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Radian® 3QX

$529.99
$379.99
Radian® 3QX all in-one-convertible car seat [Black Jet]
3 stage complete newborn protection [Black Jet]
anti-rebound bar reduces rebound rotation by 50% [Black Jet]
22% increase in headrest occupancy from Radian® R Series [Black Jet]
Safe+® Engineering Features [Black Jet]
10 years one car seat from birth to booster [Black Jet]
Rear-facing from 1.8 kg [Black Jet]
Rear-facing for longer up to 22.7 kg [Black Jet]
Slim fit three across design forward facing [Black Jet]
Newborn high travel wedge [Black Jet]
6 layers side impact protection [Black Jet]
Safe+® Steel core frame [Black Jet]
Comfort+ memory foam cushion [Black Jet]
12 position easy adjust head rest [Black Jet]
rear-facing for longer up to 22.7 kg [Black Jet]
Radian® 3QX all in-one-convertible car seat [Blue Sky]
3 stage complete newborn protection [Blue Sky]
anti-rebound bar reduces rebound rotation by 50% [Blue Sky]
22% increase in headrest occupancy from Radian® R Series [Blue Sky]
Safe+® Engineering Features [Blue Sky]
10 years one car seat from birth to booster [Blue Sky]
Rear-facing from 1.8 kg [Blue Sky]
Rear-facing for longer up to 22.7 kg [Blue Sky]
Slim fit three across design forward facing [Blue Sky]
Newborn high travel wedge [Blue Sky]
6 layers side impact protection [Blue Sky]
Safe+® Steel core frame [Blue Sky]
Comfort+ memory foam cushion [Blue Sky]
12 position easy adjust head rest [Blue Sky]
rear-facing for longer up to 22.7 kg [Blue Sky]
Radian® 3QX all in-one-convertible car seat [Gray Slate]
3 stage complete newborn protection [Gray Slate]
anti-rebound bar reduces rebound rotation by 50% [Gray Slate]
22% increase in headrest occupancy from Radian® R Series [Gray Slate]
Safe+® Engineering Features [Gray Slate]
10 years one car seat from birth to booster [Gray Slate]
Rear-facing from 1.8 kg [Gray Slate]
Rear-facing for longer up to 22.7 kg [Gray Slate]
Slim fit three across design forward facing [Gray Slate]
Newborn high travel wedge [Gray Slate]
6 layers side impact protection [Gray Slate]
Safe+® Steel core frame [Gray Slate]
Comfort+ memory foam cushion [Gray Slate]
12 position easy adjust head rest [Gray Slate]
rear-facing for longer up to 22.7 kg [Gray Slate]
Radian® 3QX all in-one-convertible car seat [Purple Plum]
3 stage complete newborn protection [Purple Plum]
anti-rebound bar reduces rebound rotation by 50% [Purple Plum]
22% increase in headrest occupancy from Radian® R Series [Purple Plum]
Safe+® Engineering Features [Purple Plum]
10 years one car seat from birth to booster [Purple Plum]
Rear-facing from 1.8 kg [Purple Plum]
Rear-facing for longer up to 22.7 kg [Purple Plum]
Slim fit three across design forward facing [Purple Plum]
Newborn high travel wedge [Purple Plum]
6 layers side impact protection [Purple Plum]
Safe+® Steel core frame [Purple Plum]
Comfort+ memory foam cushion [Purple Plum]
12 position easy adjust head rest [Purple Plum]
rear-facing for longer up to 22.7 kg [Purple Plum]
Radian® 3QX all in-one-convertible car seat [Red Cherry]
3 stage complete newborn protection [Red Cherry]
anti-rebound bar reduces rebound rotation by 50% [Red Cherry]
22% increase in headrest occupancy from Radian® R Series [Red Cherry]
Safe+® Engineering Features [Red Cherry]
10 years one car seat from birth to booster [Red Cherry]
Rear-facing from 1.8 kg
Rear-facing for longer up to 22.7 kg
Slim fit three across design forward facing
Newborn high travel wedge [Red Cherry]
6 layers side impact protection [Red Cherry]
Safe+® Steel core frame [Red Cherry]
Comfort+ memory foam cushion [Red Cherry]
12 position easy adjust head rest [Red Cherry]
rear-facing for longer up to 22.7 kg [Red Cherry]
Radian® 3QX all in-one-convertible car seat [Yellow Mineral]
3 stage complete newborn protection [Yellow Mineral]
anti-rebound bar reduces rebound rotation by 50% [Yellow Mineral]
22% increase in headrest occupancy from Radian® R Series [Yellow Mineral]
Safe+® Engineering Features [Yellow Mineral]
10 years one car seat from birth to booster [Yellow Mineral]
Rear-facing from 1.8 kg [Yellow Mineral]
Rear-facing for longer up to 22.7 kg [Yellow Mineral]
Slim fit three across design forward facing [Yellow Mineral]
Newborn high travel wedge [Yellow Mineral]
6 layers side impact protection [Yellow Mineral]
Safe+® Steel core frame [Yellow Mineral]
Comfort+ memory foam cushion [Yellow Mineral]
12 position easy adjust head rest [Yellow Mineral]
rear-facing for longer up to 22.7 kg [Yellow Mineral]
Radian® 3QX all in-one-convertible car seat [Black Jet]

