Diono Radian RXT Convertible Car Seat


Diono Radian RXT Convertible Car Seat Review

The Diono Radian RXT Convertible Car Seat is a seat that parents can use from infancy through to older childhood. It was designed to be simple to adjust so a child can remain safe in the seat from 5 lbs to 125 lbs without any hassle for parents. A five point harness and plenty of energy absorbing padding keep the child safe and secure while situated in the seat.


One thing you will notice straight away is the Diono Radian RXT convertible car seat is built to be strong and secure with plenty safety features in place to protect children of all ages. The supplied Infant padding can be used for babies in the rear facing position from 5 lbs through to 45lbs which is aligned with the latest NHTSA safety guidelines. The Diono Radian RXT comes fitted with energy absorbent foam around the head and body which affords generous all-round protection. The steel alloy reinforced frame and sidewalls adds that extra layer of protection against any impact by keeping the child safely cocooned in the reinforced inner shell. Adjustable neck and head support is also possible to ensure the best fit for the baby/child so that the energy absorbent foam has it optimal effect in protecting your child from infant stage through to toddler and beyond.

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Ease of Use

The features which are part of the Diono Radian RXT Convertible Car Seat include cushion covers are completely machine washable to provide an easy solution against those inevitable spills, although they should be line dried for added longevity. The Diono Radian RXT Convertible Car Seat is also FAA airline approved, which gives parents an opportunity to travel with their children without worrying for their safety and comes as standard with a deep cup holder for easy access at anytime. The height and weight limits, along with the design of this convertible car seat, offers parents the ability to use just one car seat for the duration of childhood, by simply adjusting it as their child grows. Installation is simply with the patented SuperLatch system which is useful if you are thinking of installing more than one of these convertible child seats in your car.

Additional Features

Another key selling feature for the Diono Radian RXT is it’s 10 year lifespan, which makes sense when a person considers just how long this seat can be used by a child. QR codes are also added on all parts of the seat, so parents only need to scan the code with their smartphone to be taken directly to relevant portions of the car seat’s manual or even watch the video online!. Additionally, breathable fabric is used to keep the car seat comfortable for those longer journeys on the road. Extendable panels and a deeper base are another nice touch to ensure the best use and comfort throughout the growing cycle.

Warranty & Support

Diono offers a 12 month warranty for the Radian RXT convertible car seat. Customers can download user manuals and installation support documents from the Diono website

Review Summary

The Diono Radian RXT Convertible Car Seat is a car seat that has really thought of all the needs of children from infancy to later elementary school age. It allows parents to purchase a single car seat while their child is in infancy, and use the same car seat all the way up until they reach 125 lbs. The Diono Radian RXT convertible car seat provides ample safety protection in the form of steel alloy frame reinforcements and plenty of thick energy absorbent padding is included, to keep children safe in the instance of a crash. The wide variety of colors also makes this car seat aesthetically pleasing and for narrow back seats or 3-across installations, the Diono Radian RXT is one of the best options on the market and as such, gets the reviewist.com award for excellence.