The Radian Car Seat

Diono Radian car seat is one of the most highly-rated in the market.



Buying a new car seat for your baby is like choosing the right vehicle for your family. You need to look at the price, comfort, size, and safety features. With all the things that you must consider and with all the options you have, it will not be easy to decide which one to purchase.

To help you, we made a detailed review of one of the most highly-rated car seats in the market today. The Diono Radian Convertible has been one of the top choices for infant seats. As travel car seats experts, over a million parents are happy with its performance, especially with keeping their little ones safe. However, the question remains, is it the right option for you? Continue reading to find out.

What Are The Features Of The Diono Car Seat?

The infant car seat features an extended rear-facing capability. It is made with top-grade materials, and it has excellent safety features according to product reviews from verified customers online. If you are looking for just one car seat that you can use from infancy until your child is old enough for a booster seat, the Radian 3RXT is the best new car seat for you.

The manufacturer has integrated newborn baby features for this model.

The seat cover of Diono Radian is easy to remove and clean, making it a good choice for families who spend a lot of time in the car.

This convertible car seat of Diono is versatile and can accommodate children from 5-45 lb when rear-facing and children from 20-80 lb when forward-facing. Once your child is ready to sit without assistance, you can convert it to a booster seat until your child is up to 120 lbs.

The Radian’s booster seat modes make this very versatile and safe for comfortable baby positioning.

The forward and rear-facing booster seat with a cup holder has an aluminum reinforced headrest that is tall and is great for children who are not yet ready to sit without assistance but need a little boost of height.

Diono Radian has complete rear-facing protection that will protect your child in the rear facing the vehicle seat in the event of an accident.

The reinforced steel frame of the back seat is very comfortable and padded, with a strap system that allows you to secure tether strap to your child in place easily.

It is an integrated harness straps with a wedge that creates a lie-flat travel position pushing baby rear face up to avoid possible head trauma. The latch system makes this car seat a great choice for parents looking for a safe, secure, and comfortable option without compromising child safety.

Diono Radian also has a steel-reinforced cup holder for essential road trip drinks that is easily removable for cleaning.

Radian Car Seat - Black variant with high headrest. It has harness to support you child.

Can The 3RXT Keep Your Baby Safe?

To ensure that we provide you with an unbiased Diono Radian 3RXT review, we read several product reviews to see what real buyers think of this convertible car seat for infants. Safety-wise, most verified customers are happy with how it performs in accidents and sudden breaks.

One person who also wrote a Diono RXT review claimed that the convertible car seat kept his child safe in a recent car crash. The car seat is designed specifically to withstand sudden breaks and crashes into the front seat. It is made with an alloy of steel reinforced frame and EPS foam that surrounds the side walls to provide side impact protection to your little one. It also comes with a SafeStop energy-absorbing harness that keeps the child snugged properly in the car seat.

Did Diono Pass Safety Checks?

Fortunately, the Diono Radian 3RXT has been NCAP crash-tested, and it has passed all the safety standards with flying colors. Therefore, you are sure that it can protect your child in unwanted situations especially during long car rides.

Is Diono Easy To Install?

Based on another Diono Radian 3RXT review, the convertible car seat is easy to manual install as it utilizes SuperLATCH technology, which makes manual installation easy. You can transfer it from one car to a stroller or vice versa with ease.

How Does Diono Look Overall?

One notable factor that we read about in many product reviews was the narrow design of the convertible car seat without compromising child passenger safety. Over a million parents lauded its thinner seat because they found it beneficial to fit the seat belt the car without difficulty in most vehicles. It does not use so much space and will not compromise the comfort of the other passengers both in the back and front seats.

Diono Radian convertible car seat. Violet variant. It is very comfortable for it has thick pads. It has a cup holder.

Is The RXT Worth It To Buy?

The car seat grows with your child, and it has a 10-year expiration date. If you maintain it well, it can be passed along to your other children. It also has various booster seat modes. It is like buying multiple convertible car booster seats for the price of one, so to answer the question, yes, it is incredibly worth every penny.

Downsides Of Buying The Radian

Every good convertible car seat has its flaws, and the Radian RXT is no exception. According to an honest Diono Radian 3RXT review, there are three factors that most parents do not like about the baby seat. First, it is cumbersome. Although portable, it is challenging to bring when traveling. The parents also said that it is uncomfortable to carry around as its weight is equivalent to a bag full of baby accessories.

