Best Cybex Sirona S Review 2022: Keep Your Little One Safe!

Are you searching for the best convertible car seat for your child? If your answer is YES, you're at the right place!

The review offers the ultimate info about the great Cybex Sirona S convertible car seat! You will see the benefits and advantages it provides, and why parents like it so much.

Are you ready to be astonished? Let's begin with our Cybex Sirona S review!

The Cybex Sirona S convertible car seat is perfect for all movable children; therefore, they need something to adjust quickly and effortlessly.

Summary

The Cybex Sirona S is, above all, a safe and secure model with a SafeSensor mechanism and application.

Moreover, the rotating and swivel design helps you effortlessly install and place the child in or out of the seat.

Finally, the recline positions and adjustments keep your little ones comfortable and cozy while riding.

Thus, you can check it on Amazon for around $500.

It might be expensive, but the swivel model contains even a load leg to prevent accidents and injuries, unlike the competitors.

So, it's the most reliable.

So, why should you trust the Cybex Sirona S?

1. Advanced design

The Cybex Sirona S is the revolutionary convertible car seat since it was the first rear-facing/forward-facing seat with a load leg for your baby.

No one car seat had this option, so all other brands followed this benefit to protect children in frontal car crashes.

My baby enjoyed it when she was younger, and it saved her life once in a car accident.

Nowadays, many parents contact me praising the car seat since they also find the load leg highly beneficial and life-savior!

2. Safety features

Of course, once you choose the Cybex Sirona S convertible car seat, you will find that the seat contains the SensorSafe security system.

Why is this crucial?

Well, if you ask me, I love when my children have full safety features in their car seats.

So, I place my baby girl into the seat and quickly activate the SensorSafe system to follow the security and stability of the kiddo.

The system works well with the chest clip of the non-rethread harness, and this safety feature is quickly attached, installed, and locked with the seat belt straps to offer maximum protection and stability for the baby.

So, the design might be more advanced than the Britax Boulevard or Evenflo 360 seats.

Of course, these seats also have a 5-point harness with the seat belt straps for installation and safety.

However, you will find the Cybex Sirona S has the advanced safety feature with the SensorSafe chest clip for extra protection and security, so once installed and locked, the seat provides more security than the other two seats.

It's simple - you can place your baby in the forward-facing or rear-facing mode, and the app will instantly alert you if the baby is unbuckled.

So, when my child is too hot or stiffed because she was in the car seat for too long, the app immediately notifies me if something goes wrong.

Thus, I can always follow her actions and omit accidents and severe injuries.

This way, the convertible car seat seems more advanced than the Sirona M or Z car seats.

But, of course, these rear-facing/forward-facing car seats also provide maximum safety and security for your children.

I have tried them as a CPST, yet I find the Sirona S most effective and fastest with the SensorSafe system for added peace of mind.

However, you must know that the Cybex Sirona S doesn't contain the LATCH system for installation and extra protection.

This way, you may opt for the Cybex Sirona M2 convertible car seat since this model includes both seat belt straps and LATCH attachments for installation and safety options.

So, if you prefer LATCH more, my advice is to go with the Cybex Sirona M2.

3. SensorSafe mechanism

To use this safety feature correctly, you need to download the receiver into your OBD port. Then, download the SensorSafe application.

The most vital benefit is that it notifies you about the conditions when you leave your child unattended in the vehicle.

Then, the design checks whether the chest clip is connected. There's also a battery in the clip, with a lifespan of twelve hours.

I recommend you not lock the clip when the child isn't inside to prolong the battery life.

When I first used the SensorSafe sensors and the app, I heard a loud noise, which meant that the harness and chest clip was buckled appropriately.

So, when I purposefully left my child alone in the car, the SensorSafe notified me that the child was unattained and proposed the list of emergency contacts and services in case there was an emergency.

So, I found the app pretty valuable and secure.

This way, we can prevent hot car deaths since the SensorSafe also measures and controls the temperature in the car, so you can always act immediately and prevent suffocating and severe injuries of your child.

You can watch a video regarding the SensorSafe app here.

A significant number of children's deaths was reduced due to this mechanism.

Hence, the Cybex application is very valuable and offers exact and precise information about your little one's conditions inside the motor vehicle.

