Diono Radian 3R Car Seat
Diono Radian 3R Car Seat
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Diono

Diono Radian 3R Car Seat

4.6 stars out of 714 reviews
(4.6)|
714 ratings
Diono Radian 3R Car SeatDiono Radian 3R All in One Convertible Car Seat Slim Fit 3 Across Pink BlossomDiono Radian 3R All in One Convertible Car Seat Slim Fit 3 Across Blue Sky3 pack Diono Radian 3R All in One Convertible Car Seat Slim Fit 3 Across Black JetDiono Radian 3R All in One Convertible Car Seat Slim Fit 3 Across Black JetDiono Radian 3R All in One Convertible Car Seat Slim Fit 3 Across Red Cherry
Actual Color:Pink Blossom-Out of stock
Black Jet, $199.99, Out of stock
$199.99/count
Blue Sky, $199.99, Out of stock
selected, Pink Blossom, $199.99, Out of stock
$199.99/count
Red Cherry, $209.99, Out of stock
$209.99/count
Pack Size:Single-Out of stock

Key item 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.
  • Exclusive Features - With limited colored seats, you will also receive a head support pillow, comfort cushion and 2 XL cup holders. These additions are included only with the following color seats - Black Storm, Blue Surge, Blue Razz Ice, Purple Wildberry and Pink Cotton Candy.
Current price is $199.99$199.99/count
Price when purchased online
Out of stock

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Customer ratings & reviews

4.6 out of 5 stars
stars714 ratings297 reviews
How item rating is calculated
  1. 5 stars81% (581)
  2. 4 stars10% (70)
  3. 3 stars3% (19)
  4. 2 stars1% (5)
  5. 1 star5% (39)

Reviews summary

Pros
  • : Designed for smaller vehicles and shared spaces.
  • : Made with a solid and secure construction.
  • : Has a slim and compact build.
  • : Offers a soft and cushioned riding experience.
  • : Offers significant savings compared to others.
Neutral
  • : Can be customized to fit, but may require effort to adjust.
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Showing 1-3 of 297 reviews

Dec 20, 2025
Kara
Item details
Color: Pink Blossom
Multipack quantity: 1
Sold and shipped byDiono
5 out of 5 stars review

Verified Purchase

BUY it!

This is so comfortable for my three year old and perfect for small backseats - we have three kids and this was a must. I think it can be used rear facing but we didn't need that - we live diono and have the slim high back belt booster for my son! They are both less than 16.5 in wide or so!

Helpful?1LYF03LIHP04182985126
Aug 25, 2025
Jess
5 out of 5 stars review

Seller Verified Purchase

Excellent Product

Excellent car seat, slender but with somehow more space for comfort of your child. Their is so much more room in the car, no bulky cup holders, no extra bits to clean.

International review
Review from walmart.ca
Helpful?1LYF03LIHP04182985126
Aug 28, 2025
Donna
Item details
Color: Black Jet
Multipack quantity: 1
Sold and shipped byDiono
5 out of 5 stars review

Verified Purchase

We just bought a new Odyssey Honda van and needed three car seats and this worked perfect we bought one to see if it would fit. It does well and we are buying two more very very pleased.

Helpful?1LYF03LIHP04182985126