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Diono

Diono Radian 3QXT+ FirstClass SafePlus 4-in-1 Convertible Car Seat, Rear & Forward Facing, Safe Plus Engineering, 4 Stage Infant Protection, 10 Years 1 Car Seat, Slim Fit 3 Across

    • Based on 706 reviews
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Availability: In Stock.
Fulfilled by Mellona US
Arrives Jun 24 – Jun 28
Order within 17 hours and 28 minutes
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Style: QXT+ FirstClass SafePlus


Color: Black Jet


Features

  • LUXURY TRAVEL FROM BIRTH TO BOOSTER - From rear-facing to forward facing Radian 3QXT+ FirstClass SafePlus adapts as your child grows for 10 years of first-class travel from birth to booster. Suitable from 4 120 lb / 1.8 - 54 kg.
  • SafePlus 2-IN-1 ANTI-REBOUND PANEL AND ADJUSTABLE CALF SUPPORT - 1. Anti-rebound panel increases stability when rear-facing and reduces rebound rotation by up to 50%. 2. Adjustable calf support and comfort liner provides additional comfort as they transition to forward-facing.
  • SafePlus ENGINEERING - Features a unique combination of engineering features and testing to the highest safety standards to ensure the safest seat possible.
  • EXCLUSIVE PREMIUM FASHION - Designed with mesh panels and premium fabrics. Easy remove and machine washable for comfort, convenience and style All-in-One.
  • THE ORIGINAL RADIAN 3 ACROSS - Built with our famous Radian slim fit convertible design for a 3-across option only with Diono Radian combinations without compromising child or passenger comfort. Feel safe having your children secure in the backseat.

Description

Introducing the luxury 3 across All-in-One Car Seat for first class travel from birth to booster suitable from 4 - 120 lb / 1.8 - 54 kg. Diono Radian 3QXT+ FirstClass SafePlus features SafePlus engineering, exclusive premium fashion and SafePlus 2-in-1 anti-rebound panel and adjustable calf support for the very best in safety, comfort and style. The SafePlus 2-in-1 anti rebound panel and adjustable calf support features 4 positions and can be easily adjusted as your child transitions from rear-facing to forward facing. When rear-facing the anti-rebound panel increases stability and reduces rebound rotation by up to 50% for extended rear-facing travel up to 50 lb approx. 4 years old. Then as they transition to forward facing the panel can be set in multiple positions to provide convenient calf support. The comfort liner included is then positioned on top of the calf support for additional child comfort. From baby's first journey the Diono Radian 3QXT+ FirstClass SafePlus All-in-One Convertible Car Seat provides complete newborn protection, with SafePlus newborn travel high wedge, SafePlus newborn protection insert, SafePlus 2-in-1 infant positioning liner and SafePlus newborn harness pads to provide a custom fit from birth. Engineered with 8 layers of side impact protection that includes a removable SafePlus side impact management pod, constructed to channel energy around the back of the car seat and away from the child in the event of a side impact. This forms two of the 8 layers of side impact protection without compromising 3 across fit in most midsize vehicles. As they transition to forward facing, the SafePlus easy adjust 12 position headrest is contoured to improve child head containment. All these great features have been combined with SafePlus engineering, with the Radian 3QXT+ FirstClass SafePlus All-in-One Convertible Car Seat subjected to a combination of the most rigorous crash tests, front, rear, and side impacts, and rollover test to ensure the safest seat possible. Parents can also expect the travel friendly traits Diono is famous for, including convenient fold and FAA approval for use on an aircraft. So, no matter where you go you can take Diono safety with you.


