Maxi Cosi Pria LX Convertible Car Seat
The Maxi Cosi Pria LX Convertible Car Seat is a non-ISOFIX convertible car seat designed to support children from newborn to approximately 4 years of age, offering trusted Maxi-Cosi safety, compact sizing and easier everyday usability for Australian families.
The standard Maxi Cosi Pria LX uses Maxi-Cosi’s SMART Lock® seatbelt installation. This gives families flexible installation options across different vehicles while still delivering a secure and practical setup.
The Maxi Cosi Pria LX stands out for its compact external sizing, generous internal comfort and innovative SMART Guide® top tether routing system, helping make daily travel safer and easier for parents.
Key Features
- Suitable from newborn to approximately 4 years
- Non-ISOFIX convertible car seat using SMART Lock® installation
- SMART Guide® top tether routing system for easier daily use
- Compact design suitable for many smaller vehicles and 3-across configurations
- Extended rearward-facing to approximately 30 months
- SMART Lock® belt system provides a secure and clear installation path
- Air Protect® superior side impact protection technology
- Built-in rebound bar for simple and secure installation
- 11-position adjustable headrest
- Innovative V-harness system expands as the headrest is adjusted
- Bamboo wicking fabric helps keep baby cool and comfortable
- Over 200 strategically placed ventilation air vents
- 5 forward-facing recline positions and 1 rearward-facing recline position
- Magnetic harness holders for easier access
- Machine washable removable covers
- Plush newborn insert for additional support
- Maxi-Cosi Lifetime Warranty and Accident Exchange Program
- Supportive local Maxi-Cosi customer service team
This is the standard seatbelt-installed Pria LX model Convertible Car Seat
SMART Guide® Top Tether Technology
The SMART Guide® system is one of the standout features of the Maxi Cosi Pria LX.
- Allows the top tether to remain connected during everyday use
- Creates a clearer space when placing your child into the seat
- Helps reduce common installation mistakes
- Designed specifically for Australian family vehicles
- Makes daily use easier during daycare drop-offs and busy routines
SMART Lock® Installation System
The Maxi Cosi Pria LX uses Maxi-Cosi’s SMART Lock® seatbelt installation system instead of ISOFIX connectors.
This non-ISOFIX setup provides a secure and practical installation path while offering flexibility when moving the seat between vehicles.
Compact Design for Australian Cars
The Maxi Cosi Pria LX is one of the most compact convertible car seats available in Australia.
- Compact rearward-facing footprint creates additional front passenger space
- Narrow external width assists with many 3-across seating configurations
- Suitable for smaller SUVs, hatchbacks and family sedans
- Designed to maximise comfort for both your child and other passengers
Comfort for Everyday Travel
The Maxi Cosi Pria LX combines practical safety with comfort-focused features for everyday family driving and longer road trips.
- Bamboo wicking fabric helps regulate temperature
- 3D mesh ventilation promotes airflow and breathability
- Plush newborn insert provides additional support
- Most lay-flat rearward-facing recline in its class
- Adjustable headrest and V-harness grow with your child
- Magnetic harness holders simplify getting your child in and out
Zero Gravity Rearward-Facing Position
- Extended rearward-facing to approximately 30 months
- Flatter recline angle designed to help reduce head flop
- Supports safer and more comfortable travel for younger babies
Professional Car Seat Fitting Available
When you purchase your Maxi Cosi Pria LX from Bubs n Grubs, our Brisbane-based team can assist with professional child restraint fitting and installation guidance.
Our ACRI-trained installers regularly help families with rearward-facing setup, harness adjustment and vehicle fitment checks to help ensure your restraint is installed safely and correctly.
Learn More About Car Seat Installation
Specifications
- Product weight: 9.8kg
- Forward-facing dimensions: 43w x 65-79.5h x 49d cm
- Rearward-facing dimensions: 43w x 43h x 53d cm
- Carton weight: 11.8kg
- Carton dimensions: 45.5w x 68h x 51.5d cm
- Age range: Newborn to approximately 4 years
- Harness type: Adjustable V-harness system
- Recline positions: 5 forward-facing and 1 rearward-facing
- Extended rearward-facing to approximately 30 months
The Maxi Cosi Pria LX delivers an excellent balance of compact sizing, trusted safety and practical everyday usability for Australian families wanting a premium non-ISOFIX convertible car seat.
