Cybex is known for combining advanced safety technology with modern design, and their infant car seat lineup is no exception. Cybex’s infant car seat collection can be a little confusing since the names are so similar. Don’t worry, we’re here to help you sort it all out!

The Aton G2, Aton G2 Swivel, Cloud G Pro Comfort Extend, and Cloud T Comfort Extend each bring innovative features that prioritize both protection and convenience for families on the go. From temperature-regulating materials to sensor safe technology and unique recline functions, Cybex continues to lead the way in car seat innovation. In this comparison, we’ll explore the key differences between these three models to help you choose the best Cybex infant car seat for your baby’s comfort, your lifestyle, and your peace of mind!

Quick Guide: 

Cybex Aton G2 = reliable lighter weight Cybex option (replaced the Aton G)

Cybex Aton G2 Swivel = swivel rotation (replaced the Aton G Swivel)

Cybex Cloud G Pro Comfort Extend* = reclines on stroller and meets the upcoming FMVSS 213 safety standards (effective Dec. 2026) for side and front impacts (replaced the Cloud G Lux)

Cybex Cloud T Comfort Extend* = reclines on stroller - nearly flat recline outside car

*will refer to as just "Cloud G Pro" or "Cloud T"

Deeper Look:

Cybex Aton G2: The Travel Ready, Updated Aton G Infant Car Seat

The Cybex Aton G2 infant car seat is designed with safety and comfort at the forefront, delivering peace of mind from day one. As the updated successor to the Aton G, the Aton G2 meets and exceeds the latest federal safety standards, including the newest side-impact requirements. Advanced safety features such as Linear Side-Impact Protection and a Load Leg Base work together to help absorb and reduce crash forces, providing enhanced protection in both frontal and side-impact collisions.

Beyond safety, the Aton G2 is thoughtfully designed for everyday convenience. SensorSafe Smart Technology helps monitor your child by sending alerts for potentially unsafe situations, while the SafeLock Belt Tensioner ensures a secure and straightforward installation every time. Lightweight and easy to carry, the Aton G2 transitions seamlessly from car to stroller and is compatible with Cybex travel systems. With breathable fabrics, an adjustable no-rethread headrest, and premium materials, the Aton G2 offers the refined safety, innovation, and ease of use families expect from the world’s leading premium car seat brand.

Key Features:

• GREENGUARD Gold Certified for lower chemical emissions and healthier air quality around your child
• Engineered for safety, meeting FMVSS 213b frontal and side-impact crash standards
• Load leg on base to lessen crash forces in the event of an accident
• Excellent breathability with a ventilated shell and mesh fabrics for year-round comfort
• 11-position adjustable headrest with a no-rethread harness that grows with your child
• Oversized UPF 50+ sun canopy for maximum sun protection that tucks away when not in use
• Fire-retardant-chemical-free fabrics that meet all safety standards without added FR chemicals
• Travel-system compatible with Cybex strollers for easy on-the-go use
• Easy-in buckle pad keeps the buckle forward for quicker, easier buckling
• FAA approved for use on airplanes without the base
• Machine-washable fabrics for easy cleanup and everyday convenience

Key Specs:

• Carrier weight: 9 lbs
• Base weight: 15.7 lbs
• Carrier dimensions: 26.1"D x 17.5"W x 14.7"H
• Base dimensions: 26”L x 14.5”W x 27.1”H
• Baby weight range: 4-30 lbs
• Baby height limit: max 32"
• Harness type: No-rethread
• FAA approved: Yes
• European belt routing: Yes
• Installation options: LATCH with base, seat belt with base, or European belt path without base
• Load leg: Yes
• Expiration: 6 years from manufacture date
• Warranty: 2 years

Choose the Aton G2 if:

• You want easy connection to a Cybex stroller
  
• You want a lightweight, easy to install seat with advanced safety and technology
  

Pass on the Aton G2 if:

• If you want rotation for easy loading and unloading or plan to use the car seat on the stroller often and could benefit from a lie-flat feature out of the car
• If you are choosing a Nuna stroller as Cybex seats will not fit on Nuna strollers

Cybex Aton G2 Swivel: The Swivel Infant Car Seat

Key Features:

• 180° ergonomic swivel base for easy entry and exit
• Anti-Rebound Bar with Load Leg enhances crash protection
• Meets upcoming FMVSS 213 safety standards
• GREENGUARD Gold Certified
• Linear Side-Impact Protection to reduce impact energy
• Lightweight for easy carrying without sacrificing safety
• SensorSafe™ alerts directly to your smartphone
• 11-position adjustable headrest with no-rethread harness
• Air ventilation for all-season comfort
• Oversized UPF 50+ canopy that tucks away neatly
• SafeLock belt tensioner for quick and secure installation
• Travel-system compatible with Cybex strollers
• FAA-approved for aircraft use (without the base)
• Easy-care machine-washable seat fabrics

Key Specs:

• Carrier weight: 9 lbs
• Base weight: 15.7 lbs
• Carrier dimensions: 26.1"D x 17.5"W x 14.7"H
• Base dimensions: 15.2"W x 14.2"H x 24.8"L
• Baby weight range: 4-30 lbs
• Baby height limit: max 32"
• Harness type: No-rethread
• FAA approved: Yes
• European belt routing: Yes
• Installation options: LATCH with base, seat belt with base, or European belt path without base
• Load leg: Yes
• Expiration: 6 years from manufacture date
• Warranty: 2 years

Choose the Aton G2 Swivel if:

• You want a swivel infant car seat for super easy loading, unloading, and buckling.
• You want an infant car seat that's easy to install with advanced safety features.
  

