---
product_id: 197000321
title: "Cybex Sirona S Rotating Convertible Car Seat with SensorSafe 2.1, Children Newborn to Four Years, Easy Child Load, Infant Baby Toddler Preschooler, Indigo Blue"
brand: "cybex"
price: "$3546"
currency: NZD
in_stock: false
reviews_count: 5
url: https://www.desertcart.nz/products/197000321-cybex-sirona-s-rotating-convertible-car-seat-with-sensorsafe-2
store_origin: NZ
region: New Zealand
---

# SensorSafe 2.1 smart alerts 360° rotatable seat 25% more side-impact protection Cybex Sirona S Rotating Convertible Car Seat with SensorSafe 2.1, Children Newborn to Four Years, Easy Child Load, Infant Baby Toddler Preschooler, Indigo Blue

**Brand:** cybex
**Price:** $3546
**Availability:** ❌ Out of Stock

## Summary

> 🔄 Spin, Secure, and Stay Smart — The Last Car Seat You’ll Ever Need!

## Quick Answers

- **What is this?** Cybex Sirona S Rotating Convertible Car Seat with SensorSafe 2.1, Children Newborn to Four Years, Easy Child Load, Infant Baby Toddler Preschooler, Indigo Blue by cybex
- **How much does it cost?** $3546 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/197000321-cybex-sirona-s-rotating-convertible-car-seat-with-sensorsafe-2)

## Best For

- cybex enthusiasts

## Why This Product

- Trusted cybex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Fit Growth:** 12-position adjustable headrest and no-rethread harness grow with your child.
- • **Smart Sensor Alerts:** Stay connected with real-time app notifications on your child’s safety and comfort.
- • **Next-Level Safety Tech:** Linear Side-impact Protection absorbs 25% more impact for peace of mind.
- • **Installation Made Simple:** EasyLock Bar reduces installation force by 4x with clear dual-level indicators.
- • **Effortless 360° Rotation:** Seamlessly switch between rear and forward-facing without the backache.

## Overview

The Cybex Sirona S is a premium convertible car seat designed for newborns to preschoolers, featuring a unique 360° rotating seat for effortless child loading and switching between rear and forward-facing modes. Engineered with advanced safety including a steel-reinforced frame, linear side-impact protection that absorbs 25% more collision force, and an anti-rebound design, it ensures superior crash protection. SensorSafe 2.1 technology integrates with your smartphone to provide real-time safety alerts, while the EasyLock Bar simplifies installation with reduced force and visual indicators. Adjustable headrest and no-rethread harness offer a perfect fit as your child grows, making this seat a durable, smart investment for busy millennial parents who value safety, convenience, and style.

## Description

The CYBEX Sirona S is the first convertible car seat in the U.S. to feature an innovative 360° rotatable seat with a load leg, making switching between rear-facing and forward-facing positions quick and easy. This rotatable seat, along with magnetic buckle holders, makes it easy to get your child in and out. Designed for safety, the Sirona S features a steel-reinforced frame and anti-rebound design that reduces car seat rebound movement. Linear side-impact protection system absorbs up to 25% more impact in a collision when compared to the same car seat without L.S.P. extended. A one-time belt installation secures both forward and rear-facing positions. Our EasyLock™ Bar works with your vehicle belt for easy and secure installation, while the dual-level indicators ensure the car seat is at the proper angle. Adjust your Sirona S as your child grows, with a 12-position headrest with no-rethread harness. SensorSafe™ technology in the chest clip syncs automatically with your mobile app and provides alerts of unsafe situations, including if a child unbuckles themselves; if the back seat is too warm or cold, if a child has been seated for too long, or if the driver accidentally leaves the child behind.

