Maxi-Cosi Pria 70 Convertible Car Seat Review (2018)

Maxi-Cosi Pria 70 Convertible Car Seat (Black Gravel)

Choosing the right car seat for your child is important if you’re going to be taking them on journeys with you. The law expects that your child is appropriately restrained within the vehicle, so using a car seat that complies with certain standards is essential.

Laws aside, you’d be ill-advised to travel in your car with a young child being restrained by a regular seat and seat belt. Doing so could lead to them being seriously injured in the event of a road accident. 

The car seat that you need will depend on a number of factors. Broadly speaking, you can opt for a convertible car seat, or a non-convertible type. Convertible car seats can adjust to support growing loads, meaning you can continue to use and adjust them as your child grows in size and weight.

However, they are also typically more expensive than non-convertible types. Nonetheless, they can be a sound investment upfront, preventing you from having to repeatedly switch out your seats whenever they no longer fit. 

Below, we’ll look at the Maxi-Cosi 70 Convertible Car Seat, which is a mid-range convertible seat that can ferry a child about for many years throughout their childhood. 

Maxi-Cosi Pria 70 Convertible Car Seat

The Maxi-Cosi is a 2-in-1 convertible car seat, which means that it can be used in both a rear- and front-facing position. The seat is one of several varieties of car seat produced by the brand, with an average weight range.

In its rear-facing position, the seat is designed to support weights of 4-40 lbs., and in its front-facing position, it supports from 22-70 lbs. It is also compatible with a range of accessories designed to improve comfort and support for the occupant. 

The design of the seat, like all convertible car seats, focuses upon flexibility and a great range of motion, which is how it is able to cater to such a broad range of occupants.

This is in part achieved through the Deep Recline Adjustment System, which allows the seat to be reclined through multiple positions. The design choices made in the creation of the Maxi-Cosi Pria 70 were also contributed towards by car seat safety experts, creating a seat that’s not only flexible and durable, but extremely safe, too. 

Price-wise, the Pria 70 seat is around what you'd expect out of a convertible car seat, by which we mean it is more expensive than non-convertible types.

However, there's a potential to save money in the long run when compared to buying a new car seat every time your youngster outgrows their previous one. What's more, it is around mid-range when compared to other convertible seats, so not too unreasonable. 

Who is this Car Seat For?

Maxi-Cosi Pria 70 Convertible Car Seat Review

This Maxi-Cosi car seat is perfect for a one-child family. With multiple children, you’ll constantly have kids of varying ages, heights and weights, all requiring their own car seat of a different specification.

However, with just a single child, the Maxi-Cosi car seat can grow and adjust to suit their weight. This means that you won’t have to fork out for multiple expensive car seats whenever your children outgrow their previous model. 

If you do have more than one child, then you may have an argument for using a different car seat. Although in theory you could have a Maxi-Cosi seat for each of your children, these convertible-type seats are typically more expensive than the non-convertible type. Thus, it’s better to work out whether it would be cheaper to buy an alternative.

Finally, think about the car in which you’ll be installing your car seat. For a single vehicle, the Maxi-Cosi makes perfect sense, as you’ll rarely need to detach or remove it from the vehicle, given the flexibility that it has around occupant height, weight and age.

However, if you use multiple cars to transport the kids, removing the cumbersome seat base can be tricky, and you may be better off using a car seat that has an easier to disassemble base unit. 

What’s Included?

It can be easy to get carried away with expecting the world from a retail package. The real focus here is on having a car seat that’s safe, secure and comfortable, and you of course get the main Maxi-Cosi car seat unit out of the box, as well as the base on which it is mounted.

A safe, secure and comfortable design is where the majority of your money goes when purchasing a car seat. As a result, there isn’t a great deal else included in the packaging, but that’s okay; most car seats don’t come with heaps of added extras.

What you do get in the way of extras with this seat is the removable seat pad, which doesn't have to be purchased separately. This is both machine washable, as well as safe for the dryer, and detaches easily through a snap-on, snap-off system. There’s also a holder for your child’s drinks, though it’s built into the design and is not removable for easy cleaning.

You can take our word on what’s inside the box, but for a closer look at exactly what this product looks like once it’s outside of the packaging.

Overview of Features

The Maxi-Cosi is top rated for safety and comfort, achieving a lot of positive attention for its consideration towards other vehicle users, too; that is, it won't limit space up front for passengers, which is a common problem for many car seats.

The design incorporates multi-directional energy management, absorbing and diverting impact energy away from the seat occupant to keep them comfortable and safe. The seat also uses a patented Air Protect system, offering greater protection through the intuitive use of air pockets in the design.

Compatible with children starting at a weight of 9 lbs. in the rear-facing position, the Pria 70 will support the same child right up to 40 lbs. At this point, the seat flips around to its forward-facing position to offer safe support up to 70 lbs. 

Side Impact Protection

Maxi-Cosi Pria 70 Convertible Car Seat, Total Black

This Maxi Cosi seat benefits from safety features that have been designed by car seat safety experts. A patented design system known as 'Air Protect' uses advanced cushioning to provide superior support to your child's head in the event of a collision.

