Skip to content
  • 💸 Don't miss out on low-priced deals! 💸
  • 💸 Don't miss out on low-priced deals! 💸
Britax || Little Unicorn || Graco ShopBritax || Little Unicorn || Graco Shop
    • No products in the basket.

      Return to shop

  • Basket

    No products in the basket.

    Return to shop

  • Car Seats
    • Belt Positioning Booster Car Seats
    • Convertible Car Seats
    • Our Best Selling Travel Systems
    • Travel Blankets & Footmuffs
    • Harness Booster Car Seats
    • Car Seat Accessories
    • All-In-One Convertible Car Seats
    • Our Best Selling Infant Car Seats
    • Car Seat Stroller Frames
  • Bedding
    • Swaddle & Receiving Blankets
    • Security Blankets
  • Nursery
    • Sleep Sacks
    • Rugs
    • Changing Pads & Sheets
    • Storage & Organization
    • Mattresses
    • Lighting & Decor
    • Humidifers & Air Purifiers
  • Bath & Potty
    • Washcloths & Hooded Towels
    • Bath Toys
    • Bath Tubs
    • Skin & Hair Care
    • Bath Safety & Organization
    • First Aid
    • Diaper Pails & Refills
    • Step Stools
    • Cleaning Products
  • Safety & Child Proofing
    • Baby Monitors
Car Seats / Convertible Car Seats
Sale!
Diono Radian 3RX All-in-One Convertible Car Seat 2019 Black
Diono Radian 3RX All-in-One Convertible Car Seat 2019 Black - Image 2
Diono Radian 3RX All-in-One Convertible Car Seat 2019 Black -Britax || Little Unicorn || Graco Shop diono radian 3rx all in one convertible car seat 2019 black 24

Diono Radian 3RX All-in-One Convertible Car Seat 2019 Black

£199.99 Original price was: £199.99.£96.99Current price is: £96.99.

SKU: YWXIZ 54010 Categories: Car Seats, Convertible Car Seats Tag: Diono
  • The quality solution for all your needs.
  • The best quality products, always.
  • No-Questions-Asked Returns
  • Safe and Secure Shopping
Browse
  • Bath & Potty
    • Bath Safety & Organization
    • Bath Toys
    • Bath Tubs
    • Cleaning Products
    • Diaper Pails & Refills
    • First Aid
    • Skin & Hair Care
    • Step Stools
    • Washcloths & Hooded Towels
  • Bedding
    • Security Blankets
    • Swaddle & Receiving Blankets
  • Car Seats
    • All-In-One Convertible Car Seats
    • Belt Positioning Booster Car Seats
    • Car Seat Accessories
    • Car Seat Stroller Frames
    • Convertible Car Seats
    • Harness Booster Car Seats
    • Our Best Selling Infant Car Seats
    • Our Best Selling Travel Systems
    • Travel Blankets & Footmuffs
  • Nursery
    • Changing Pads & Sheets
    • Humidifers & Air Purifiers
    • Lighting & Decor
    • Mattresses
    • Rugs
    • Sleep Sacks
    • Storage & Organization
  • Safety & Child Proofing
    • Baby Monitors
  • Uncategorized
  • Description
  • Reviews (0)
Item # 54010

Your childÂ’s security is Diono’s top priority. We engineered our radian® 3rX with premium, innovative features like a steel alloy frame, aluminum reinforced sidewalls, energy absorbing EPS foam and a reinforced adjustable head support to keep your little one protected and comfortable.

Extended rear-facing

The radian® 3rX keeps children comfortably rear-facing from 5-45 pounds for the safest possible position. Premium, plush head and body support cushions are included for newborns and infants.

Room to grow

Accommodates forward-facing children up to 65 pounds in a 5-point harness and converts to booster mode for kids 50-120 pounds. The aluminum reinforced, adjustable head support and sidewalls provide additional side impact protection.

Worth the Weight

Our convertible car seats are made from steel for safety you can feel. The fully integrated steel frame is wrapped in thick engineered plastic to withstand severe crash forces. Deep, aluminum reinforced sidewalls provide excellent side impact protection, while energy absorbing EPS foam surrounds your child for ultimate safety. Diono car seats are definitely worth the weight.

