Nuna PIPA RX vs. Romer Juni | Infant Car Seat Comparison

If you’re searching for a beautifully designed, lightweight, and easy-to-use infant car seat with advanced safety features, Nuna likely tops your list. But there’s a new contender you should know about: the Romer Juni. Wondering how the Romer Juni compares to the trusted Nuna PIPA RX? Keep reading for a detailed breakdown.

Nuna vs. Romer: What you need to know:

Whether you’re a first-time parent navigating the world of baby gear or a seasoned pro, you’ve probably heard of Nuna. Founded in 2007, Nuna started with a sleek highchair and quickly expanded its lineup to include strollers, travel cribs, baby carriers, and the hugely popular PIPA Infant Car Seat. With a devoted fan base, Nuna has cemented its reputation for combining safety, style, and practicality.

Romer, on the other hand, is a newer name for American parents but comes with an impressive pedigree. Brought to the U.S. by Britax—a trusted leader in child safety for over three decades—Romer offers the same safety-focused design ethos in an elevated, luxurious package. With high-quality, eco-friendly materials and an emphasis on elegance, the Romer Juni seamlessly blends safety with style. If you’re hesitant to try a less familiar brand, the Britax legacy behind Romer should inspire confidence.

Which infant car seat offers the best safety features? Nuna PIPA RX vs. Romer Juni:

While all U.S. car seats must meet the same safety standards to be sold, not all car seats are created equal. The Nuna PIPA RX and Romer Juni go above and beyond these requirements, offering advanced safety technology that exceeds standard expectations.

An infant car seat typically consists of two key components: the seat itself and the base, which houses critical safety features. Both the Nuna PIPA RX and Romer Juni come with bases packed with industry-leading safety innovations, including a steel stability leg, an anti-rebound plate/bar, and a rigid LATCH installation system designed to significantly reduce installation errors. Even the bases have their own distinct names: the Romer Juni pairs with the Versa Base, while the Nuna PIPA RX uses the RELX Base.

What is a stability leg (load leg)? A stability leg, or load leg, is a steel bar that connects to the car seat base and extends to the floor of the vehicle. It is designed to prevent upward rotation in the event of an impact. By stabilizing the seat, the stability leg ensures that the spine is evenly supported along the seat back during a collision, enhancing overall safety.

What is an anti-rebound panel/bar? In a crash, a car seat tends to move towards the point of impact. An anti-rebound bar arrests this movement, known as the rebound, helping the seat come to a stop sooner than it would without the bar. Both the Versa Base and RELX Base double up on anti-rebound protection with their integrated stability leg and anti-rebound plate.

What is rigid LATCH? The Versa Base and RELX Base are equipped with steel rigid LATCH. Rigid LATCH is an advanced safety enhancement designed to ensure maximum stability in the event of a crash. This feature involves a steel-to-steel connection from the car seat base to the vehicle frame, significantly minimizing side-to-side movement during a collision.

All car seats on the U.S. market meet basic safety standards, however, Nuna and Romer go above and beyond with features like stability legs, anti-rebound panels, and rigid LATCH to provide enhanced protection for your child.

Which infant car seat is the easiest to install? Nuna PIPA RX vs. Romer Juni:

Both the Nuna PIPA RX and Romer Juni offer quick and hassle-free installation, thanks to their Rigid LATCH systems.

The Versa Base introduces Romer’s innovative SecureLoc technology: a lever located on the top of the base releases the rigid latches, which are then pushed into the vehicle’s anchors. Once engaged, the base is pressed flush against the vehicle seat, and the rigid latches automatically retract into the base for a secure fit.

The RELX Base takes a slightly more straightforward approach. Its rigid latches rotate out from their storage position and are then pushed into the vehicle’s anchors. Additionally, the RELX Base features four recline positions, ensuring a proper fit in any vehicle, regardless of seat slope.

For vehicles without anchors, both the Nuna PIPA RX and Romer Juni can be installed using a seatbelt. The Versa Base’s SecureLoc system functions as an automatic seatbelt tensioner and lock-off, while the RELX Base incorporates a similar mechanism called True Lock. Installation involves threading the vehicle seatbelt through the designated belt path and engaging the lock-off for a secure fit.

Which infant car seat is better for travel? Nuna PIPA RX vs. Romer Juni:

The safest way to use either the Nuna PIPA RX and Romer Juni is with their included bases, which provide additional safety features and simplify the installation process. Since babies are often transported in multiple vehicles, both Nuna and Romer offer separately sold bases. This allows caregivers to keep a base pre-installed in their vehicle, making it easy to transfer the car seat from one vehicle to another.

However, frequent travelers or city-dwellers relying on public transportation may find it inconvenient to carry a base. In these cases, each seats European belt path provides a reliable alternative, allowing the Nuna PIPA RX and Romer Juni to be securely installed without a base.

The Nuna PIPA RX and Romer Juni are both FAA-approved making them excellent choices for travel. Their integrated European belt paths, also allow for secure installation during flight.

