costs to return the item will not be refunded 
  • The product must be unused and returned with all original packaging
  • The product and packaging must be in resell-able condition
  • We reserve the right to not reimburse for any used goods 


  • Cancellation and return of special order items and assembled furniture may be subject to a charge for us to re-stock
  • If you do not want to arrange your own return we can do so at a cost of £15 per package and per attempt (UK mainland only)
  • Individual items from bundles or packages are not returnable. Bundles & packages must be returned in full 
  • If an item from a multi item purchase is returned delivery charges will be recalculated and applied to the remaining live order 
  • If need be, we can supply a suitable transport carton at a cost of £10


Return address: 

1 Old Park Farm 
IP13 0LZ

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