So, although the price overpasses those Britax or Evenflo models, the reviews show that no other car seat can match the security and protection of the Cybex Sirona S.

4. Harness design

As you will see, the Sirona S car seat has a 5-point harness mechanism.

The review shows that the harness is a non-rethread one with pads and a two-position padded buckle for added comfort and softness for the kiddo.

Thus, you can adjust the harness to your kid's needs and tighten or loosen it if there is too much pressure.

This way, your kiddo won't be repressed, yet the harness will prevent escaping and keep the body parts secure and stable while on the road.

So, if you have a restless and easily affected child, as I do, you need to pay more attention and check the restraint mechanism before the trip.

Otherwise, the ride might be uncomfortable (to put it mildly).

5. Extra protection

You know that the Britax car seats have side-impact protection, protecting your baby from various car accidents - side, frontal, etc.

However, they do not have the linear side-impact protection as the Cybex car seats do.

Therefore, the Cybex seats offer excellent protection in the case of a frontal side, back, or other car crash (don't ask how I know), keeping your baby safe and protected.

Of course, you will notice another safety feature - the shock-absorbing material and the anti-rebound design.

Talking from experience, these benefits are extremely important when your child sits back, and you cannot follow all actions.

So, although Britax seats have regular side-impact protection, they still don't have the linear side-impact protection that absorbs more than 25% impact.

Combined with the shock-absorbing and anti-rebound design, the seat will not rebound and move in the case of a crash.

This way, the Cybex Sirona S saved my kiddo's life and added extra peace of mind.

6. Comfort features

You know that kids can be nasty and restless easily, especially when using a car seat for a longer period, so they become stiff. At least, my daughter does.

So, I really like the Sirona S since it offers excellent twelve headrest recline positions.

Therefore, you can find the upright position for your baby and adjust the harness height as they grow. In addition, the 5-point harness easily attaches and installs with the seat belt system.

So, you can find the proper harness height and secure it to fit your baby.

Of course, with twelve recline positions of the headrest, the Cybex Sirona S rear-facing/forward-facing car seat offers impressive comfort features.

Namely, once you find the proper body posture and buckle your baby if they become stiff or restless, you can easily select another position and adjust the seat to their needs.

Thus, you will not have to worry about the softness and coziness. Your baby will have enough room and comfort when inside the seat.

Also, since the Sirona S rear-facing-forward-facing car seat is the first one with the adjustable load leg, the convertible car seat offers more room for the kid inside both rear-facing or forward-facing modes.

The load leg also provides numerous recline positions, offering more comfort and safety for your baby.

So, you might find it more improved than the Evenflo 360 convertible car seat.

Yet, the Cybex Sirona S is a lot more expensive than the Evenflo model, so the latter is an excellent alternative if you don't want to spend more than $400 on an ideal car seat.

7. Ease of use & installation

If you select the Cybex Sirona S convertible car seat, regardless of the mode you're using - rear-facing or forward-facing, you will find the easy installation process and simple attachments.

I have tried multiple seats and helped various parents with their training with the installation process; therefore, I'm telling you - this car seat has the quickest installation!

You might find it better than the Cybex Sirona Z since this convertible car seat has the dual-level indicator confirming you're at the right installation angle.

Simultaneously, the load leg reduces rotation of the seat and eases the crash impact by 30% in some cases.

Another significant difference is that the Cybex Sirona S has a car seat base attached and installed with the seat, which is not the case with the Z model.

Now, this can be both advantage and disadvantage since the Z model is easier to move around the vehicle, but you need to spend extra money to obtain a car seat base, so it's a more expensive option than the S seat.

So, I highly recommend the S model, although you might find it more robust and demanding when changing cars or another vehicle on your journey.

In addition, the Cybex 360-degree rotating features will significantly help you switch between the rear-facing or forward-facing modes and install it easily.

This way, with seat belt straps, you can find the best position for your child, install the convertible seat effortlessly, and buckle them for the safest rides in the vehicle.

Also, the 360-degree rotation will ease the process of moving your child in and out of the vehicle without any trouble.

So, it stands out as the best convertible car seat!

8. Tips & tricks for setup

You need to squeeze the recline handle and move the seat to the most upright position to switch the modes.

Then, the rotating lock indicator shows unlock.

This is because the safety mechanism only works properly and rotates when there is the unlock as the rotating indicator.

