Who is the Declan Aria V2 best for?

The Declan Aria V2 is best for parents who want a very light infant car seat that works cleanly with an UPPAbaby stroller. It makes the most sense if you expect to carry the seat often or move it between car, stroller, and home.

Is the UPPAbaby Aria V2 too small?

The Aria V2 is an infant seat with a 30 inch height limit and 30 lbs. weight limit. Many babies outgrow infant seats by height before weight, so the Aria V2 may not last as long as a larger infant seat for some taller babies.

Can the Aria V2 replace a convertible car seat?

No. The Aria V2 covers the infant stage only. It is convenient because it clicks in and out of the base and stroller, but your child will still need a convertible car seat after outgrowing the infant seat.

Is the Aria V2 worth it if I already have an UPPAbaby stroller?

Yes, it can be. The Aria V2 attaches directly to Vista and Cruz strollers without adapters, which keeps the travel system simple. If you are using Minu or Ridge, you will need the correct adapters.

What is the difference between Aria V2 and Mesa V3?

The Aria V2 is lighter. The Mesa V3 has a taller stated height limit. Both are UPPAbaby infant car seats, but the Aria V2 is aimed at parents who care most about easy carrying and a lighter travel setup.

Can I use the Aria V2 for a preemie or small newborn?

The Aria V2 starts at 4 lbs. and includes a two-piece infant insert. The preemie cushion is used for smaller babies and is removed at the weight listed in the manual. A proper fit still matters, especially with very small babies.

What should I check for newborn fit in the Aria V2?

Check that the harness is at the shoulders or slightly below, the chest clip is at armpit level, the harness is snug, and the head has at least 1 inch of clearance from the top of the headrest. If your baby’s chin is pushed down toward the chest, stop and check the setup before riding.

Can the Aria V2 be used in taxis or rideshares?

Yes. The Aria V2 can be installed without the base using European belt routing, which is helpful for taxis, rideshares, grandparents’ cars, and rental cars. Practice the base-free install before you need it.

Does the Declan Aria V2 include a base?

Yes. The Aria V2 comes with a base. The base includes SmartSecure installation, a red-to-green indicator, auto-retracting LATCH, a built-in lockoff for seat belt installation, a load leg, and an Anti-Rebound+ Panel.

Do Aria and Mesa use the same base?

No. Do not assume UPPAbaby bases are interchangeable. The Aria base is compatible with Aria, Aria V2, and Mesa Max infant car seats. It is not compatible with Mesa or Mesa V2.

Does the Aria V2 have a large canopy?

Yes. The Aria V2 has an extra-large UPF 50+ canopy with a pop-out sunshade and ventilation for airflow.

Can the Aria V2 fabrics be washed?

Yes. The Aria V2 has removable and washable fabrics. Follow the manual before removing or reinstalling any fabric or insert pieces.

Can I use the Aria V2 after a crash?

No. The Aria V2 should be replaced after a crash. The manual says to discontinue use after a crash or once the seat reaches 7 years from the date of manufacture.

UPPAbaby

1002-ARI-US-DCL

UPPAbaby Aria V2 Lightweight Infant Car Seat - Declan (Oat Melange)

Name: UPPAbaby Aria V2 Lightweight Infant Car Seat - Declan (Oat Melange)
Brand: UPPAbaby
SKU: 1002-ARI-US-DCL
Price: 449.99 USD
Availability: InStock

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UPPAbaby Aria V2 Lightweight Infant Car Seat - Declan (Oat Melange)

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Aria Accessories
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UPPAbaby Aria/Aria V2 Infant Car Seat Base

$229.99

Uppababy Infant Car Seat Travel Bag for Aria/Aria V2, Mesa (all models)

$119.99

UPPAbaby Cabana for Aria/Aria V2, Mesa/Mesa V2, Mesa Max - Jake (Black)

$34.99

Overview

Tech specs

Features

A Closer Look

Overview

Carry Less, Do More

Meet the UPPAbaby Aria V2, the featherweight champ of car seats at just 6 lbs. Easy on your arms, cozy for your little one, and built for smooth hops from car to stroller. Light, safe, and stress free because parent life is heavy enough.

