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Maxi-Cosi Pria Max+ All-in-One Baby Convertible vs Maxi-Cosi Romi 2-in-1 Convertible Car Seat, Infant

Updated August 2026 — Maxi-Cosi Pria Max+ All-in-One Baby Convertible leads on capacity and weight.

The Maxi-Cosi Pria Max+ offers more versatility and features, making it a better long-term investment, while the Romi is a budget-friendly, lightweight option.

Why Maxi-Cosi Pria Max+ All-in-One Baby Convertible is better

Versatility

Pria Max+ can be used in three modes.

Safety Features

Pria Max+ accommodates a broader weight range.

Comfort

Pria Max+ has more extensive fabric options.

Why Maxi-Cosi Romi 2-in-1 Convertible Car Seat, Infant is better

Portability

Romi is one of the lightest car seats available.

Price

Romi is significantly cheaper.

Ease of Transport

Romi includes a carrying strap.

Overall score

Maxi-Cosi Pria Max+ All-in-One Baby Convertible
85
Maxi-Cosi Romi 2-in-1 Convertible Car Seat, Infant
75

Specifications

SpecMaxi-Cosi Pria Max+ All-in-One Baby ConvertibleMaxi-Cosi Romi 2-in-1 Convertible Car Seat, Infant
Price$329.99$149.99
Modes32
FabricEcoCareEcoCare
Cup Holders21
Safety RatingMeets StandardsMeets Standards

Dimension comparison

Maxi-Cosi Pria Max+ All-in-One Baby ConvertibleMaxi-Cosi Romi 2-in-1 Convertible Car Seat, Infant

Price Comparison

The Maxi-Cosi Pria Max+ All-in-One Baby Convertible Car Seat is priced at $329.99, while the Maxi-Cosi Romi 2-in-1 Convertible Car Seat is significantly cheaper at $149.99. This makes the Romi about 54% less expensive than the Pria Max+, which may be a crucial factor for budget-conscious parents. Despite the price difference, both car seats offer essential safety features and comfort for your child. However, the Pria Max+ justifies its higher price with additional features and versatility, appealing to families looking for a long-term investment.

Design and Versatility

When it comes to design and versatility, the Pria Max+ stands out with its all-in-one functionality. It can be used in three modes: rear-facing for infants, forward-facing for toddlers, and as a booster seat, accommodating children from 5 to 100 lbs. In contrast, the Romi offers a simpler 2-in-1 design, serving both rear-facing and forward-facing positions for children weighing between 5 to 50 lbs. While the Romi is lightweight and easy to transport, the Pria Max+ provides a broader range of use, making it a better long-term option for growing families.

Safety Features

Safety is paramount when it comes to car seats, and both the Pria Max+ and Romi meet or exceed federal safety standards, including the federal Side Impact standard. The Pria Max+ is engineered to accommodate a broader weight range and includes features like an easy in-and-out harness and a magnetic chest clip for convenience. The Romi, while also safe, focuses on being lightweight and portable, making it an excellent choice for travel but with a slightly limited weight capacity. Parents prioritizing extensive safety features might lean towards the Pria Max+.

Comfort and Fabric Quality

Comfort is a strong point for both car seats, but they differ in their fabric offerings. The Pria Max+ features EcoCare fabric made from 100% recycled plastic bottles, which is soft, breathable, and machine-washable. It also boasts PureCosi™ fabrics that are free from added fire retardant treatments, ensuring a cozy environment for your child. The Romi shares similar fabric qualities, utilizing EcoCare and PureCosi fabrics, but is designed to be more lightweight. Both options provide comfort, but the Pria Max+ might have an edge due to its more extensive range of features.

Ease of Use

In terms of ease of use, the Pria Max+ excels with its one-click LATCH connectors that simplify installation. The car seat also includes easy in-and-out harness holders to keep straps out of the way during use. While the Romi is lightweight at just over 9 lbs., making it easy to transport, its installation features are less robust compared to the Pria Max+. The Pria Max+ provides a more user-friendly experience, especially for parents who frequently move their car seat between vehicles.

Portability and Travel Friendliness

The Romi shines in portability, being one of the lightest convertible car seats available at just over 9 lbs. It is designed for easy transport, making it an ideal choice for families on the go or those who travel frequently. The added convenience of a carrying strap enables hands-free transport, enhancing its travel-friendly capabilities. While the Pria Max+ is not as lightweight, it compensates with additional safety features and versatility. For parents prioritizing travel, the Romi may be the preferable option.

Maintenance and Cleaning

Both the Pria Max+ and Romi feature machine-washable fabrics, making maintenance straightforward. The Pria Max+ includes two removable, dishwasher-safe cup holders, enhancing its practicality for everyday use. The Romi also boasts removable fabrics, which can be easily cleaned, ensuring that both seats remain in good condition over time. However, the added features of the Pria Max+ may appeal to parents looking for extra convenience when it comes to maintaining cleanliness.

Which should you buy?

Choosing between the Maxi-Cosi Pria Max+ All-in-One Baby Convertible Car Seat and the Maxi-Cosi Romi 2-in-1 Convertible Car Seat ultimately depends on your family's specific needs. If you are looking for a versatile, long-term investment with extensive features and safety, the Pria Max+ is worth the higher price tag at $329.99. However, if you prioritize portability and budget, the Romi at $149.99 offers a lightweight option that still provides essential safety and comfort. Both seats have their merits, but your choice should align with your lifestyle and preferences.