However, you might find some issues since the seat indeed has difficulties staying locked out of the way and in the most upright position.

In addition, it's somewhat flimsy and unstable in the vehicle when you're trying to use the lower anchor or the seat belt straps to buckle it properly.

So, suppose you ask the experts and the manufacturer.

In that case, you will find that it's absolutely impossible to leave the seat in an unlocked position, so the seat must be installed in accordance with the angle and proportions for better security and more support.

Here you can see the video of how to install the Cybex Sirona S correctly.

In addition, the child cannot ride in the seat when it's in the rotating position.

You need to lock the seat into a rear or forward-facing mode and buckle up your child with the harness and seat belt entirely to avoid the crash.

So, the instruction manual is pretty clear about this: when in the vehicle, the Cybex Sirona S must be locked properly.

9. Quality of material

As previously mentioned, the Cybex Sirona S rear-facing/forward-facing car seat contains 100% polyester.

The material is of premium quality, sturdy and durable for more extended use.

Moreover, you will find it removable with a cover and machine-washable. This way, you can easily clean and maintain the car seat.

Of course, you will find the shock-absorbing shell to keep your child safe and secure while in the vehicle, and the shell will immerse the external pressure, impact, and strength of the crash (if there is one), and keep your child intact, calm and safe and sound.

So, unlike other variants, similar to Britax models, the Cybex Sirona S car seat offers excellent material and content.

The car seat is solid, robust, and reliable enough to survive external pressure and shock and last for an extended period.

10. Size and weight

Since the Cybex Sirona S is both a rear-facing and forward-facing car seat, the seat offers different measurements when in two modes.

Thus, you will find the following proportions: 25.3 x 20 x 25.5 inches.

When in a rear-facing mode, the car seat supports a child between 4 and 20 lbs and between 17 and 49 inches tall.

Remember, the child's head must be one inch below the top of the headrest and the car seat's shell.

However, if you use it in a forward-facing mode, the car seat will support a child between 22 and 65 lbs and between 28 and 49 inches tall.

The same rule applies here - the child's head must be one inch below the top of the headrest or the shell for more safety, better body position, and maximum security when in the vehicle.

11. Tether rules

Compared with the Cybex Sirona Z, the Cybex Sirona S seat has a swivel mechanism.

Therefore, when parents or even CPSTs want to rotate the seat to load the child, they need to firstly remove and then re-attach the tether when you install and buckle the seat in the proper position.

The swivel mechanism is also an ideal feature when you need to switch the manner and use the suitable riding mode for your child.

It will be an effortless and quick process so that you don't have to waste much of your time.

Therefore, the experts and manufacturer provide the following rule: you should use a tether when you install the seat in a forward-facing manner.

However, when using a load leg to prevent the impact of a car accident, you don't have to use a tether as a support when you want to install the seat in the forward-facing position.

This way, the Cybex Sirona S meets and exceeds all US safety standards and regulations both with or without the tether, with or without the load leg.

However, being a CPST, I always encourage parents to apply the tether when in the forward-facing position.

Various reviews can be found about these issues, so if you want a safe installation and more security for your child, you should use the tether, not only the load leg mechanism.

12. Travel-friendly?

Unfortunately, you cannot take the Cybex Sirona S across the ocean since the harness and the seat belt attachments cannot meet and connect appropriately to the airplane belt design.

Therefore, the Cybex Sirona S is not FAA approved. So, if you want to use your car seat for all travel types, you might try various alternatives.

Here you can find numerous FAA approved models.

Personal experience

I really like the Cybex Sirona S convertible car seat since it's easily adjustable to my kid's needs and offers maximum security.

This is crucial for me since I always want comfortable rides, omitting all possible risks and severe injuries since we have been in one.

So, with easy installation, swivel design, recline headrest, and comfort features, my kid and I never have problems, and both of us enjoy it!

So, I think it won't let you down.

But, for a similar experience, you can visit various sites & find more interesting stories!

FAQs

Final Verdict

And this is the end, my dear parents!

I hope you liked the review and learned many interesting facts regarding the Sirona S convertible car seat.

In the review, you could find how we test the seat and what stands out as the crucial benefiting points.

So, if you like the Sirona S, you should hurry up and obtain it now! I promise you will love it as much as we do!