Whereas many car seats simply use varying layers of thick padding, the Air Protect system uses air-filled pockets to create a design that has greater energy-absorbing properties.

This added protection is particularly strong around the sides, which are some of the most vulnerable points of the vehicle from your child’s perspective.

Ease of Cleaning

Maxi-Cosi Pria 70 Convertible Car Seat, Bohemian Red

When you're transporting a messy young baby or toddler around, you want to be reassured that they're not going to ruin your brand-new equipment with food and drink stains.

Luckily, the Maxi-Cosi Pria 70 features seat pad and harness covers that use snaps to quickly attach or detach. Should they get dirty, it’s just a case of snapping the covers off, and running them through the washing machine.

They can also be put through the dryer, too. The only drawback here is that you cannot remove the built-in cup holder that is included with the seat, meaning it could catch crumbs and liquids easily.

Reclining System

Maxi-Cosi Pria 70 Convertible Car Seat, Brown Earth

The ability to position this seat in front or rear-facing positions is possible thanks to a range of motions that can be achieved using the Deep Recline Adjustment System.

This system allows the seat to be reclined into 3 positions, making the seat far easier to install into your vehicle, tailoring it to the space available.

It also helps to ensure that your child is in the most safe and comfortable position possible, relative to their weight and height. Yet, it doesn’t result in limited legroom in the front passenger seat, a common problem seen in cheaper designs.

How to use the Car Seat

When setting up your Maxi-Cosi car seat, it's important to consider the right position for your child, which will be determined by their height, weight and age. For children of 4-22 lbs., or 18-40 lbs. and 40-inches or less, the seat should be used in a rear-facing position.

Alternatively, for children of 22-40 lbs., 34-43-inches and age of over 1 year, the seat should be used forward-facing. More specific instructions are available and can be consulted within the user guide, which is supplied alongside the car seat. 

There are a number of other accessories available for the Maxi-Cosi seat that might need to be set up alongside the seat itself. The body pillow is available for select seats, which adds extra comfort for your child as they grow.

Alternatively, the harness covers are suitable for increasing comfort where the harness meets the neck. These are just a couple of the numerous accessories available for the Maxi-Cosi convertible seat. Again, further information about setting up these components is available within the user manual for the accessories themselves.

In terms of ease of use, the instructions provided with the car seat are comprehensive and reasonably easy to get to grips with. However, we’ve found a lot of use in some instructional YouTube videos, such as this video on removing the cleanable covers, as well as this video on setting up the fiddlier rear-facing position. 


Safety 1st Grow and Go 3-in-1 Convertible Car Seat (Blue Coral)

Perhaps you’re looking for other potential alternatives, but are dead set on a convertible seat. In this case, the Safety 1st Grow N Go is a suitable option, with additional range of positioning available. Yet, despite this range of motion, the clever design is optimized to prevent the restriction of legroom in the front passenger seat.

It’s also accompanied by a cover that repels food and liquid stains, and can be easily washed. With these positives in mind, there are a couple of drawbacks. Firstly, the restraints are more difficult to secure than with some other models, plus the base is not easily transferrable from one vehicle to another. 

Britax Advocate ClickTight Convertible Car Seat, Venti

The Britax Advocate is another suitable convertible seat alternative. In terms of weight support, it’s around mid-range when compared to the Maxi-Cosi Pria, which has lesser weight limits, and the Grow N Go, which is capable of supporting heavier loads in the booster position.

The design of the seat includes a frame that’s constructed from durable steel, as well as an energy-absorbing base to protect against impacts.

The whole thing is straightforward to assemble with simple restraints, thanks to the ‘ClickTight’ system that is very easy to understand. However, it’s worth bearing in mind that this model doesn’t include any washable seat or restraint covers.

Of course, convertible car seats can be expensive purely owing to the range of features that they use, as well as the fact that they can be used for years without replacement.

Evenflo Maestro Booster Car Seat Thunder

If you’re looking for a much cheaper upfront investment and you’re happy to sacrifice some of that flexibility, then the Evenflo Maestro Booster Car Seat is a top-rated booster seat that’s a fraction of the price.

 Just bear in mind that the seat starts at a supported range of 22 pounds, as opposed to the Maxi-Cosi's 9 pounds, meaning it's not suitable for babies and very young toddlers. This seat can only be used in a front-facing position. 


If you’re looking for a convertible car seat that will grow as your child grows, then the Maxi-Cosi Pria 70 is a suitable choice. Though there are other good alternatives available, such as the Safety 1st Grow N Go or Britax Advocate, these alternatives have drawbacks that include a difficult-to-understand installation system and a lack of washable restraint covers, respectively.

You could also pick up a cheaper booster seat, but it wouldn’t be compatible with young babies or very young toddlers, so it’s less than ideal for a new or first-time parent.

However, there are some cheaper alternatives available that can support babies and will require a less steep upfront investment when you have a new baby and funds are tighter. It may just mean switching seats once or twice as your child grows. 

Overall, the Maxi-Cosi is a mid-range priced convertible car seat with heaps of flexibility and reusability. If you’re happy to pay more upfront for a product that will last for many years, then you should certainly consider it. 

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