Diono Radian RXT Car Seat Review

Diono Radian RXT Convertible Car Seat Review

Diono RXT Car Seat Product Description

Installing a convertible car seat is of utmost importance when driving with children. Your kids will spend countless hours from the earliest days of their infancy through the toddler years in the car. Being a parent, it is your responsibility to assure them safety and comfort while on the road. The Diono Radian RXT is a convertible car seat designed with all safety features and many other excellent advantages. It is known to be the manufacturer of the safest car seats and accessories in Canada.

The Radian line of Diono car seats differs a lot from conventional convertible seats in that is features its 3-in-1 design. It means you can use in three different configurations – rear-facing infant seat, a forward-facing seat and a booster seat for kids up to 120lbs.

The Radian R series includes three models – R100, R120, and Radian RXT. Though there is not much difference between three models, Radian RXT is the most recommended model because of added features and improved dimensions.

Diono Radian RXT vs. R100 vs. R120

Radian R100

·         Rear-Facing Weight Limit: 5-40 lbs

·         Forward-Facing Weight Limits: 20-65 lbs

·         Booster Weight Limits: 50-100 lbs

Radian R120

·         Rear-Facing Weight Limits: 5-45 lbs

·         Forward-Facing Weight Limits: 20-80 lbs

·         Booster Weight Limits: 50-120 lbs

·         Improved structure for higher FF weight limit

·         Newborn support pillows

·         Memory foam under bum for comfortable sitting

Radian RXT Specs

·         Rear-Facing Weight Limits: 5-45 lbs

·         Forward-Facing Weight Limits: 20-80 lbs

·         Booster Weight Limits: 50-120 lbs

·         Added structural support for FF weight limit

·         Infant support pillows

·         Memory foam under bum for comfortable sitting

·         Adjustable head wings

·         User manual for using the shoulder belt for booster and head wings settings

Diono Radian RXT Convertible Car Seat Review

Safety Features of Diono Radian RXT Car Seat

The Diono Radian car seat is worth purchasing from a safety point of view because of following features:

A Sturdy Steel Frame

A highly durable and strong steel alloy frame grants the Diono Radian RXT the ability to withstand the force of the collision. It protects your children in case of an accident and stands up to daily use for years.


Combining the steel frame construction and Super Latch feature, Radian RXT is totally safe and easy to install. The latch is made of a collision-resistant material with an ability to hold RF weight of up to 45 lbs and FF weight of up to 80 lbs.  Use car’s seat belt if your child reaches the maximum weight limit.

Top Tether

Though Diono always recommends the use of a top tether, the Radian RXT is exceptionally designed so that the use of top tether is never required.

Safe Stop

The SafeSTOP feature reduces the forces on child’s neck, head and chest during a collision. It’s a load-limiting device that adds protection for children under 40 pound who have a heavier head, but less neck strength. It is the only energy-absorbing car seat in the world designed to assure highest level of stability and security during a collision.

Airplane Certified

It is certified by the FAA for use while traveling by airplanes. It’s so manageable and ensures that your child is seated safely on any flight.

NCAP Crash Tested

The Diono Radian RXT passes the NCAP’s rigorous crash testing in the United States and Europe. This test ensures that the seat withstands even a higher force during a severe crash if the child is properly strapped inside it.

Diono used to recall and encourage registered owners and customers to inspect the seats for collision resistant so that it won’t impact children’s safety while traveling.

Diono Radian RXT Manual and Installation Instructions

Rear-Facing Installation

Good news – you don’t need to use rolled towels to achieve a proper reclining angle. Simply, attach the rear-facing base to install Radian RF. If your child can sit upright without assistance, you can use angle adjuster accessories to make it more upright and give the front seat passengers more legroom.

The RF belt path is enclosed in plastic. So if you have big hands, fitting the seat belt or SuperLATCH for tight installation is easy. Otherwise, the easiest way is to pull the belt in the direction of closed belt path to get it tight.