Why We Love It ❤️

Lightest infant car seat on the market weighing in at just 6 lbs.
Extra-large, UPF 50+ canopy with pop-out sunshade and ventilation for airflow
Two-piece robust infant insert ensures proper fit and body positioning for preemies from approximately 4 lbs. with ability to fit babies up to 4 months
SmartSecure® System with red-to-green visual indicator accurately installs in seconds
Direct attachment for Vista and Cruz strollers + convenient adapters for Minu and Ridge

A smiling Black woman in business attire carries a baby in a black car seat. The background is a large room with brick walls and windows.

Tech specs

Tech Specs

Approximately 0–1 years
Suitable from birth (4 lbs - 30 lbs and up to 30” in height) whichever comes first (US only)
Carrier Weight: 6 lbs (without canopy and insert)
Base Weight: 12.6 lbs
Carrier Dimensions 24.5” L x 17” W x 18.5” H
Base Dimensions 23.9” L x 14” W x 15.2” H

What's Included

Carrier, Base, Two-Piece Robust Infant Insert, All-Weather FootCover, and Product Lifetime Warranty.

A mother holding her baby, with an Uppababy car seat to the left, on a neutral-colored rug. Brick wall in background, soft lighting.

Features

Featherweight Champ

At just 6 lbs, the Aria V2 sets a new standard for infant car seat weight. This feather-light design makes it easy to carry your baby from the car to a coffee shop, into a store, or up a flight of stairs.

Included FootCover

The included All-Weather FootCover keeps your little one secure, comfortable, and perfectly protected in every season.

Large Canopy

Extra-large, UPF 50+ canopy with pop-out sunshade and ventilation for airflow.

Feature-Packed Base

The Aria V2 features the SmartSecure® System, Anti-Rebound+ Panel, and Load Leg for maximum safety and peace of mind.

A Closer Look

Ergonomic aluminum carry handle designed for both lightweight portability and stability.

Effortlessly adjust the 5-point no-rethread harness height as your baby grows without removing or rethreading straps.

Side view of a gray and silver UPPAbaby Cruz V2 stroller with an ARIA infant car seat attached.

Direct attachment for Vista and Cruz strollers + convenient adapters for Minu and Ridge.

A gray UPPAbaby infant car seat with a black padded cover is shown on a light purple background. "UPPAbaby" and "SIP" are visible.

Included All-Weather FootCover ensures baby is secure, cozy, and covered in all seasons.

A gray car seat base with a support leg is isolated on a light blue background. The base is for a child's car seat.

Base features an adjustable load leg for added stability and energy absorption, plus a base foot with four positions to fit different seat angles.

Overhead shot of a black car seat base with blue accents, showing various installation instructions and a built-in level indicator.

SMARTSecure® System with red-to-green visual indicator installs in seconds.

Description

The UPPAbaby Aria V2 is the lightest infant car seat on the market, weighing just 6 lbs. It is engineered to simplify life for busy parents by combining an incredibly light carrier with a full suite of premium safety features. The Aria V2 ensures you can move from car to stroller with ease, offering a secure and comfortable ride for your baby. This seat is the ideal choice if you prioritize a seamless, lightweight travel system without compromising on safety or convenience.

The Perfect Fit for Life on the Go

You need a car seat that adapts to your active lifestyle. The UPPAbaby Aria V2 excels in portability and ease of use, making every outing less stressful. Its unique combination of features makes it an ideal travel solution for families who frequently use ride-shares, travel by air, or simply want to lighten their load.

Ultra-Lightweight Design for Effortless Portability

At just 6 lbs, the Aria V2 sets a new standard for infant car seat weight. This feather-light design makes it easy to carry your baby from the car to a coffee shop, into a store, or up a flight of stairs. The ergonomic aluminum carry-handle provides both comfort and stability, ensuring you can manage your baby's weight and the carrier's weight with ease.

Enhanced Safety Features for Peace of Mind

You never have to compromise on safety with the Aria V2. This car seat comes with a suite of advanced safety features to protect your child from all angles.

