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Diono

Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Pink Blossom

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Availability: In Stock.
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Arrives Jun 16 – Jun 18
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Style: Radian 3R Fits 3 Across


Color: Pink Blossom


Features

  • 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.

Description

The Diono Radian 3R is the original slim-fit 3 across All-in-One convertible car seat, designed to protect from baby to booster seat (5 - 120 lb). Lovingly engineered with the famous Diono steel reinforced frame and now rear facing for even longer, expect 10 years of safety from just one car seat. Designed and engineered with complete rear facing protection, so you can keep them in a safe rear facing convertible car seat for longer up to 50 lb. Built with a mechanically engineered, reinforced steel frame, made from automotive grade high strength steel, the radian is always ready to shield and protect. And when your family grows, the slim-fit design will fit 3 across in most vehicles without compromising child safety or passenger comfort. Our SuperLATCH system (UAS Compatible) makes installation easy and super secure. As travel car seat experts, Diono have naturally built in super portable and convenient features to the Radian 3R with original fold for easy transport and storage and easy remove machine washable covers. The radian is also aircraft certified (FAA approved), so you can take safety with you wherever you go.

Maximum Weight Recommendation: 120 Pounds


Minimum Height Recommendation: 18.1 Inches


Minimum Weight Recommendation: 5 Pounds


Maximum Height Recommended: 57 Inches


Rear Facing Maximum Weight: 50 Pounds


Forward Facing Maximum Weight: 120 Pounds


Rear Facing Minimum Weight: 5 Pounds


Forward Facing Minimum Weight: 26.5 Pounds


Forward Facing Car Seat Minimum Height: 29.9 Inches


Rear Facing Car Seat Maximum Height: 44.1 Inches


Installation Type: Latch


Orientation: Convertible Seat


Harness Type: 5-Point


Number of Height Positions: 1


Brand: Diono


Age Range Description: Newborn


Infant Toddler Car Seat Type: Convertible Car Seat


UPC: 677726506248


Global Trade Identification Number: 48


Manufacturer: Diono


Manufacturer Warranty Description: 12 months


Part Number: 50624


Model Number: 50624


Item Type Name: All-in-One


Included Components: radian® 3R car seat, detachable rear-facing base, foam harness pads, lap belt cushion, Safe Stop®energy absorbing harness, rear-facing top tether, Instruction manual


Unit Count: 1.0 Count


Item Dimensions D x W x H: 16.1"D x 16.9"W x 28.4"H


Item Weight: 23.37 Pounds


Material Type: Alloy Steel, Plastic, Polypropylene, Polystyrene


Color: Pink Blossom


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 16 – Jun 18

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Fits 2 in a row with additional infant seat in Toyota Camry!
Style: Radian 3R Fits 3 Across Color: Black Jet
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. Pro’s: slim, sturdy, easy for our kids to get into themselves, latch system is easy/works well. Good customer service from Diono. Our first one didn’t 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. Wasn’t an issue in the Camry. No cupholders- fine, since that wouldn’t 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! ... show more
Reviewed in the United States on February 12, 2025 by Esther
    • Great for Tight Spaces and Growing Kids
This is an excellent car seat for a growing toddler or child. We loved it so much that we purchased one for every car, including the grandparents’. My son had difficulty getting in and out of his previous car seat and struggled with buckling, but he has completely mastered it with this one. He feels more independent and proud that he can get in and out on his own. Another big plus is how space-conscious this seat is. We can comfortably fit two car seats and a third person in the middle seat of our SUV, which is perfect when traveling with extra passengers. Installation is easy, making it simple to move between different vehicles if needed. ... show more
Reviewed in the United States on January 22, 2026 by Purposeful Picks
    • 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: PROS 1. Great looking design 2. Premium feel 3. Easy for my 4-year-old daughter to buckler herself 4. Narrow 5. Comfortable for my daughter CONS 1. 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. ... show more
Reviewed in the United States on February 19, 2021 by Jim S
    • Great Option for Travel
Style: Radian 3R Fits 3 Across Color: Black Jet
We had to replace our previous booster seat. One of the main things I was looking for was FAA approval for flights since we travel and wanted something we could take on the plane for our next vacation. It feels sturdy, safe, and well made. Definitely a great option if you’re looking for a car seat that works both in the car and for air travel. ... show more
Reviewed in the United States on March 9, 2026 by Mirna Velasquez
    • Awesome car seat.
Style: Radian 3R Fits 3 Across Color: Black Jet
One of the best car seats we have owned after years of many babies rotating in and then out of car seats. Heavy, easy to install and soft seat pad. Great deal.
Reviewed in the United States on March 22, 2026 by Disappointed customer
    • A bit niche, but exactly what I needed.
So, as a former CPST, I have a love/hate relationship with the Diono Radian (and its precursor, the Sunshine Kids version). It's a fantastic narrow, low profile seat that fits in seating situations that other seats can't. It's also the most uniquely difficult car seat I have ever worked with. The Radian has multiple 'rules' and 'modes' that must be switched based on the direction the seat is facing and the weight of the child riding in it, making it easy to misuse and impractical for any situation where you have to move the seat or reconfigure it often. However, knowing this, I diligently read the manual, tested everything out, configured it properly for my son (5 years old, 36 lbs, 42"). He is using the second harness slots from the top so he has room to grow. Installing it in the car was another trick. Of the three rear seating positions in our car, two have removable headrests and one has a fixed, forward head rest (the center seat). The Radian can be securely installed in either of the outboard positions, but it can only be used RF in the center seat because the fixed forward head rest does not allow the car seat to sit flush against the vehicle seat back. This was somewhat frustrating, because due to its narrowness it is an ideal seat to use in the center position, so I was a little bummed. However, it is now installed outboard for my son and is so low profile that my daycare kiddo has no problem climbing over him to get to his booster in the pick up line at school. Overall, this can be a difficult seat to use. 10000% recommend meeting with a certified Child Passenger Safety Technician if you purchase this one, just to make sure you're using it properly given some of its unique features. But as far as quality and ability to use next to other seats, it's great. ... show more
Reviewed in the United States on November 14, 2024 by Goofy Family
    • Safe, affordable, & comfort all in one!!!
Review Image by Darlene
Great car seat! It’s 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! It’s 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 won’t 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, it’s 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 it’s very comfortable which is a huge bonus! Definitely a must buy car seat!!! ... show more
Reviewed in the United States on April 22, 2025 by Darlene

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