Review: quality seat, the last one you'll need before boosters. a back saver! - forgot to write a review. This was the car seat we bought after our newborn out grew the infant seat. My child is 3 now, and we still use this daily. Could not recommend more, this seat is a life saver for loading children into a sedan or low SUV. Now that we have a minivan, the swivel isn't needed. But the fact that one carseat can do both rear/front means this will be the last carset you need before you need to graduate to a booster seat. 2-3 years of constant use should speak for the quality and solidity of this. We actually bought a second. The seat is a little heavy, so moving between cars is a challenge. We also had trouble securing the hooks/buckles in certain rentals (nissan altima /chevy impala IIRC). This seems to fit fine in Toyotas, multiple model Siennas, Corollas, and Camrys. The issue is in certain seats, the part where you buckle the seat into the car frame is "higher" on certain models or the seat well is too shallow, and this causes the belt tension release to press against one of the covers. We mitigated this by placing some folded towels under the seat. And we didn't care because the seat fits fine in our primary cars.
Review: Great car seat, tricky to install - I really struggled with installing this and had to get professionals to help me. They explained the way the bench in my car worked it wasn't a good fit for having it in the middle, though i'm sure this varies by vehicle. If it's important to you to have your car seat in the middle seat and you don't have an SUV, i'd go with something else. We now have it installed on the side and it's been wonderful. The swivel has been a big relief for my back, and I don't feel I had to make sacrifices safety wise for it like I did with other swivel seats I researched. Our daughter appears very comfortable, the straps move smoothly and hold her firmly in place, and the sensor-safe works extremely well (though I needed the pros to show me where to plug that in too!). Unfortunately kiddo vomited in it ,but we found it very easy to clean! Everything came off the base and went back on easily and washed right out the first try. When the seat swivels, the leg pops up which can be unsettling but once the seat is locked in place (forward or rear facing) it isn't going anywhere. I'm grateful for all of the visual reminders indicating the seat is installed properly because we moved our front seat and it knocked the support leg off kilter. I noticed right away because of the color coding indicators at the top. Very glad we chose this car seat!

## Features

- Polyester
- Convertible Car Seat: The first car seat in the U.S to feature an innovative 360° rotatable seat, the Sirona S makes it quick and easy to switch between rear-facing and forward-facing positions and get your child in and out of the car.
- EasyLock Bar: Reduces the force needed up to 4x for simple and secure car seat installation. Dual-level indicators ensure that your car seat is at the correct recline angle while our load leg can reduce rotation in certain crashes by up to 30%.
- SensorSafe: Built into the chest clip, SensorSafe provides app alerts if a child unbuckles themselves; if the back seat has become too warm or too cold, if a child has been seated for too long, or if the driver accidentally leaves the child behind.
- Superior Protection: Linear side-impact protection (L.S.P.) absorbs up to 25% more impact in a collision compared to the same car seat without L.S.P. extended while the anti-rebound design reduces car seat rebound movement in the event of a crash.
- Adjustable Headrest: Make sure your car seat is always a perfect fit with 12 different headrest positions. The Sirona S harness adjusts without re-threading, making it easier to adjust the height of the shoulder straps as your child grows.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B085S7GWFX |
| Batteries required | No |
| Best Sellers Rank | #55,772 in Baby ( See Top 100 in Baby ) #97 in Convertible Child Safety Car Seats |
| Customer Reviews | 4.0 4.0 out of 5 stars (660) |
| Harness type | 5-Point |
| Item Weight | 41 pounds |
| Item model number | 519004441 |
| Material Composition | 100 |
| Material Type | Alloy Steel |
| Maximum height recommendation | 49 Inches |
| Maximum weight recommendation | 65 Pounds |
| Minimum height recommendation | 17 Inches |
| Minimum weight recommendation | 4 Pounds |
| Number Of Items | 1 |
| Number of reclining positions | 12 |
| Orientation | Rear Facing |
| Product Dimensions | 25.3 x 20 x 25.5 inches |
| Rear-facing minimum child weight | 4 Pounds |
| Style | Car Seat |
| Target gender | Unisex |

## Product Details

- **Brand:** Cybex
- **Color:** Indigo Blue
- **Installation Type:** Seat Belt
- **Material:** Alloy Steel
- **Orientation:** Rear Facing