  • Joy of the journey: From birth, keep your little one rear facing longer to 45 lbs, traveling safely. As they grow to 120 lbs (12 years approx.) our long-range lifespan protects your child facing forwards. Peace of mind for you, weÂ’ve thought of everything so you donÂ’t have to.
  • Lovingly engineered: The radian® 3 rX is fabricated using super strong automotive high strength steel, engineered into a dual spine. This unique core manages and dissipates energy and provides an unyielding structure to protect your baby. Our audible click SuperLatch system makes installation easy and quick.
  • Three’s not a crowd: For safety that fits 3 across the radian® 3 rX packs all our innovative safety features into a sleek and slim design that allows you to fit three across (in most mid-size vehicles). Now the whole family can travel, together.
  • Business Class comfort: Inspired by the best European fashions, our radian® 3 rX has bright soft fabric covers and a memory foam seat bottom. Lined with energy absorbing foam, comfort and safety go hand in hand. A tailored infant support cushion and a cup holder are included.
  • Made of Seattle: We are from Seattle, a city where being different is the norm and so is the radian® 3 rX. It folds flat, so you can travel the world and is FAA approved for use on an aircraft. You donÂ’t need to change your plans just because baby is in tow.
  • Dimensions (in): 16 L x 17 W x 28.5 H

Reviews

There are no reviews yet.

Be the first to review “Diono Radian 3RX All-in-One Convertible Car Seat 2019 Black” Cancel reply

Related products

Sale!
Britax Boulevard ClickTight Anti-Rebound Bar Convertible Car Seat - Clean Comfort
Quick View

Car Seats

Britax Boulevard ClickTight Anti-Rebound Bar Convertible Car Seat – Clean Comfort

£307.49 Original price was: £307.49.£96.99Current price is: £96.99.
Sale!
Recaro Roadster Convertible Car Seat - Redd
Quick View

Car Seats

Recaro Roadster Convertible Car Seat – Redd

£199.79 Original price was: £199.79.£95.99Current price is: £95.99.
Sale!
Diono Rainier All-In-One Convertible Car Seat - Graphite
Quick View

Car Seats

Diono Rainier All-In-One Convertible Car Seat – Graphite

£239.99 Original price was: £239.99.£95.99Current price is: £95.99.
Sale!
Diono Radian RXT Convertible + Booster Car Seat - Black Cobalt
Quick View

Car Seats

Diono Radian RXT Convertible + Booster Car Seat – Black Cobalt

£299.99 Original price was: £299.99.£97.99Current price is: £97.99.
Sale!
Cybex Cloud G Comfort Extend Reclining Infant Car Seat With Anti-Rebound Bar - Ocean Blue
Quick View

Car Seats

Cybex Cloud G Comfort Extend Reclining Infant Car Seat With Anti-Rebound Bar – Ocean Blue

£399.95 Original price was: £399.95.£99.99Current price is: £99.99.
Sale!
Maxi-Cosi Gia XP Luxe 3-Wheel Travel System - Midnight Moon
Quick View

Car Seats

Maxi-Cosi Gia XP Luxe 3-Wheel Travel System – Midnight Moon

£331.00 Original price was: £331.00.£96.99Current price is: £96.99.
Sale!
7 A.M. Enfant Car Seat Cocoon Bebe - Airy - Cameo Pink
Quick View

Car Seat Accessories

7 A.M. Enfant Car Seat Cocoon Bebe – Airy – Cameo Pink

£75.00 Original price was: £75.00.£52.50Current price is: £52.50.
Sale!
Silver Cross Dune/Reef Footmuff - Earth
Quick View

Car Seats

Silver Cross Dune/Reef Footmuff – Earth

£149.99 Original price was: £149.99.£97.99Current price is: £97.99.
Products
  • Summer Infant Touchscreen Digital Video Monitor Summer Infant Touchscreen Digital Video Monitor £219.99 Original price was: £219.99.£99.99Current price is: £99.99.
  • Nanit Travel Case Nanit Travel Case £29.99 Original price was: £29.99.£20.99Current price is: £20.99.
LEGAL
  • Privacy Policy
  • Shipping & Returns
  • FAQ
  • Returns & Exchanges
  • Term and Conditions
CUSTOMER SERVICE
  • My account
  • Delivery
  • Payment Method
  • Contact Us
  • About Us
Signup for Newsletter

Sign up for exclusive offers, original stories, events and more.

    Copyright 2026 © Britax || Little Unicorn || Graco Shop
    • Car Seats
      • Belt Positioning Booster Car Seats
      • Convertible Car Seats
      • Our Best Selling Travel Systems
      • Travel Blankets & Footmuffs
      • Harness Booster Car Seats
      • Car Seat Accessories
      • All-In-One Convertible Car Seats
      • Our Best Selling Infant Car Seats
      • Car Seat Stroller Frames
    • Bedding
      • Swaddle & Receiving Blankets
      • Security Blankets
    • Nursery
      • Sleep Sacks
      • Rugs
      • Changing Pads & Sheets
      • Storage & Organization
      • Mattresses
      • Lighting & Decor
      • Humidifers & Air Purifiers
    • Bath & Potty
      • Washcloths & Hooded Towels
      • Bath Toys
      • Bath Tubs
      • Skin & Hair Care
      • Bath Safety & Organization
      • First Aid
      • Diaper Pails & Refills
      • Step Stools
      • Cleaning Products
    • Safety & Child Proofing
      • Baby Monitors
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.