Pass on the Aton G2 Swivel if:

• You need to fit three car seats across. While this car seat is narrow enough (17.5" wide), you won't be able to swivel it if there's another car seat right next to it. In that case another Cybex option may work better for your needs.

Cybex Cloud G Pro: The Updated Cloud G Infant Car Seat

The Cloud G Pro takes everything parents loved about the Cloud G Lux and refines it with smart, meaningful updates. It retains the signature deep recline feature that made the Cloud series famous—offering up to 45% more recline than a standard infant car seat for superior comfort outside the car—while introducing new advancements in safety and sustainability.

The Cloud G Pro is now GREENGUARD Gold Certified, helping create a healthier environment for your baby. It also features enhanced side-impact protection that meets the upcoming FMVSS 213 safety standards set to take effect in 2026, ensuring the seat exceeds even the most rigorous safety requirements.

Like the previous model, it includes rigid LATCH installation for quick, secure setup and Cybex’s signature premium materials and modern design. The result is a car seat that blends innovation, style, and peace of mind—delivering the safest and most comfortable Cloud model yet.

Key Features:

• Full-recline “Comfort Mode” offers 45% more recline for ergonomic comfort outside the vehicle
• Extendable leg rest for added relaxation
• One-click rigid LATCH system for fast, secure installation
• Anti-rebound base reduces crash forces by up to 30%
• Load leg for added stability and crash energy absorption
• Linear Side-Impact Protection (L.S.P.) system
• SensorSafe technology for real-time safety alerts
• Built-in air ventilation for optimal airflow
• 12-position adjustable headrest with no-rethread harness
• XXL UPF 50+ canopy with mesh ventilation
• European belt path for flexible installation
• Compatible with all Cybex strollers using adapters
• Easy-in buckle pad holds harness forward for simple loading
  
• Machine-washable, fire-retardant-free fabrics
  

Key Specs:

• Carrier weight: 12 lbs
• Base weight: 17.1 lbs
• Carrier dimensions: 26.5-30"L x 17.6"W x 15.8-23"H
• Base dimensions: 14.2"W x 26.5"D x 36"H
• Baby weight range: 4-30 lbs
• Baby height limit: max 32"
• Harness type: No-rethread
• FAA approved: Yes
• European belt routing: Yes
• Installation options: LATCH with base, seat belt with base, or European belt path without base
• Load leg: Yes
• Expiration: 6 years from manufacture date
• Warranty: 2 years
  

Choose the Cloud G Pro if:

• You want a Cybex infant car seat that meets the new FMVSS 213 side and front impact laws and is GREENGUARD Gold certified.
• You want an infant car seat that can recline when on the stroller. 
• You want an infant car seat that's easy to install with advanced safety features.
  

Pass on the Cloud G Pro if:

• You want or need a light weight infant car seat. At 12 pounds, the Cloud G Pro is one of the heavier infant car seats on the market.
• You want a near flat recline when car seat is on the stroller

Cybex Cloud T: The Platinum Reclining Infant Car Seat

The Cybex Cloud T infant car seat is where safety meets serious comfort and style. The Cloud T is part of Cybex's platinum line and for good reasons. It’s one of those car seats that feels just as good as it looks—tested to the highest standards and designed with parents (and babies) in mind. Every detail feels elevated, from the buttery-soft, chemical-free fabrics to the thoughtful safety features that go the extra mile for peace of mind. 

The Cloud T isn’t just about getting from point A to B. It’s about keeping your baby safe and comfortable the whole way there. The SensorSafe chest clip connects to your phone for smart alerts, while the load leg and anti-rebound base work together to reduce crash forces. And when you’re out of the car, it reclines almost flat, turning into a cozy, ergonomic spot for naps on the go.

Plus, the Cloud T grows with your baby. The 12-position adjustable headrest and no-rethread harness make it easy to get the perfect fit as your little one gets bigger. Built-in air ventilation keeps them comfortable on warmer days, and the XXL UPF 50+ canopy with mesh provides shade and airflow for extra protection. With its easy one-click LATCH installation and compatibility with all Cybex strollers, the Cloud T makes daily life simpler for parents while giving babies a safe, stylish ride wherever you go.

