Diono Radian RXT Review – Does It Live Up To The Hype?

Diono Radian RXT Customer Rating: 172/196 – 88%Diono Radian RXT Review

Diono Radian RXT Review - Rugby

Diono Radian RXT – Rugby

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Where to Buy:


  • Rear-facing car seat from 5 to 45 lbs – follows the IIHS recommendations that your child should ride rear-facing up to 2 years
  • Forward-facing and harnessed from 20 to 80 lbs and up to 57″ tall
  • Booster seat up to 120 pounds
  • Steel alloy frame with reinforced aluminum sides
  • Safestop energy-absorbing harness system
  • Energy-absorbing EPS foam on all sides of the seat
  • Adjustable head rest – 12 height adjustments
  • Seat belt & LATCH installation (LATCH installation up to 80 pounds)
  • Removable body support cushions for infant
  • Memory foam padded seat
  • Offers 5 shoulder height adjustments and 3 buckle positions
  • Expandable sides and longer seat bottom for better leg support
  • 2 recline positions in the forward-facing position
  • Sits low enough on vehicle seat that you child can load and unload themselves
  • 1 cup holder included – you can add up to 4 total
  • No-slip rubber bottom keeps it in place
  • Folds flat for travel and storage
  • Rigorously crash tested, including the NCAP side impact testing
  • Has a 10 year life span

Diono Radian RXT Review:

Diono Radian RXT ReviewWhat I Like:

It’s SAFE!! When they say that the Diono Radian RXT exceeds the U.S. Safety Standards, they mean it. Not only has it been crash tested here in the U.S., but it’s also undergone the NCAP side impact crash testing in Europe. They call one of the tests “severe-accident” testing, which is basically a 35 mph sled test with an impact force of 47g’s, which is almost twice the crash test standard in the U.S. In every test, the test dummy remained securely retained in the Diono Radian RXT.

Diono Radian RXT Review - Rear FacingBy allowing you to keep your little one rear-facing up to 45 pounds, and forward-facing and harnessed up to 80 pounds, the Diono Radian RXT follows the NHTSA’s Car Seat Safety Recommendations. It’s actually rare to find a car seat that follows all of these recommendations. It also offers one of the tallest seats with a max height of 57″ tall. On top of that, it later transforms into a booster seat with a maximum weight limit of 120 pounds. That’s why they say that it has a 10 year life span, because it really is the only car seat you will ever need.Diono Radian RXT Review - 3 Acrossed

The size is a huge plus. Because the Diono Radian RXT measures 17 inches wide, you can easily fit three across is a mid-sized vehicle. So if you belong to a car pool, this is the car seat for you.

The Diono Radian RXT folds flat and can literally be carried around like a backpack. It’s also certified for Aircraft Travel, so if you travel a lot, this can be very convenient. The only problem is that the straps you see in the picture actually have to be purchased separately. It’s still convenient to carry though, even without the straps.

Diono Radian RXT MeasurmentsIt’s also fully customizable. In other words, there are tons of adjustments you can make that will allow you to find your child’s perfect fit. The Diono Radian RXT not only comes with removable infant body support cushions, but you also get 5 shoulder heights to choose from, 3 buckle positions, and the head rest  has 12 height adjustments. Plus, you can fold the arm rests out, expanding the seat for more room, and there’s plenty of length in the seat to accommodate your growing child.

The Diono Radian RXT also sits lower on the seat, so your toddler won’t have any trouble climbing in and out. Also, the seat itself has memory foam padding, so it’s super comfy.

The Super Latch allows you to use LATCH installation up to 80 pounds, ONLY if your vehicle allows. Most vehicles made after September 2005 offer a higher LATCH weight capacity, so you have to refer to your vehicles owners manual before using it past 40 or 45 pounds.

What I Don’t Like:

Diono Radian RXT - Steel FrameIt’s heavy. The Diono Radian RXT weighs roughly 24 pounds, which is pretty heavy. So, although it’s easy to fold and go, the weight may make it less convenient. Compared to other convertible car seats in this price range, it actually only weighs about 4 pounds more, if that. Also, the reason it’s so heavy is because it offers a steel alloy frame and reinforced aluminum sides for extra durability and safety. In my book, that’s not so bad.

The Diono Radian RXT harness has to be re-threaded. Now-a-days most convertible car seats, like the Britax Car Seats, have quick adjust harnesses that don’t require re-threading.

Customer Feedback:

Diono Radian R120 Review - Folded and CarriedAs far as reviews go, the Diono Radian RXT Convertible Car Seat did really well. On Amazon alone it had 172 out of 196 reviewers rate it 4 to 5 stars, that’s about an 88% customer satisfaction rating. Most absolutely loved it! The sturdy design and quality material were by far the most loved features. On top of that, many of the reviewers also praised it for its size and comfort. The fact that it’s easy to get in and out of was also mentioned frequently.

As for complaints, there were a couple. Number one, the Diono Radian RXT is heavy, as I mentioned above. So although it’s less awkward to carry, it can still be tough. Also, the fact that the Diono Radian Carrying Strap (pictured above) DOES NOT come with it is a major bummer. You have to purchase is separately for $8.00. A few of the reviewers even went a step further and purchased the Diono Radian Travel Bag for an extra $30.00. Unless you plan on traveling A LOT, I wouldn’t waste the money.

Diono Radian RXT Review - Angle Adjuster ImagesNumber two, the angle in rear-facing mode takes up way too much space. The front passenger seat has to pushed almost all the way forward. Now, if you’re using the Diono Radian RXT rear-facing for an infant, you will need the 45 degree angle, but if you’re using it for a toddler, it doesn’t need to recline so much.  You can simply purchase the Diono Radian Angle Adjuster for $10, and you’ll get like 4 or 5 more inches. See the picture on the above right.

Number three, adjusting the harness while rear-facing is not easy. If you can visualize it, the adjustment strap on the bottom of the seat will basically be touching the back of your vehicles seat, so trying to pull the strap down to tighten it would be difficult. I’m not sure what they were thinking on that one.

Number four, the cup holder does not install tightly. In other words, it just slides in, and your toddler can pretty much pull it out whenever he/she wants to.


All in all, even with the complaints, the Diono Radian RXT is still highly recommended. The safety and durability is what makes it so special.

Where to Buy:

Still undecided? Watch the following video demonstration, or read through some of the customer feedback on Amazon.

Video Demonstration:

 Get the Diono Radian RXT @ Amazon – BEST Price!

Comparison Reviews:

Diono Radian RXT Vs. Britax Advocate 70 CS

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