## Images

![Cybex Sirona S Rotating Convertible Car Seat with SensorSafe 2.1, Children Newborn to Four Years, Easy Child Load, Infant Baby Toddler Preschooler, Indigo Blue - Image 1](https://m.media-amazon.com/images/I/41K1yNE2yPL.jpg)
![Cybex Sirona S Rotating Convertible Car Seat with SensorSafe 2.1, Children Newborn to Four Years, Easy Child Load, Infant Baby Toddler Preschooler, Indigo Blue - Image 2](https://m.media-amazon.com/images/I/61gvxteTNsL.jpg)
![Cybex Sirona S Rotating Convertible Car Seat with SensorSafe 2.1, Children Newborn to Four Years, Easy Child Load, Infant Baby Toddler Preschooler, Indigo Blue - Image 3](https://m.media-amazon.com/images/I/61iuyQOby7L.jpg)
![Cybex Sirona S Rotating Convertible Car Seat with SensorSafe 2.1, Children Newborn to Four Years, Easy Child Load, Infant Baby Toddler Preschooler, Indigo Blue - Image 4](https://m.media-amazon.com/images/I/61tjHITIzML.jpg)
![Cybex Sirona S Rotating Convertible Car Seat with SensorSafe 2.1, Children Newborn to Four Years, Easy Child Load, Infant Baby Toddler Preschooler, Indigo Blue - Image 5](https://m.media-amazon.com/images/I/51l7sAXiqrL.jpg)

## Questions & Answers

**Q: Does it alert you if you forget to take the baby out of the car after the car is turned off?**
A: I do not own this carseat but a friend does. I am someone who got alerted that my friends child was left in car, and where car was. Because of covid child was being cared for by relative who normally did not care for the child. Child is fine care of alert. Thank you to whoever came up with this

**Q: I installed this with the seatbelt and latch and it’s wobbly. i feel like i can tip it over. what did i do wrong?**
A: This seat only allows for install using one method - Seat Belt, or Latch, not both at the same time.  I would reccomend installing using seat belt - oncle you click it, pull the extra slack in the seat belt down where the buckle is, and then route the shoulder belt portion the rest of the way before you lock off - most times, the installer leaves too much slack in the lower belt and that is why it moves for any car seat.

**Q: Why is this car seat not stable? it wobbles side by side .**
A: Most have better luck installing this with the seat belt, over the latch system. The user manual also states, "In some vehicles in the most 
reclined position, it may be necessary 
to place a rolled towel or small blanket 
beneath (not behind) the Child Restraint 
near the seat back to provide enough 
recline so that the Recline Ball is in the 
BLUE ZONE for REAR-FACING use.
NOTE: Only items approved by CYBEX 
are allowed under Base."

**Q: Will this fit in a Chevy trailblazer?**
A: Some child restraints do not fit all vehicles or all seating positions. There are so many different combinations of vehicle makes, models, child restraint configurations, seat belt designs and seat cushion designs.  Dimensions of the seat  H 25.5” x W 20” x D 25.3”.

## Customer Reviews

### ⭐⭐⭐⭐⭐ quality seat, the last one you'll need before boosters. a back saver!
*by B***N on December 5, 2025*

forgot to write a review. This was the car seat we bought after our newborn out grew the infant seat. My child is 3 now, and we still use this daily. Could not recommend more, this seat is a life saver for loading children into a sedan or low SUV. Now that we have a minivan, the swivel isn't needed. But the fact that one carseat can do both rear/front means this will be the last carset you need before you need to graduate to a booster seat. 2-3 years of constant use should speak for the quality and solidity of this. We actually bought a second. The seat is a little heavy, so moving between cars is a challenge. We also had trouble securing the hooks/buckles in certain rentals (nissan altima /chevy impala IIRC). This seems to fit fine in Toyotas, multiple model Siennas, Corollas, and Camrys. The issue is in certain seats, the part where you buckle the seat into the car frame is "higher" on certain models or the seat well is too shallow, and this causes the belt tension release to press against one of the covers. We mitigated this by placing some folded towels under the seat. And we didn't care because the seat fits fine in our primary cars.