With SMART Guide®, SMART Lock®, Air Protect® technology, premium comfort features and Maxi-Cosi’s trusted local support, the Maxi Cosi Pria LX remains one of Australia’s most popular convertible car seats.
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FAQ – What Parents Want to Know
Is the Maxi Cosi Pria LX ISOFIX compatible?
No. The Maxi Cosi Pria LX is the standard non-ISOFIX version and uses Maxi-Cosi’s SMART Lock® seatbelt installation system.
What is the difference between the Pria LX and Pria LX GCELL?
The Pria LX GCELL includes ISOFIX compatibility and Maxi-Cosi’s GCELL side-impact protection technology, while the standard Pria LX is a non-ISOFIX model using SMART Lock® seatbelt installation.
Is the Maxi Cosi Pria LX suitable for smaller vehicles?
Yes. The compact design makes the Maxi Cosi Pria LX popular for smaller vehicles and many 3-across seating configurations.
How long can my child rear-face in the Pria LX?
The Maxi Cosi Pria LX supports extended rearward-facing travel to approximately 30 months.
Does the Maxi Cosi Pria LX include side impact protection?
Yes. The Pria LX includes Maxi-Cosi’s Air Protect® side impact protection technology for additional head protection.
Personally Reviewed by Frank & Judy
The Maxi Cosi Pria LX Convertible Car Seat has been carefully inspected and tested in Brisbane by our owners Frank and Judy. When reviewing convertible car seats, they focus on correct installation, ease of adjusting between rear-facing and forward-facing modes, harness fit and overall safety compliance with Australian Standards. They also assess how well the seat fits in different vehicles, ease of daily use for parents and how comfortably it supports your child as they grow. With nearly two decades of hands-on experience in baby products, they ensure every convertible car seat we offer is safe, practical and suited to real-world Australian family use.
Maxi Cosi Accident Exchange Service
In the event of a car accident, your Maxi-Cosi child restraint may have unseen damage caused by crash forces. Maxi-Cosi’s Accident Exchange Service offers new-for-old replacement support in eligible situations, helping ensure your child continues travelling safely.
- Complete the Maxi-Cosi Accident Exchange Form within 31 days of the accident
- Provide a police report or insurance claim
- Submit all required documentation before collection is arranged
- Receive a comparable replacement child restraint through Maxi-Cosi
The Bubs n Grubs Car Seat Difference
 | Australia Wide DeliveryWe Deliver Car Seats Australia Wide & with Free Transit Insurance. |  | Full Australian WarrantyReal Warranty backed by Large Australian Manufacturers. |
 | Only The Best BrandsWe have chosen the best brands of car seats available. They offer top quality, safety, value & practicality. |  | Optional AccessoriesOur car seats have heaps of optional extras designed to match and simplify your life. |
 | Meets Australian Safety StandardsAll our car seats meet the latest mandatory Australian Safety Standards for peace of mind. |  | Practical Car SeatsNo Matter What your vehicle is, we have easy to use Car Seats to match your needs. |
 | Car Seat Fitting ServicesWe are ACRI Accredited Installers, We can fit & Install your Car Seat for your peace of mind |  | Safe and Secure PaymentsWe use 256-bit SSL encryption and Braintree by PayPal. Direct deposit is also available. |
 | Product Video ReviewsWatch expert video reviews showing features and why our trailers are market leaders. |  | Expert AdviceAs Car Seat specialists, we help you choose the best car seat for your specific needs. |
 | Award Winning SupportOur local English-speaking support team assists quickly via our online help desk. |  | Ability to CustomiseCustomise your car seat with a range of accessories to suit your lifestyle. |
Important Information
- Always read and follow the manufacturer’s instructions before use.
- Ensure this restraint is suitable for your child’s age, height, and weight.
- This child restraint must be installed and used correctly to provide protection.
- Do not use this restraint if it has been involved in an accident.
- Check the manufacturer’s label for the date of manufacture and expiry.