Product Dimensions: ‎16 x 17 x 28.5 inches


Item model number: ‎53000


Minimum weight recommendation: ‎4 Pounds


Maximum weight recommendation: ‎120 Pounds


Minimum height recommendation: ‎18.1 Inches


Maximum height recommendation: ‎57.1 Inches


material_composition: ‎100% Polyester


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


Style: ‎QXT+ FirstClass SafePlus


Number of reclining positions: ‎12


Batteries required: ‎No


Orientation: ‎Rear Facing


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: ‎34.2 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 24 – Jun 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Sturdy, safe, & cushioned
Style: QXT Color: Purple Plum
Feels super sturdy, yet cushioned and soft for baby as it has the memory foam inserts! Absolutely love it and I now feel safe with my baby in the car! I was skeptical of purchasing after seeing some negative reviews, but I personally love ours and haven't had any issues. It was a little hard to install, especially since mine didnt really come with clear instructions or anything, but I got it figured out thanks to YouTube and basic knowledge of car seat installations. ... show more
Reviewed in the United States on September 11, 2023 by Amber Lynne
    • A Baby Tank!!!
Style: QXT Color: Red Cherry
Since I purchased this for a 15 month old, I can’t attest to using it for an infant with all the additional padding. But right out of the box it’s a pretty weighty seat. The steel frame adds some heft to it and it FEELS structurally sound. If you’ve installed a car seat before, it’s pretty easy to figure out the latch system it uses; A tether up top that secures it behind the seat and a lateral belt that you snake through the appropriate holes in the bottom/back and secure the buckles with a snap to the car’s latch system on either side. One thing I particularly like is the bottom belt latch strap has pull-release loops so you don’t have to twist your wrists in awkward positions to release the belt by pushing the buttons. The only thing, is the seat is tall so we had to remove the headrest on our back seat so it would sit flush to the seat. It took about 15 minutes to install it forward facing. Where I took off a star was the buttons for the adjustable straps to make them tighter to secure the car seat to the seat. They’re hard as hell to adjust and I had to have the hubby tighten them because I couldnt manage the leverage it takes to pull them. The button to loosen the straps just feels awkward—they’re hard to push in and seem to stick so it feels “off”. Makes you feel a little insecure about if you’ve done it right and car seat installation is one thing that you don’t want to make a mistake on. However, once you tighten the belts it doesn’t seem like they’ll loosen by themselves. Tested it by giving the seat a good tug in all directions. When we were shopping for seats, I was going to go for a lower priced seat because it wouldn’t be used as much in daddy’s car. My hubby just suggested we buy the same Maxi-Cosi Magellan seat that I have in my 2019 Expedition because he liked the magnetic top harness buckle. But, I decided to hold off. After seeing the store model of the Diono seat, I got curious about the brand and did a little research. I’m glad that I did. Daddy’s car is a 400hp Ford Explorer ST with bucket backseats and no middle seat for the added protection. I liked the ALL safety features considering that it could ONLY be installed on the driver or passenger side w/airbags. The extra plastic cube thingamajig that goes on either side depending on which side you install it on feels flimsy when you attach it. But a basic understanding of physics means that anything that can help add resistance to force from a side impact is a good thing. It adds another two layers of safety, surprising as it is, considering it’s basically a plastic box. Another plus is the harness buckle button is larger and EASY to press. My Maxi-Cosi’s buckle is small and a complete nuisance to press with nails and a wiggling tot. The cup holder seems like an after-thought though. I figured the cost of the seat is worth it—especially since it will support up to 120lbs. Plus it’s in a pretty kick-ass red that complement his dad’s car which is murdered out black with red brake calipers and red interior lighting. So...if you want something that’s stylish and seemingly filled to the brim with safety features or you have a car where a center-seat install is impossible, this seat is the way to go. Just make sure you got an extra strong set of arms to help with the belt tightening. ... show more
Reviewed in the United States on March 4, 2021 by NR$JAKI
    • Beast of a Seat
Style: QXT Color: Gray Slate
Let me preface this by saying I am a professional nanny who has taken multiple car seat classes and done hundreds of car seat installations for a variety of seats and cars. These Diono seats are tanks. They are not easy to install and require a few “tricks of the trade”. I was able to get a safe install (and had a CPST verify) while nine months pregnant in the Florida summer heat without TOO much trouble, but I would not recommend this seat if you are going to be switching it between cars or having someone unfamiliar with car seat installations transporting your child (grandparents, friends, etc). I drive a 2016 Honda Civic and my two year old son has been in a Diono Randian RXT installed in the middle seat since birth. I chose Diono because I needed a slim seat to maximize back seat usage and I wanted something that would last from newborn to booster. I was very excited about the new QXT seat for my newborn because it addressed some of the issues I had with the RXT. Side impact protection- this seat offers greater side impact protection in both the shell of the seat and the attached pod than its predecessors did. I feel completely comfortable having my newborn in the rear passenger seat. Anti-rebound bar- the older Dionos have a strap you attach to the front seat tracks which decreases rotation in a crash, but it can be difficult to set up and leaves excess strap laying everywhere. The anti-rebound bar is supposed to be the replacement, however, due to the design of the seats in my car, the bar does not completely brace against the seat. It will still reduce some rotation in a crash, but not as well. Newborn usage- my first son was two weeks late and a decent size, so the RXT worked well from birth but would not be ideal for a small baby. However, the QXT has some awesome newborn features and keeps the new baby at a perfect angle and keeps his head from flopping around. Rear facing foot attachment- the foot attachment at the bottom slips into the crack of your back seat to achieve the desired angle, but I’ve learned that some vehicles do not have a suitable crack for this to be positioned in. It is pretty much impossible for me to get a safe rear facing install in my mother’s Subaru, so I have a Chicco nextfit as an easy to install spare seat for her car. This issue hasn’t been rectified in the new QXT. Overall, I am quite pleased with the seat so far. My older RXT has held up well and my toddler is always comfortable so I expect nothing less from this new series. I love that I can have both boys in the back of my little car along with full usage of my rear driver’s side seat. This seat has also passed extensive safety tests beyond the required testing and will hold up exceptionally well in the event of a roll over crash. Be sure to research compatibility with your vehicle and give yourself plenty of time to achieve a safe install after reading the manual and looking up videos online. ... show more
Reviewed in the United States on August 5, 2020 by Angela
    • Measurements easily available would help
Style: QXT Color: Black Jet
Nothing wrong- 3 of these car seats just wouldn’t fit car rear facing
Reviewed in the United States on August 14, 2023 by Joseph Ramos

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