Load Leg: The included base has an adjustable load leg that extends to the vehicle floor, providing increased stability and absorbing crash forces.
Anti-Rebound+ Panel: An additional safety panel on the base helps to reduce rotation and rebound in the event of a frontal or rear-impact collision.
Side Impact Protection: The carrier's shell is lined with energy-absorbing EPP foam for advanced side impact protection.
European Belt Routing: For baseless installations, the European Belt Routing method provides a more secure fit, which is especially useful for travel or when using ride-shares.

Engineered for a Simple and Secure Installation

A car seat is only safe when it's installed correctly. The UPPAbaby Aria V2 simplifies installation with intuitive technology that provides visual confirmation and a secure fit every time.

SmartSecure® System: This system features a red-to-green visual indicator that tells you when the base is correctly installed in seconds.
Auto-Retracting LATCH: The base's LATCH connectors automatically retract, making it easy to achieve a tight, secure installation.
Built-in Lock-off: For seatbelt installations, the built-in lock-off ensures the vehicle seatbelt is securely locked into place.
Dual Bubble Levels: The base includes dual bubble level indicators to confirm you have the correct alignment for a safe installation.

Designed for Comfort, Convenience, and a Long-Term Fit

The Aria V2 is built to be a comfortable space for your baby and a convenient tool for you.

From Preemie to Toddler: The two-piece Robust Infant Insert ensures a proper fit for preemies starting at 4 lbs and can be used for babies up to 4 months old. The carrier is suitable for children up to 30 lbs and 30 inches.
No-Rethread Harness: The effortless no-rethread 5-point harness and 25 preset headrest positions allow you to adjust the fit as your baby grows without the hassle of re-threading straps.
All-Weather Comfort: The extra-large, UPF 50+ canopy with a pop-out sunshade and ventilation offers excellent protection from the sun and elements. An included All-Weather FootCover keeps your baby cozy in all seasons.
Machine-Washable Fabrics: Messes are inevitable. The seat and canopy fabrics are removable and machine-washable, making cleanup simple. All fabrics are Fire Retardant Free through UPPAbaby's DualTech™ fabrics and are GREENGUARD® Gold Certified for healthier air quality.
Travel System Compatibility: The Aria V2 offers a direct attachment to UPPAbaby Vista® and Cruz® strollers, creating a seamless travel system. You can also use convenient adapters for the Minu® and Ridge® strollers. The carrier is also FAA certified for aircraft use, making it ideal for air travel.

Key Features and Specifications

Age/Weight Range: Approximately 0–1 years, or 4 lbs - 30 lbs and up to 30” in height.
Carrier Weight: 6 lbs (without canopy and insert).
Base Weight: 12.6 lbs.
Carrier Dimensions: 24.5” L x 17” W x 18.5” H.
Base Dimensions: 23.9” L x 14” W x 15.2” H.
Frame: The narrow 17” wide footprint of the base helps maximize space in your backseat, especially when you need to fit multiple car seats.
What's Included: Carrier, Base, Two-Piece Robust Infant Insert, All-Weather FootCover, and Product Lifetime Warranty.

Frequently Asked Questions (FAQ)

Q: How does the UPPAbaby Aria V2 compare to the UPPAbaby Mesa V2? A: The Aria V2 is significantly lighter than the Mesa V2, weighing just 6 lbs compared to the Mesa V2's 9.9 lbs. While both seats offer premium safety and ease of use, the Aria V2 is the better choice if your primary goal is portability and lightweight travel.

Q: Can I install the Aria V2 without the base? A: Yes, you can install the Aria V2 carrier without its base. It includes European Belt Routing for a secure installation using your vehicle's seat belt, which is an excellent option for travel or ride-shares.

Q: Is the UPPAbaby Aria V2 car seat FAA approved for air travel? A: Yes, the UPPAbaby Aria V2 carrier is FAA certified for aircraft use when used according to the instruction manual. The base is not approved for aircraft use.

Q: What is the benefit of the SmartSecure® System? A: The SmartSecure® System simplifies installation by providing a red-to-green visual indicator that confirms when you have achieved a secure and correct fit in your vehicle. This eliminates guesswork and gives you peace of mind.

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UPPAbaby Aria V2 Lightweight Infant Car Seat - Declan (Oat Melange)

UPPAbaby Aria V2 Lightweight Infant Car Seat - Declan (Oat Melange)