### ⭐⭐⭐⭐⭐ Great car seat, tricky to install
*by O***R on December 31, 2020*

I really struggled with installing this and had to get professionals to help me. They explained the way the bench in my car worked it wasn't a good fit for having it in the middle, though i'm sure this varies by vehicle. If it's important to you to have your car seat in the middle seat and you don't have an SUV, i'd go with something else. We now have it installed on the side and it's been wonderful. The swivel has been a big relief for my back, and I don't feel I had to make sacrifices safety wise for it like I did with other swivel seats I researched. Our daughter appears very comfortable, the straps move smoothly and hold her firmly in place, and the sensor-safe works extremely well (though I needed the pros to show me where to plug that in too!). Unfortunately kiddo vomited in it ,but we found it very easy to clean! Everything came off the base and went back on easily and washed right out the first try. When the seat swivels, the leg pops up which can be unsettling but once the seat is locked in place (forward or rear facing) it isn't going anywhere. I'm grateful for all of the visual reminders indicating the seat is installed properly because we moved our front seat and it knocked the support leg off kilter. I noticed right away because of the color coding indicators at the top. Very glad we chose this car seat!

### ⭐ I Do NOT recommend.
*by O***I on February 9, 2021*

I bought this seat as I am becoming a foster parent for children 0-2. I wanted a convertible seat that would accommodate any child in this age range. I loved that this seat swiveled. It's currently the only convertible swivel seat in the USA. Back story: I survived a deadly car accident in 2012. I was driving an Audi, so since German engineering saved my life before, I had high hopes for this German car seat. (Made in China though) 🙄 I now drive a 2013 VW Jetta. When the car seat arrived today, later than expected due to the storms in New England, I was SO excited to put in the car. After two hours of trying to get this seat to not wobble, I called it a day. I'm returning it tomorrow morning. Which is a huge pain given that the refund doesn't come for 2-3 days AFTER the seller receives it. So I'll have to wait another two weeks to order a different seat. I have worked as a preschool teacher for all of my adult life and have installed hundreds of car seats over the years. I have NEVER seen a car seat wobble like this. Even the $40 Cosco car seat from Walmart didn't wiggle like this. For $500 I expected the dream convertible car seat but I am highly disappointed. There are multiple points on this seat that are flawed. 1. The latch system belts are not sewn well. It wouldn't surprise me to see these become a reason for recall. 2. The latch system doesn't fit well in the two alcoves meant to contain them once latched. They don't allow for the belt to be tightened enough because they're restricted to the space in the alcove. 3. The belt system which is noted as the "preferred" method is useless. I'm sure the shape of my VW's seats play a role but minimally. The blue plastic pieces that are to hold the belt....I would say are upside down. There's nothing to prevent the seat belt from being pulled back up in the direction of the seat. 4. Because of these little alcoves for the latch - you need to weave the belt through the alcoves but its such an odd space that again even with the car's seat belt, it won't tighten enough. 5. Cybex thought to add a compartment on the back of the seat for the user manual but didn't think to add a handle anywhere on the seat to be able to carry it. It's HEAVY! And awkward! 6. The fabric is so smooth (yay) but is a type that is going to grasp on to every hair or fiber that comes it way. I could tell immediately that it would be a bitch to maintain. 7. The base itself has a much smaller width than the top of the seat. - I would think that due to physics this is why the thing wobbles. If the base was wider and more comprehensive espically by the edge of the VW's seat (where there's more natural give) then the Cybex wouldn't wobble. On a side note, I had emailed the company previously about any type of discount/program/grants available to try to lessen the cost. They emailed back to say they don't offer anything like that. Additionally, I couldn't find a crash test video anywhere for the seat. They sell for 270 Euro which converts to 195.5 Dollars. This Cybex seat is not worth $500.

## Frequently Bought Together

- Cybex Sirona S Rotating Convertible Car Seat with SensorSafe 2.1, Children Newborn to Four Years, Easy Child Load, Infant Baby Toddler Preschooler, Indigo Blue
- CYBEX Solution B2 fix+ Lux High Back Booster Seat, Lightweight Booster Seat, Secure Latch Installation, Linear Side Impact Protection, Reclining 12-Position Height Adjustable Headrest, Bay Blue

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-19*