Diono Radian 3R, All-in-One Convertible Car Seat, Rear and Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Blue Surge
Original price was: €220.€205Current price is: €205.







Price: $219.99 - $204.59
(as of Sep 23, 2025 06:15:24 UTC – Details)
From the brand

NEW ARRIVALS
BEST SELLERS
HIGH BACK BOOSTERS
BACKLESS BOOSTERS



Includes Comfort Travel Kit featuring complimentary colored head support pillow, comfort cushion and 2 XL cup holders.
10 Years One Car Seat – from Birth to Booster (5 – 120 lb) it’s all you will need. Grows with your child, ultimate protection on every road trip. 4 modes in 1 seat!
Rear Facing for Longer – lovingly engineered to keep your child rear-facing up to 50 lb.
Fits 3-Across – our famous slim-fit design with zero compromises to safety, space, or comfort.
Mechanically engineered from reinforced automotive grade high-strength steel, our unique core shell shields and protects your child.
High-quality ComfortPlus Memory Foam, always included.
The original and only all-in-one convertible car seat that folds for travel or compact storage. FAA approved for airline use.
Customers say
Customers find the car seat to be of good quality, with a solid build and stable construction, and appreciate its ability to fit three people across. They describe it as comfortable, safe, and easy to get children in and out, though some find it tricky to install. The weight receives mixed feedback, with some finding it feels lighter while others note it’s heavier than expected.
13 reviews for Diono Radian 3R, All-in-One Convertible Car Seat, Rear and Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Blue Surge
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Original price was: €220.€205Current price is: €205.
Brooke Hays –
Great car seat
This car seat is worth the money. It will grow with our son and fits any car or off road vehicle. I bought it especially to fit the backseat of our sxs. Due to how narrow it was, it required a special car seat. The stability and comfort were great for our toddler. The latch system was easy to install but strong and sturdy. Would definitely buy this again.
Esther –
Fits 2 in a row with additional infant seat in Toyota Camry!
We bought 2 of these to fit in the backseat of our 2010 Toyota Camry. 1 rear facing, middle forward facing, next to infant (Uppababy Mesa) seat. Middle forward facing was the only way it would fit.Proâs: slim, sturdy, easy for our kids to get into themselves, latch system is easy/works well. Good customer service from Diono. Our first one didnât have the rear-facing piece in the box.Cons:* Very heavy!* Tall backside. Check your car seat manual whether a car seat is allowed to touch/rest against the front seat (if rear facing). Now having moved one to the middle back seat (forward facing) on our Honda Odyssey, it sits higher and blocks the rearview a bit. Wasnât an issue in the Camry.No cupholders- fine, since that wouldnât fit anyway.Not as much padding, so perhaps less comfortable, but both our kids are fine in them.Overal conclusion: great car seat if you have a tight back seat!
Allen –
Good investment!
Great carseat. Very slim, can fit 3 carseats in a row. Easy to clean. Very heavy compared to other carseat brands I have used.
Darlene –
Safe, affordable, & comfort all in one!!!
Great car seat! Itâs sturdy & very sheik I love the easy cleaning fabric it has, it is very heavy which makes me feel like my baby is safe in it! Itâs got adjustable shoulder straps & head rest adjustments as well so it can grow with your baby. The seat part also has side adjustments so it can be narrow or wider which is a neat feature! I wonât be using it for travel but it folds up and could be easy to transport if you can carry the heavy weight of it. For the price of this car seat it was a steal!!! We spent double on a Gracie brand before and i feel this car seat is much safer, itâs also roll over tested which is great because not many car seats have that. I will say the cup holders are terrible they fall out very easily but I rather my kid be safe than have a cup holder!!! I was able to fit 2 of these car seats in with a Doona in my Ford Escape 2018 which was suppose to be impossible but the fact of how compact it is made it possible, my boys also say itâs very comfortable which is a huge bonus! Definitely a must buy car seat!!!
Patrick & Amanda O’Connell –
Great car seat, super heavy for travel.
We needed to upgrade our travel car seat and loved that this one folded up nice and compact. Love that it is FAA approved (that was a must for us) It worked really well in the rental car. Our buddy was quite comfortable. Set up was very easy. It is easy to get him in. The release for the belt is kind of tricky to find but easy to use once you got it. We got this one for the same price as the lower model on prime day and are so glad we did the safety plus just for that added comfort. The only drawback for travel is that it is HEAVY!!!
Esmeralda Cervantes –
Great size. Great seat
I love how easily you can move the seat. Its also very easy to clean. Its also perfect size, i dont have much room in the back of my car and this seat doesnt take up much room at all. It does all that while still keeping my mind at ease knowing my child is safe and comfortable.
Aleisha mitchell –
Great for 3rd rows.
I just love this car seat. It’s nice and slim. Very sturdy as well. Love that it fits 3 across.
Jim S –
I like it but it’s heavy and tricky to install
I got this for my youngest who sits in the middle with booster seats on each side for her brothers. It is narrower than the one it replaces and I really like the red color and design. It looks like a high quality car seat and feels premium. It looks great and fits great in my Range Rover Velar. Overall, I like it but there are a few things to consider:PROS1. Great looking design2. Premium feel3. Easy for my 4-year-old daughter to buckler herself4. Narrow5. Comfortable for my daughterCONS1. It’s VERY heavy. If you have to take this seat out from time to time, that might be a concern. This is for my car but my wife would never go for a seat this heavy. It seems like it weighs twice as much as the older Maxi Cosi seat it replaces. If the weight of the seat is a concern, avoid this one.2. There is nothing intuitive about installing this thing. I had to watch a YouTube video just to find the installation instructions. I’m not kidding – they are hidden in the back fabric and housing. Once you have the instructions, they are not much help. This illustrations are professionally drawn but hard to understand. Even getting the various straps out of the back plastic housings is tricky.
L. Toussaint –
Ocupas ser un Ingeniero Aeronautico o automotriz para Instalarlo. Es demasiado Dificil su instalación. Pero brinda buena protección al BB
Lyndi –
This was our first car seat purchase of this brand, and weâre so happy with it! Our child loves it even on long drives. It was super easy to install, and we felt confident choosing it after reading the strong safety ratings. Itâs also easy to clean the cover comes off easily and can be tossed in the wash, then air-dried. Itâs narrow enough to fit multiple seats across and works great rear-facing in smaller vehicles as well. We liked it so much, we bought a second one for our other vehicle. Great quality at a reasonable price highly recommend!
Laura –
Great chair struggled to get a chair with a 5 point harness for my 5year old who can’t use a normal seatbelt.
Salvador Rivera –
Buena calidad, muy seguro y sencillo de instalar
Sarah O –
We have been through a lot of car seats with our kids, through different stages and sizes, different vehicles and sometimes one that got damaged… I’m telling you this one is the best yet! Its low profile, lightweight, and easy to install. I wish we had gone with this one sooner! We like it so much that we now want to replace the other seats we have in our other vehicle!