Search  for anything...
Diono

Diono Radian 3R SafePlus, All-in-One Convertible Car Seat, Rear and Forward Facing, SafePlus Engineering, 10 Years 1 Car Seat, Slim Fit 3 Across, Pink Cotton Candy

  • Based on 7,943 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$259.99 Why this price?
Holiday Deal · 13% off was $299.99

Buy Now, Pay Later

As low as $43.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 90-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Unavailable
Fulfilled by Amazon
Available payment plans shown during checkout

Style: Radian 3R SafePlus Fits 3 Across


Color: Pink Cotton Candy


Features

  • 10 Years One Car Seat - from Birth to Booster (4 - 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, with SafePlus Engineering.
  • Fits 3-Across - our famous slim-fit design with SafePlus 6-layer side impact protection 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.
  • One hand easy-adjust 12-position headrest, the SafePlus completes 6 layers of enhanced, rigorously tested, side impact protection.
  • The original and only all-in-one convertible car seat that folds for travel or compact storage. FAA approved for airline use.

Brand: Diono


Installation Type: Latch


Material: Alloy Steel, Plastic, Polypropylene, Polystyrene


Color: Pink Cotton Candy


Orientation: Convertible Seat


Product Dimensions: ‎16 x 17 x 28.5 inches


Item model number: ‎50635


Minimum weight recommendation: ‎4 Pounds


Maximum weight recommendation: ‎120 Pounds


Minimum height recommendation: ‎18.1 Inches


Maximum height recommendation: ‎57.1 Inches


Material Type: ‎Alloy Steel, Plastic, Polypropylene, Polystyrene


Material Composition: ‎100% Polyester


Care instructions: ‎Covers Machine wash cold, dry flat. Shell and Components Spot clean


Number Of Items: ‎1


Style: ‎Radian 3R SafePlus Fits 3 Across


Number of reclining positions: ‎12


Batteries required: ‎No


Orientation: ‎Convertible Seat


Rear-facing minimum child weight: ‎4 Pounds


Rear-facing maximum child weight: ‎50 Pounds


Forward-facing minimum child weight: ‎22 Pounds


Forward-facing maximum child weight: ‎120 Pounds


Harness type: ‎5-Point


Item Weight: ‎29.3 pounds


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • 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. ... show more
Reviewed in the United States on August 19, 2025 by Brooke Hays
    • 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. 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
    • 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.
Reviewed in the United States on September 2, 2025 by Allen
    • Safe, affordable, & comfort all in one!!!
Style: Radian 3R SafePlus Fits 3 Across Color: Black Jet
Review Image by Darlene 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 Darlene
    • Great car seat, super heavy for travel.
Style: Radian 3R SafePlus Fits 3 Across Color: Black Jet
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!!! ... show more
Reviewed in the United States on September 7, 2025 by Patrick & Amanda O'Connell
    • 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.
Reviewed in the United States on August 22, 2025 by Esmeralda Cervantes
    • 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.
Reviewed in the United States on August 27, 2025 by Aleisha mitchell
    • Great purchase
I like this car seat a lot. I have a Honda CRV and we bought this car seat to be able to fit all three kids (two toddlers and a baby). So far, just by switching one car seat to be Diono we are able to fit everyone. The other car seat I have is Graco and my 3 and 4yo are taking turns "sitting next to the baby", so they get to experience both. I like that Diono makes it very easy for kids to strap in themselves. My only two dislikes are: no cupholder (but it saves space) and my husband said it was more complicated to put into the car than others, so I can't just remove/put in car seats on a fly if I need to lower the back row. Honestly, I'm okay with all of these because thanks to this car seat I don't need to buy a new car ... show more
Reviewed in the United States on September 20, 2025 by Anita

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...