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Sirona Platinum Plus

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Sirona Platinum Plus



Safely rear-facing from birth up to 18kg (approx. 4 years)

A rear-facing child seat reduces the risk of injury in a head-on collision by more than 80% when compared to a conventional forward-facing seat with harness system, as the force of an impact is distributed evenly over a large area.*

  • Safely rear-facing up to approx. 4 years
  • 360° rotation with easy entry position
  • Front-facing with adjustable impact shield (9 –18 kg)
  • One-click installation with ISOFIX
  • Telescopic Linear Side-impact Protection (L.S.P. System)

Leading consumer organisations therefore recommend that children remain in rear-facing child seats even beyond group 0+. The excellent safety performance and clever functionality of the pioneering combination car seat Sirona was awarded TEST WINNER by Germany's leading consumer testing organisation Stiftung Warentest in the test 6/2012.

*According to research conducted by VTI – Swedish Road and Transport Research Institute (Rapport 489A, 2003)

Easy entry & exit position - 360° rotation


360° rotation

A clever 360° rotation system makes life easier and less back-breaking for parents.

The clever rotation mechanism makes it easy to change between the rear-facing and forward-facing positions without having to take the seat out. Getting in and out is also easy as the seat can be turned to the side facing the door with one simple click.

One-click installation with isofix - For both rear- and forward facing position


For both rear- and forward facing position

A one-click installation with ISOFIX both in rear- and forward-facing position allows for simple installation and guarantees increased safety.

Sirona is secured using the car's ISOFIX system and requires no further fastening. A prop at the front helps to absorb the force of impact in case of a head-on collision and provides additional stability. This anchoring technology minimizes installation mistakes and optimizes the protective effect.

Seat-to-chassis technology - Direct link between car and seat


Direct link between car and seat

The innovative Seat-to-Chassis technology creates a direct link between the seat and the chassis.

In case of an accident, the force of an impact is transferred straight to the chassis, which simultaneously activates the safety features of the car and the seat and thereby initiates the process of distributing the force at the earliest possible stage of an accident. Patent pending.

Telescopic L.S.P. System - Linear Side-impact Protection


Linear Side-impact Protection

The telescopic linear side-impact protection (L.S.P. System) absorbs the force of a side-impact collision at a very early stage (patent pending).

Whether rear- or forward-facing, the CYBEX SIRONA's adjustable Linear Side-impact Protection system (L.S.P.) increases the level of safety in case of a side-impact collision. The L.S.P. system can be individually adjusted to the position of the seat and the type of vehicle and absorbs the force of a side-impact collision in combination with the head and shoulder protectors (patent pending).

Alternative - forward facing - For children from 9-18 kg


For children from 9-18 kg

Depending on their shape and size, older children may have insufficient legroom when sitting backwards.

In this case, the CYBEX Sirona can also be used as a forward-facing seat with impact shield - from 9-18 kg (approx. 9 months to 4 years).

Adjustable impact shield with A.R.T. Technology - Safety without confinement


Safety without confinement

The adjustable impact shield with A.R.T. Technology cleverly reduces the risk of serious neck injuries without confining the child (patent pending). Thanks to the new integrated fastening system, there is no longer the need to fasten the impact shield separately.

In the forward-facing position, the child is protected by an adjustable impact shield. This system works like an inflated airbag, which absorbs the energy of impact over its entire area. Compared to a conventional 5-point harness, the strain on the neck is significantly reduced. What is more, in case of an accident, the impact shield's new Active Response Technology (A.R.T.) ensures that the child is intuitively secured within the safety zone of the seat (patent pending). Thanks to the new integrated fastening system, it is also unnecessary to fasten the impact shield with the car seatbelt (patent pending).

Colours and Fabrics - Design, Safety and Functionality


Design, Safety and Functionality

Continuing the CYBEX tradition of having fashionable colours, the PLATINUM car seats come in a great range of colours in two fabric variations.

Comfort version: the soft and cozy comfort version of the Platinum car seats features 8 colour combinations. 

Plus version: the Plus version gets its characteristic appearance through an exclusive, very hard-wearing fabric with a twill effect in a denim look. These child car seats are available in 7 different colours.

tested by real parents

Carola J.: „Lots of safety + comfort. Perfectly fits into small city cars and the child also feels comfortable during longer journeys.“

Magdalena W.: „A top-class rear-facing car seat, offering a high level of safety and great comfort thanks to the rotation function. By the way it also looks fantastic.“


  • height adjustable headrest (11 positions)

    height adjustable headrest (11 positions)

  • one-hand reclining function (7 positions rear-facing)

    one-hand reclining function (7 positions rear-facing)

  • one-hand reclining function (5 positions forward-facing)

    one-hand reclining function (5 positions forward-facing)


  • ISOFIX guides
  • Summer cover
  • Newborn Inlay
  • Load Leg Extension


Engineered in Germany

length / width / height : 680, 440, 635 mm
weight: 15 kg
ECE R44/04, Supplement 7, Gr. 0+/1
Fabric covers machine washable at 30°
Engineered and designed in Germany

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