For families that opt to check their infant car seat with their luggage, Nuna scores big with their Boarding Pass Program. The Nuna PIPA Series Travel Bag includes Nuna's Boarding Pass, this program gives families peace of mind by ensuring that their car seat is not only secure inside the travel bag but also protected against any damage incurred during transit—Nuna will cover the cost of repairs if damage occurs while packed in the travel bag.

Which infant car seat is best for travel system use? Nuna PIPA RX vs. Romer Juni:

The Nuna PIPA RX and Romer Juni  both feature a Maxi Cosi style connection, providing vast stroller compatibility with industry leading brands.

The Romer Juni offers the utmost convenience when paired with the Romer Tura stroller. The Romer Juni connects directly to the Romer Tura frame - no adapters required.

The Nuna PIPA RX does also provide an adapterless connection when paired with select strollers like the NUNA TAVO Next and Nuna TRVL Lx. All other Nuna strollers do require an infant car seat adapter which comes included with each Nuna stroller.

When pairing the Nuna PIPA RX and Romer Juni with alternative brand strollers, infant car seat adapters are required and in most cases sold separately. However, their Maxi Cosi style connections cater to parents seeking to customize their dream travel system. 

Which infant car seat is flame retardant free? Nuna PIPA RX vs. Romer Juni:

Parents can rest assured knowing that both the Nuna PIPA RX and Romer Juni feature naturally flame-resistant fabrics, eliminating the need for added flame-retardant chemicals. The PIPA RX features a premium micro-knit fabric, while Romer takes an eco-conscious approach with its Seawool fabric—a blend of recycled polyester, recycled oyster shells, and polyester.

Which infant car seat is easiest to keep clean? Nuna PIPA RX vs. Romer Juni:

Before cleaning, it’s essential for caregivers to consult the car seat’s user manual and the care tag on the seat cover for specific washing instructions. Since a car seat is a significant investment, proper maintenance is key to preserving its safety and longevity.

Both the Nuna PIPA RX and Romer Juni come with removable, machine-washable covers. However, the Juni cover stands out by being both machine washable and dryer-friendly, while the PIPA RX cover requires line drying after washing.

Specs and Dimensions:  Nuna PIPA RX vs. Romer Juni:

The Nuna PIPA RX and Romer Juni are similar in size and weight, with the PIPA RX being slightly lighter and offering a higher weight capacity. However, it’s important to note that infant car seats have both height and weight limits, and usage should stop once either limit is reached. Most infants outgrow the height restriction before the weight limit, typically around their first birthday.

Weight:

• Nuna PIPA RX: car seat 8.6 lbs / base  18.6 lbs 
• Romer Juni: car seat 9.3 lbs / base 11.6 lbs

Dimensions:

• Nuna PIPA RX: 25.2"L x 17.5"W x 23"H
• Romer Juni: 28.1"L x 16.9"W x 24.1"H

Recommended Use:

• Nuna PIPA RX: rear facing from 4 to 32 lbs or 32"
• Romer Juni: rear facing from 4 to 30 lbs or 32"

What’s in the box:

• Nuna PIPA RX: car seat and base, two piece insert, three harness pad covers (set for shoulders, one for harness clip strap)
• Romer Juni: infant car seat and base, two seat inserts, three harness pad covers (set for shoulders, one for harness clip strap)
  

Warranty:

• Nuna PIPA RX: 1 year
• Romer Juni: 1 year

Comparing Features: Nuna PIPA RX vs. Romer Juni:

The Nuna PIPA RX and Romer Juni are thoughtfully designed with features that prioritize both convenience and aesthetics. Both include UPF 50+ canopies with mesh windows for ventilation and extendable drapes for full coverage and privacy. The handlebars are accented with elegant leatherette details, enhancing their premium feel.

Both car seats are also equipped with harness holders to make loading and unloading easier—a lifesaver for parents navigating a squirmy newborn! The PIPA RX uses harness slots to tuck metal clips out of the way when the baby is removed, ensuring a smooth reloading process. The Juni, on the other hand, features magnetic harness holders, offering similar functionality with a quicker, more seamless design.

Nuna PIPA RX Features:

• From fabric to foam and beyond, each element is smartly sourced to be both flame resistant and contain no added fire retardant chemicals
• Side impact protection for ultimate baby safe keeping
• Comfy organic jersey insert is removable for growing babies
• Integrated harness holders help when buckling baby in
• Luxe leatherette accented carry handle. Tote elegantly with ease
• Five point harness keeps little ones in place
• Two-piece removable infant insert + head support. Customize to their individual shape and get a perfect fit right from birth
• Mesh peek-a-boo window in canopy
• Ventilated Sky Drape offers full coverage, two positions, and UPF 50+ protection and attaches with hidden magnets
• Heavy duty shell is super resilient yet lightweight
• Lightweight carry handle is ergonomically designed to tote with ease
• FAA certified for aircraft use
• True lock™ installation makes set up swift, simple and above all – safe
• 5 second install
• Crumple zone within the stability leg absorbs impact and minimizes force transferred to baby
• Colored installation indicators confirm correct connections to the vehicle
• Bubble free recline angle guides clearly confirm the perfect riding angle
• Low profile base for easier loading of infant seat
• Open belt path for easier install
• Belt guides
• Anti rebound panel
• Automatic rigid latch storage
• Extra convenient stability leg storage with lock
• Steel reinforced true lock™ rigid latch
• Lock off with easy access belt path
• Indicators on rigid latch turn green when clicked to vehicle anchor points
• Indicators on stability leg turn green when in proper contact with vehicle floor
• GREENGUARD Gold Certified: Products that have achieved GREENGUARD Gold Certification are scientifically proven to meet some of the world's most rigorous third-party chemical emissions standards, and certified to not contribute to indoor air pollution or chemical exposure