Why Parents Choose Bubs n Grubs
Expert Nursery Advice
Our Brisbane team provides one-on-one guidance to help you choose the right
Convertible Car Seats for your family, with practical advice based on real in-store experience.
Australian Authorised Retailer
We are an Australian Authorised Maxi Cosi Retailer, with full Australian manufacturer warranty support for genuine peace of mind.
Fast, Insured Delivery Australia-wide
We dispatch daily across Australia with insured shipping, plus SMS and email tracking to keep you updated end-to-end.
Exclusive Bonus Value
Enjoy bonus gifts, value bundles and limited-time upgrades on selected baby products, available only at Bubs n Grubs.
Family-Owned Brisbane Baby Store
Proudly Brisbane-based since 2006, we support Aussie families with trusted baby gear and helpful advice in-store and online.
Our Price Beat Guarantee
All images are for illustration purposes only.
Lesley (verified owner) 8 months ago
Really lovely seat, my grandson seems really cosy and comfortable in it having moved out of his capsule. Very easy to fit and very user friendly.
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Natasha Sanayeh (verified owner) 1 year ago
Bubs n Grubs were fantastic to deal with, were transparent about delivery prior to Christmas.
Seat is great and adjustments can be made so easily, which is great for people like me who have tried several chairs and absolutely loses my marbles when I need to get somewhere and the adjustment cannot be made quickly. Chair is a gamechanger!
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Sarah Malloy (verified owner) 1 year ago
I managed to install this seat easily at 35 weeks pregnant, which says a lot! I love not having the top tether in the way to get baby in and out which is what made our previous RF seats a bit annoying.
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Alayr Burnell (verified owner) 2 years ago
Love our Pria LX.
We tried another car seat while hiring a car and tightening and loosening the tether was way more inconvenient than I’d even imagined. It adds that extra layer of frustration to a cup that can be balancing on full already. The seat has a great safety rating and installers are familiar with it. Baby seems comfortable. We have purchased more for each of the grandparents and are about to buy another for our second car. Install is easy and now that I’ve seen it done I would attempt myself if required.
Pretty easy to adjust and wash covers/inserts.
Instructions could provide more information though. General safety information and when/why adjustments need to be made could be included and would be super helpful to new parents.
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Brooke King (verified owner) 2 years ago
Bubs n Grubs were fantastic to deal with, kept me up to date about my order and the seat was delivered perfectly and smoothly to Tasmania.
Very happy with the seat, the tether is a game changer one less thing to mess around with or worry about when putting a baby / toddler in.
I got the ISOfix option and it was easy to install.
Overall happy with the seat and would purchase from BubsnGrubs again.
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Jade Triplett (verified owner) 2 years ago
The car seat is everything I wanted and more.
The tether? Perfection. It’s extended rear facing, it’s slim, stunning and comfortable.
The adjustable headrest and easy adjust straps make getting babe in and out of the car is brilliant too.
I recommend this seat so very highly!!!
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Tara Widdrington (verified owner) 2 years ago
Wow, what a seat! I have been a true Britax fan since our early car seat buying days and the seat was a little gamble but I have no hesitation to recommend this seat to anyone in the market for a low fuss seat that’s easy to install. It’s very compact and fits nicer than the capsule did. Getting bub in and out of the seat is great not having to release and tighten the tether. I look forward to rear-facing for the next few years!
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Megan Stone (verified owner) 2 years ago
Super easy to install ourselves and we love not having to loosen/tighten the tether strap each time we use the car seat! Highly recommend this product.
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Kelly Angus (verified owner) 2 years ago
I love everything about this car seat. Bub is so comfortable and happy in it (he hated his capsule). We went on a road trip/short holiday last week (4-hour drive each way) and bub didn’t complain once/slept for most of the drive there and back. If bub had been in his capsule it would’ve been a different story (so I’m very grateful that Bubs n Grubs delivery estimates were accurate and that the seat arrived on time, a couple of days prior to us starting our road trip). 10/10
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Brianna Amos (verified owner) 2 years ago
This car seat is amazing. Love that there is no site tether on one side makes getting my daughter in and out of the Ute so much easier. Every bit helps when your rushing with a screaming child to get home.
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