Diono Radian R120 Review – The Car Seat That Lasts 10 Years

Diono Radian R120 Customer Rating: 48/55 – 87%Diono Radian R120 Review - 43/50 - 86% Satisfaction

Diono Radian R120 Review

Diono Radian R120 – Rugby

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The Diono Radian R120 is designed to be used rear-facing from 5 to 45 pounds, forward-facing and harnessed from 20 to 80 pounds, and as a booster seat up to 120 pounds. So in other words, you can use it from birth up to 120 pounds. That’s a 10 year life span. This is literally the only car seat you will ever need to buy. The Radian 120 offers plenty of room to grow, with 5 shoulder positions and 3 buckle positions. It also offers expandable sides and a longer seat bottom for additional leg support and comfort.

Safety Features

The Diono Radian R120 is built heavy duty and offers a steel alloy frame. It also offers side impact protection, which includes reinforced aluminum sides with EPS (Energy Absorbing) foam panels. It also offers Diono’s Safestop energy-absorbing harness, designed to absorb energy and reduce impact to smaller, forward-facing children.  In addition, it also offers LATCH installation for children up to 80 pounds.

Comfort and ConvenienceDiono Radian R120 Review

The Diono Radian R120 comes equipped with memory foam padding, infant body support cushions, and 2 recline positions that can be used in the forward-facing position. It sits low on the vehicle seat so that your child can climb in easier, and it’s sleek design allows you to fit 3 across in a mid-sized vehicle. It also comes with one cup holder, has a rubber bottom which allows for no-slip installation, and folds flat for storage.


Diono Radian R120 Review

Diono Radian R120 – Folded

  • Rear-facing:  5 to 45 pounds
  • Forward-facing Harnessed: 20 to 80 pounds
  • Booster Seat: Up to 120 pounds
  • 5 shoulder positions
  • 3 buckle positions
  • Expandable sides and a longer seat bottom
  • Steel alloy frame
  • Reinforced aluminum side walls
  • EPS (Energy Absorbing) foam panels on all sides
  • Safestop energy-absorbing harness
  • LATCH installation up to 80 pounds
  • Memory foam padded seat
  • Infant body support cushions
  • 2 Recline positions in the forward-facing position
  • Sits low on the seat for easy access
  • One cup holder included (will accommodate up to 4 cup holders)
  • Rubber, no-slip bottom
  • Folds flat for storage
  • 10 year life span

Diono Radian R120 Review:

What I Like:

Diono Radian R120 ReviewFirst of all, let me tell you what I really like about the Diono Radian R120. This thing is built tough, alloy frame, reinforced side walls, you name it, it’s got it. Not to mention all the EPS foam surrounding the seat. I’ve seen some pretty sturdy designs before, but this car seat is in a league of its own.

You can use the Diono Radian R120 from the time your child is born, until they’re big enough to use the actual vehicle seat belts. It offers the highest weight capacity, 45 pounds, for a rear-facing convertible car seat, and you get LATCH installation all the way up to 80 pounds.

The Diono Radian R120 is easy to install, comfortable for the little one, and offers plenty of room to grow. Also, because of the sleek design, you can actually fit 3 Diono Radian R120’s across in a mid-size vehicle. I can see where this would come in handy if you were involved in a car pool, or had several children to think about.

Diono Radian R120 Review - Folded and CarriedWhat I Don’t Like

The Diono Radian R120 folds flat for storage, which is awesome, but you see the lady in the picture carrying the seat like it’s no big deal, I call BS on that. It weighs 23 pounds! That’s a lot. So if you are constantly moving your car seat from one car to the next, than this might be too much for you. Keep in mind, the Diono Radian R120 is extremely sturdy and tough. So the weight does come with a bonus.

The Diono Radian R120 offers LATCH installation up to 80 pounds. This sounds great, but the problem is that you have to find a car that offers LATCH anchors that will accommodate the 80 pound LATCH. From what I understand most cars offer LATCH anchors that are only strength tested up to 48 pounds. Apparently, the NHTSA increased this limit in September 2005, stating that all cars must offer stronger LATCH anchors. Diono claims that you can use this 80 pound LATCH on any vehicle made after September 1st, 2005, even if the vehicle manual states a 48 lb lower anchor limit. This concerns me. Personally, I just wouldn’t use the LATCH feature past the limit stated in your vehicle owners manual.  At least not until they come out with a vehicle that plainly states, in the manual, that their anchor limit is 80 pounds.

Diono Radian R120 Review - Rear-FacingAlso, the Diono Radian R120 can be used from 5 pounds all the way up to 120 pounds, but personally I don’t know that I would ever use it with an infant. For one, infant car seats are a huge convenience. If I had to unbuckle my daughter at every stop, I never would have left the house. It’s not that the Diono Radian R120 isn’t safe enough, it’s plenty safe, it’s just not convenient. Also, I think it’s the perfect car seat for kids maybe 3 years and up. It sits so low on the seat, if you strap a two year old in, they won’t be able to see anything but the back of the seats and the door handles. The low seat is perfect for older children that can climb in on their own, and sit a little bit taller.


Now, I may have said a lot of negative things above, but the fact is, I think that the Diono Radian R120 is an excellent car seat. There is no perfect car seat out there. You get the good, along with the bad. As far as customer feedback is concerned, the Diono Radian R120 did awesome! With 43 out of 50 rating it 4 to 5 stars, that’s an 86% customer satisfaction rating, one of the highest.

Get the Diono Radian R120 @ Amazon – Best Price

See what others had to say about their Diono Radian R120 below.


Customer Feedback:

Sturdy and Safe!, December 28, 2011

By bluthart,

My wife and I recently got this and have been very impressed with it. In 12 years of Law Enforcement experience, I have never seen a car seat made from such durable materials. I feel completely safe putting any of my three kids in this seat. It is heavy, but that is directly related to the high density materials it is made out of. I have seen many car accidents involving young children, and I feel that this seat will provide superior protection as possible and even saves lives.

Diono Radian R120 Review on AmazonSee Original here….

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Diono Radian Car Seats – Which one is BEST for you? And what’s the difference between the Radian RXT and the R120?

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