Forward-Facing Installation

Radian FF is easier to install than RF because you can pull away the cover to access the belt path. However, vehicle buckles can cause the problem because the seat belt will bunch in the latch plate as you pull it tighter.

Radian RXT Models manufactured after 2016 come with the adjustable bottom and safe stop load limiter that allows you to increase the amount of time over which your child feels crash forces.

Latch Installation

The SuperLATCH push-on style connector comes as four attachment pawls. The connector is accompanied by an adjuster on one side of the strap and storage areas to store Latch and top tether connectors. You can use tether strap in RF and FF, but tethering a forward-facing child restraint with a harness if strongly recommended.

Installing Booster Seat

To install the booster seat in the easiest way, simply set the booster in the seat and strap your infant properly using the seat belt.

You can also watch video tutorials on the Internet to get help with installing the Diono Radian RXT car seat.

Diono Radian RXT Car Seat Benefits

What do you most expect from your convertible car seat? It should adjust well as your child grows, right? With lots of adjustment features and convenience, the Diono Radian RXT meets your expectations.

Multiple Height Positions

The Diono Radian RXT car seat promises to accompany you through your child’s infancy to booster seat years. Thanks to its five separate height positions that can be easily set up to fit most children.

Adjustable Reclining

You can set the seat in two reclining positions to allow adjusting the seat according to your child’s comfort. In rear-facing mode, a separate food is used to keep the seat in place and prevent it from reclining to carry your baby in the proper position.

Rear-Facing Tether

The adjustable rear-facing tether brings more safety to your child. You can easily connect it to the metal rings that are specially designed seat tethering.

Fit 3 Across

The Diono Radian RXT has a narrow width and a clever design that allows three convertible car seats to fit at one time and in the same back row. It is helpful if you have multiple children or a small backseat. It also easily fits into any airline seat making it airplane friendly car seat.

Memory Foam Padding

It allows safety and comfort to your child in the car or airplane, especially when you’re going on long trips. The padding retains its durability and functionality over time to support your child for years.

Cushions Support

These removal cushions let your baby sit in a proper position and offer comfortable side padding to cradle them in the seat.

Cup Holders

The Diono Radian Car Seat comes with a cup holder to hold cups and snack containers. You can utilize additional slots to add more Diono cup holders.


This fully-features convertible car seat is available in many colors like Daytona, red, purple, Radian RXT shadow, plum, storm as well as spring and trekk prints.

Diono Radian RXT Convertible Car Seat, Trekk

Diono Radian RXT All-In-One Convertible Car Seat, Black Cobalt

Diono Radian RXT All-In-One Convertible Car Seat, Shadow

Recently, four new colors have been introduced that include Diono Radian RXT black cobalt, black scarlet, black plum and black mist.

Diono Radian RXT All-In-One Convertible Car Seat, Black Plum


Expiration dates for models manufactured before May 2016 are eight years as harnessed seats and ten years as belt-positioning seats. The newer models have ten-year expirations from the date of manufacturing. Diono also facilitates buying covers and making replacement after in the event of an accident.

Price of Diono Radian RXT Car Seat

Before you buy, don’t forget to compare the price and check-out ratings and reviews from previous users. Chances are you’ll get a coupon or the best deals or that will help you get the product at the cheapest deal on the Diono Radian RXT car seat sale.

This high-end convertible car seat will cost you around $300 if you buy from its official website or other popular stores. The cost also varies depending on where you buy it from, and on the color you pick.

You can easily fold the seat, store it in Diono car seat travel bag and carry it around as a backpack. For cleaning the seat, you need to remove the harness by unscrewing the panel near the hip area. Watch instruction videos to know how to remove and wash the Diono Radian RXT car seats carefully.

Needless to say, the Diono Radian RXT is the best buy to give your baby full protection while driving. We hope this review provide you helpful information and assist you in the decision-making process to buy you a high-end convertible car seat.