Key Features

• Full-recline “Comfort Mode” for ergonomic comfort outside the vehicle
• Extendable leg rest for added relaxation
• One-click rigid LATCH system for fast, secure installation
• Anti-rebound base reduces crash forces by up to 30%
• Load leg for added stability and crash energy absorption
• Linear Side-Impact Protection (L.S.P.) system
• SensorSafe technology for real-time safety alerts
• Built-in air ventilation for optimal airflow
• 12-position adjustable headrest with no-rethread harness
• XXL UPF 50+ canopy with mesh ventilation
• European belt path for flexible installation
• Compatible with all Cybex strollers using adapters
• Easy-in buckle pad holds harness forward for simple loading
• Removable infant insert fits babies 4–11 lbs
• Machine-washable, fire-retardant-free fabrics

Key Specs:

• Carrier weight: 12 lbs
• Base weight: 17.1 lbs
• Carrier dimensions: 26.5-30"L x 17.6"W x 15.8-23"H
• Base dimensions: 15.94"W x 26.18"L x 14.4"H
• Baby weight range: 4-30 lbs
• Baby height limit: max 32"
• Harness type: No-rethread
• FAA approved: Yes
• European belt routing: Yes
• Installation options: LATCH with base, seat belt with base, or European belt path without base
• Load leg: Yes
• Expiration: 6 years from manufacture date
• Warranty: 2 years

Choose the Cloud T if:

• You love the features of the Cloud G Lux, but want an even more premium look an feel.
• You want an infant car seat that can recline flat when on the stroller. 
• You want an infant car seat that's easy to install with advanced safety features.

Pass on the Cloud T if:

• You're looking to spend a bit less on an infant car seat. 
• You want or need a light weight infant car seat. At 12 pounds, the Cloud T is one of the heavier infant car seats on the market.

Reclining Seat Showdown: What are the biggest differences between the Cloud T and Cloud G Pro?

When comparing the Cloud T and Cloud G Pro, the biggest differences come down to finishes, recline functionality, and updated safety standards. The Cloud T features more premium fabrics and refined details, giving it an elevated look designed to pair seamlessly with CYBEX Platinum strollers like the Priam. CYBEX also refined the recline mechanism on the Cloud T, making it smoother and easier to adjust for quick transitions in and out of the car. When used on a compatible stroller, the Cloud T also reclines further, offering a more lie-flat position for on-the-go comfort.

At first glance, the Cloud G Pro and Cloud T appear nearly identical. However, the Cloud G Pro meets the latest FMVSS 213 frontal and side-impact safety standards, making it a strong choice for families who prioritize compliance with the newest safety regulations.

Stroller Compatibility

Stroller compatibility is key—especially in those early days when your baby seems to nap around the clock. The ability to quickly click the car seat in and out of the stroller makes errands much easier and less disruptive.

All Cybex infant car seats are compatible with the same Cybex stroller models. Cybex strollers include the necessary adapters for the Aton and Cloud series, while other stroller brands will require a separate adapter purchase.

For a full list of compatible strollers with the Aton series, click >>> here! 

For a full list of compatible strollers with the Cloud series, click >>> here! 

Cybex Infant Car Seat Installation

Installing any of these Cybex infant car seats is simple and straightforward. Like most infant car seats, each includes a base that stays in the car for convenient everyday use—just click the seat in and out as needed. All Cybex models can also be installed without the base, making them especially handy for travel, ride shares, or quick trips in a second vehicle. 

Installing the Cybex base for the Cloud G Pro and Cloud T is as easy as locating your car’s ISOFIX latch anchors and clicking in the base’s rigid connectors. Watch this video to see just how simple it is to install the Cloud T base:

Since the Aton bases do not use rigid latch connectors, its installation is slightly different—but still quick and easy:

Materials: Do Cybex infant car seats contain flame retardant chemicals?

No—none of the Cybex infant car seats contain added flame-retardant chemicals. Instead, Cybex meets federal flammability standards by using high-quality fabrics and materials that are naturally flame-resistant.

Infact all Cybex infant car seats are now GREENGUARD Gold Certified, meaning they have been independently tested and certified for low chemical emissions. This certification, granted by UL GREENGUARD, ensures that the materials meet strict standards for indoor air quality—limiting the emission of over 360 volatile organic compounds (VOCs) and total chemical emissions.

This commitment to safety and sustainability means your baby rides in a seat that’s not only rigorously crash-tested, but also made with cleaner, healthier materials.

Why Trust Strolleria?

Strolleria is a family-owned and operated business, and helping families is truly in our DNA. For decades, we’ve been guiding parents through the ever-evolving world of baby gear—from nursery furniture and strollers to car seats designed for both city sidewalks and suburban streets. No two families are the same, which is why our expert recommendations are thoughtfully curated to match your unique lifestyle and parenting journey.

Because we work with parents through every stage of parenthood, we stay closely in tune with the needs of today’s modern families and the innovations shaping the industry. We believe in relationships over transactions, taking the time to listen, educate, and support you every step of the way. Strolleria has been offering honest, unbiased product reviews and comparisons for years, and our goal is simple: to provide informative, educational guidance that helps you confidently choose the perfect products for your growing family.

Still Have Questions?

Strolleria is dedicated to making the baby gear buying experience less overwhelming for parents. If you have more questions about Cybex infant car seats, feel free to contact us by emailing us at cs@strolleria.com or chat with us today!