Romer Juni Features:

• Refined Look, Beauty in the Details: This infant car seat features a timeless design with woven accents and a soft mahogany leatherette handle grip
• Premium Safety: Juni is the only infant car seat to offer the unique combination of the following five trusted safety features: an anti-rebound bar, a steel support bar, a load leg, rigid LATCH, and SecureLoc™ - our exclusive automatic seat belt tensioner and lockoff technology
•  Eco Luxury: The Seawool car seat cover is just as delicate and soft as merino wool but gentle on sensitive skin; made from recycled polyester, recycled oyster shells, and polyester*, Seawool is insulating, moisture-wicking, and odor-resistant.
• *Seawool fabric is made from 49.2% recycled polyester, 21.3% recycled polyester blended with oyster shells, and 29.5% polyester.
• Installation Made Effortless: The Versa™ car seat base pairs SecureLoc™ technology with steel rigid LATCH connectors for a simple installation
• Simplified Cleaning: The premium car seat cover is safe to machine wash and dry – and it’s made from durable fabrics that will stay looking like new
• Naturally Flame-Retardant Fabrics: Meet safety requirements without added FR chemicals. *Excludes leatherette accents
• Custom Fit and Support: Two petal-soft inserts gently cradle your little one to help create a custom fit in the newborn car seat and help provide comfortable, relaxing rides​
• Secure from Multiple Angles: The load leg helps manage energy and minimize movement, while the anti-rebound bar and steel support bar also help minimize movement
• Lightweight & Slim: Easy to carry for smooth and seamless travels; helps you save backseat space while giving your little one plenty of room
• UPF 50+ Canopy with Flip-Down Visor: The full-coverage canopy provides plenty of shade for your little one, while the quiet magnetic closure on the window makes it easy to check in
• SereneScreen™: Creates a private, shaded haven where your little one can relax; attaches securely with a magnet and stores inside the canopy when not in use
• Mesh Windows: The canopy and SereneScreen feature breathable mesh windows made from recycled materials
• Sleek Carry Handle: Lightweight aluminum carry handle with mahogany leatherette accent adjusts easily with one hand
• Seat-Only Installation: Makes it easy to transition between cars; the European belt guide helps keep this travel car seat secure when installing without the base
• Magnetic Harness Storage: Keeps harness out of the way while your child snuggles in and makes it easy to access when you’re ready to buckle
• IsoEnergy™ Technology: Designed to help manage energy.
• Installation Indicators: Visual guides help give you confidence that your baby car seat and base have been installed correctly
• Connects Directly to the Romer® Tura™ Stroller: No adapters needed
• Certified for Aircraft Use: This travel car seat can be used in aircrafts when installed without the base

Essential Car Seat Accessories: Nuna PIPA RX vs. Romer Juni:

Both Nuna and Romer offer additional car seat bases sold separately, making it easy and safe to transport the baby in multiple vehicles. Nuna also provides optional accessories, including a rain cover and the PIPA Series Travel Bag. The travel bag is especially useful for frequent flyers, as it protects the car seat during travel and includes coverage for damage when checked.

What is the best infant car seat? Nuna PIPA RX vs. Romer Juni:

Safety is the top priority when choosing an infant car seat, and the advanced safety features of the Nuna PIPA RX and Romer Juni make both models premium choices. Beyond safety, parents often value lightweight designs, ease of use, and convenience—and both car seats deliver these qualities in beautifully crafted packages.

With Romer’s recent introduction to the U.S. market, choosing between these two options has become a challenge. Ultimately, the decision may come down to stroller compatibility. Families who are drawn to Nuna strollers will likely choose the PIPA RX for a cohesive travel system, while those opting for the Romer Tura may prefer the seamless pairing of the Juni. Regardless of your choice, both car seats excel in safety, style, and functionality—making it impossible to go wrong.

Why should you trust Bambi Baby?

At Bambi Baby, our decades-long commitment to quality and customer satisfaction has established us as a trusted authority in the baby products' industry. With over 40 years of experience, we have developed a deep understanding of what parents require when choosing the perfect stroller. Our expert team is dedicated to guiding you through this important decision with personalized recommendations, ensuring that the stroller you pick perfectly matches your lifestyle and needs.

Still have questions? 

Bambi Baby experts are ready to connect! If you have any more questions regarding the Nuna PIPA RX and Romer Juni you can reach us at cs@bambibaby.com or chat with us on our website. We would love to hear from you!

We would also love to see you in store! Feel free to visit any of our store locations in New York, New Jersey, or Miami if you prefer personalized assistance from one of our experts. We're here to ensure you find the perfect gear for your baby with confidence and ease.