Another issue with the convertible car seat is its height. Many parents with small vehicles found the head and sides of the car seat to be too high. They said that it does fit inside the small vehicle, but it takes a great deal of effort to position and adjust it in the right way.

Lastly, it may not be the best choice for premature babies or smaller babies. It can accommodate infants 5 lb and beyond. Therefore, if the baby is smaller, you might need to buy additional infant inserts to keep seat bottom of the baby comfortable. Some parents do not like the idea of purchasing add-ons because it does bump up the price of just one car seat.

How Does Diono Compare With Other Brands?

Regarding the design and price, the Radian 3RXT is cheaper and narrower than most car seats in the market today. If you are looking for a car seat with those particular features, the Radian 3RXT is hard to beat and may be the best option there is. Nevertheless, looking at the safety features and other functionality, you will find other car seats to serve as better alternatives. Here is a list, to name a few.

Car seats for babies
  • Graco SnugRide SnugLock 35 – It is voted as the safest car seat.
  • Chicco KeyFit 30 – It is easy to install and most preferred by many in terms of convenience.
  • Nuna Pipa Infant Car Seat – It has an excellent design and very lightweight.
  • Evenflo LiteMax DLX – It is affordable but offers the necessary qualities of a good car seat.
  • UPPAbaby MESA – It is a breeze to install and check for proper installation.
  • Britax B-Safe – It has a good safety profile and slim design that fits all sizes of vehicles.
  • Clek Liing infant car seat – has super safety features, unique modern design, and eco-friendly fabrics.
  • Maxi-Cosi Mico Max 30- It is easy to clean and weighs under 9 pounds.
It is color sky blue car seat. It is very comfortable because it has a thick padding.

Is The RXT The Best Option For You?

In general, the Diono Radian 3RXT is a good car seat that has excellent features and quality. However, whether it is the right convertible car seat for you or not, still depends on what you are looking for in a car seat. If you want something budget-friendly and designed for long-term use, then you can buy the Diono Radian 3RXT, but if you have a vehicle with small space and the height of the car seat can become an issue, in the long run, you can consider other convertible car seats that offer the same slim design.

Frequently Asked Questions (FAQs)


How long is a Radian good for?

What is the difference between Diono RXT and 3RXT?

Does Radian turn into a booster?

Yes, Radian can turn into a booster. The steel-reinforced frame of the back seat has three different positions, allowing your child’s shoulder to grow with it. It has side-impact protection and energy-absorbing foam that keeps your child safe in case of impact. The seat cover is removable and it is safe to machine wash cold, so you can keep it looking new for years to come.

What is the safest brand of car seats?


What is the height limit for RXT?

Are Diono car seats worth it?

Yes, they are. Diono car seats are some of the safest on the market today. They have a five-point harness to keep your child secured in place, and they come with side impact protection and energy-absorbing foam. The seat cover is also removable and it is safe to machine wash cold it, so you can keep it looking new for years to come. The seat itself is lightweight and easy to install in your car.

Is the harness slots of RXT comfortable?
How do I convert my RXT to a booster seat?
Can you use Diono on an airplane?
What is the weight limit for the harness on RXT?

What age is Radian RXT for?

The Diono Radian RXT car seat is designed for children from birth to around 120 pounds, accommodating kids from infancy through their booster-seat years.

What is the weight limit for RXT?

The Diono Radian RXT convertible car seat has a weight limit of up to 120 pounds (54.4 kilograms) when used in the forward-facing harness mode. In the booster mode, the Diono Radian RXT weight limits are up to 120 pounds as well.

When should I switch from Diono to booster?
Is Diono Made in China?
Who is the owner of Diono?

Last Updated on April 13, 2023 by Raymond Sy Tamco

DISCLAIMER (IMPORTANT): This information (including all text, images, audio, or other formats on is not intended to be a substitute for informed professional advice, diagnosis, endorsement or treatment. You should not take any action or avoid taking action without consulting a qualified professional.   Always seek the advice of your physician or other qualified health provider with any questions about medical conditions. Do not disregard professional medical advice or delay seeking advice or treatment because of something you have read here a

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