The ultimate 3 across All-in-One car seat from birth to booster.


$529.99
$379.99
OR

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Radian® 3QX

The ultimate 3 across All-in-One car seat from birth to booster (1.8 - 54 kg / 4 - 120 lb). Featuring 3 stages of complete rear facing protection and all new Diono Safe+® engineering to provide the next generation in car seat safety.

Features:

  • NEXT GENERATION RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT - From infant to booster seat, rear and forward facing the Radian® 3QX adapts as your child grows for 10 years of use (1.8 - 54 kg / 4 - 120 pounds).
  • 3-IN-1 REAR FACING PROTECTION - Designed for safe rear-facing travel from 1.8 - 22.7 kg / 4 - 50 pounds complete with Safe+® inserts and Safe+® steel anti-rebound bar to reduce rebound rotation by 50%
  • SAFE+® ENGINEERING - Tested Radian® all-in-one convertible car seat; featuring Safe+® steel rear-facing anti-rebound bar, steel reinforced frame, advanced side impact protection and Diono SuperLATCH attachment.
  • SLIM FIT DESIGN FOR 3 ACROSS - Features 6 layers of Safe+® side impact protection without compromising 3 across installation in most midsize vehicles.
  • ONE HAND EASY ADJUST 12 POSITION HEADREST - Contoured to improve child head containment and provides a 22% increase in occupancy range from the Radian® R series.

Product Specs

  • Minimum User Weight: 1.8 kg / 4 lb
  • Maximum User Weight: 54 kg / 120 lb
  • Number of Head Support Positions: 12
  • Minimum User Weight - Rear Facing: 1.8 kg / 4 lb
  • Maximum User Weight - Rear Facing: 22.7 kg / 50 lb
  • Maximum User Weight - Rear Facing LATCH: 15.8 kg / 35 lb
  • Minimum User Weight - Forward Facing: 10 kg / 22 lb
  • Maximum User Weight - Forward Facing: 29.5 kg / 65 lb
  • Maximum User Weight - Forward Facing LATCH: 18 kg / 40 lb
  • Minimum User Weight - Booster: 18 kg / 40 lb
  • Maximum User Weight - Booster: 54 kg / 120 lb
  • Maximum User Height: 145 cm / 57.1 in
  • Product Height: 72.4 cm / 28.5 in
  • Product Width: 43.2 cm / 17 in
  • Product Depth: 40.6 cm / 16 in
  • Seat Weight: 14.2 kg / 31.3 lb

Care & Maintenance

Covers: Machine wash cold, line dry. Shell and Components: Spot clean

Warranty Information

12 months warranty

Diono Radian® 3QX All-in-One Car Convertible Seat

Diono 2020 Radian 3QX Rear-Facing Installation

Diono 2020 Radian 3QX Forward-Facing Installation

Diono 2020 Radian 3QX Booster Mode Installation

The Diono Difference

The Radian® Q series exclusively features Diono Safe+® engineering, our unique combination of car seat engineering and rigorous testing to provide the best possible protection for your child.
Every Radian® All-in-One Convertible Car Seat is designed to adapt as your child grows to offer a custom fit from birth to booster (up to 54 kg)
Built with our famous Radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.
Engineered to keep your child rear-facing for longer up to 22.7 kg.

Plays well with

Angle Adjuster Car Seat Leveler, Car Seat Wedge Cushion, Provides More Legroom For Rear-Facing Car Seats [Black]

Angle Adjuster

$29.99

Elevates All-in-One convertible car seats to a more upright position

Customers Also loved

Radian® 3QXT next generation of all in-one-convertible car seat [Red Cherry]

Radian® 3QXT

$579.99

The ultimate 3 across All-in-One car seat from birth to booster

Radian® 3R all in one convertible car seat [Gray Slate]

Radian® 3R

$329.99

The original 3 across All-in-One convertible car seat

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