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Diono Radian RXT Convertible + Booster Car Seat - Essex

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Include the Diono Radian RXT Convertible + Booster Car Seat - Essex

Item # 50004-DIONO


Rear-facing Capacity: 5-45 lbs
Forward-facing Capacity: 20-120 lbs
Seat Weight: 26.15 lbs
Seat Dimensions:28.5 H x 17 W x 16 D

What's Included: Cup holder


Steel Frame

Full steel frame and aluminum reinforced sides for unmatched safety.

Fit 3 Across

Comfortably fits 3 across in most mid-size vehicles.

Fold & Go

Folds flat for storage and travel - you can even take it on the go with handy carry straps (sold separately).

FAA Certified

Travel-friendly and FAA certified for aircraft use!

Your child’s security is Diono's top priority. The Radian rXT was engineered 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.

The radian® rXT 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.

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.

Diono 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.

  • Premium, plush interlock knit fabric (available in Black Cobalt, Black Mist, Black Plum, Black Scarlet and Essex colors)
  • Full steel frame for unmatched safety
  • Comfortably seats rear-facing children from 5-45 pounds
  • Seats forward-facing children from 20-65 pounds in a 5-point harness
  • Converts to a booster for children from 50 pounds up to 120 pounds, and up to 57? tall – proper fit in booster mode
  • Unique SuperLATCH™ system makes installation easy
  • Fits 3-across in most mid-size vehicles while providing spacious interior for child
  • Folds flat for travel and is FAA certified
  • Infant body support cushions and memory foam add comfort
  • Aluminum reinforced sides with energy absorbing EPS foam additional side impact protection
  • Safe Stop® energy absorbing harness
  • 12-position adjustable headrest
  • 5 shoulder and 3 buckle positions adjust for a comfortable ride.
  • Rear-facing tether capability
  • Expandable sides and long seat bottom offer proper leg support
  • Low-sitting profile makes it easy for your child to board
  • Angled cup holder keeps drinks upright and within easy reach
  • Cover is machine washable
  • Rubber bottom grips for no-slip installation
  • 10 year life from the date of purchase

776 Reviews
75% (584)
19% (150)
2% (19)
2% (16)
1% (7)
93% Recommend this product (720 of 776 responses)
By Chris
Waukesha, WI
June 8, 2014
Great seat if you need to fit three car seats in one row
I have a four year old and twin 1 year olds. I originally bought two rear facing only seats for my twins (had to do some research to find three that would all fit in my car). Now that I moved my twins to forward facing I had to purchase another two seats for them that would fit along with the booster I have for my four year old. These seats are narrow enough to easily fit three across either forward facing OR rear facing. I have one fairy wide booster seat + two Radians and while its a bit tight, it easily works. I've also moved all three to different cars and it fit all of them without issues. If I had three Radians it would be even be easier (since my booster is a few inches wider than these seats). My kids like the seats, seem comfortable to them, and are easy to buckle them in with. I didn't try rear facing with the kids in them, but I put them in the car just to see and space was ok that was too. I currently have 10 car seats including my two Radians, and these are one of the easiest ones to install of the bunch. If you are looking to fit three kids in a standard car (I have a Tucson and an Altima), I would recommend going with these. My only regret is that I didnt purchase these originally instead of buying separate infant carriers.
Prosfits three across in a standard size vehicle (Camry, Fusion, Altima, etc). Rear facing OR front facing. Easy to install Easy to buckle children in Seems comfortable
Consnothing I've noticed
By sean
Azusa, CA
June 19, 2018
Very solid construction, give me peace of mind
But like a tank! And it looks great. Also nice that it folds making it a good airplane/ travel seat.
By Rachel
Atlanta, GA
June 17, 2018
Great, trustworthy seat
I love the seat so much, I bought another for our 2nd child. I trust Diono the the safety of my family!
ProsSolid steel, once installed properly you know it?s not going anywhere.
ConsHeavy. Not the seat you want to transfer from car to car.
By Tri
June 10, 2018
Great Car Seat
I already owned an older model of the RXT (about 3 years older) and love it. So, when I needed another seat for the younger brother, I decided to purchase the RXT again. This time I bought two, one for a Mercedes Benz C350 and one for a Toyota Sienna. The seats were easy to install in both cars. In the C350, with two seats (one in the rear center and one in the rear passenger side), I still have room for someone to sit in the rear driver seat. In the Sienna we also have a Britax car seat. In comparison, the Diono straps are much better. The Britax straps constantly get twisted. This is not a problem with the Diono seats. The Britax also takes up much more space in the car as well.
By EHForever
San Francisco, CA
June 7, 2018
Solid and safe car seat
We’ve owned this car seat for a few weeks now, and so far I really like it. The steel frame construction and extended rear facing were the main selling points for me. Installation took some time, but I have peace of mind knowing the car seat is securely attached to my car. I especially like the tether that attaches from the back of the car seat to the front seat track which is bolted to the frame of my car. I purchased the optional angle adjuster which added several inches of space between the car seat and the back of the front seat in my tiny car, and also made the car seat conform better to the backseat of my car, which makes it feel even more stable and secure. When I try to move the car seat side to side with my hand, it barely budges at all. In addition to all the great safety features, the car seat’s low profile makes getting my son in and out of the car seat much easier than with other car seats. He also seems to enjoy the freedom of movement he has in this seat compared to others.
By Lee
Turlock, California
June 4, 2018
Awesome Car Sear
I purchased this car seat for my granddaughter who just turned 4 years old. This car seat is built very good & my daughter loves it as well.
By Mama of 2
Cincinnati, OH
May 23, 2018
Great Slim Convertible Seat
I love this car seat for both of my kids. I originally bought one for my daughter who is my older child, and it was so easy to get her in and out that I decided to buy a second for my son when he was ready for a convertible seat. We have several other convertible seats between my husband and the grandparents (graco 4ever, britax marathon, and evenflo convertible seat) but this is by far everyones favorite. It is rather heavy, but if you’re not moving it from one car to another on a regular basis it’s not an issue and the steel frame makes it very safe. Rear facing in my Ford Escape does limit front seat room quite a bit, but forward facing doesn’t take up more room than the regular seat. I can fit an extra passenger in the backseat even with two car seats. Goal accomplished! I wish you didn’t have to take the car seat out to rethread the harness but it’s not that big of a deal.
ProsSlim Comfortable Easy to buckle child
By Kat
Kennewick, Washington
May 23, 2018
So worth it to give more space in the car!
I have three of these and can’t use any other seats but these for our style of car for three across. So safe and comfy!
By Sarah
North Idaho
May 21, 2018
Very compact and easy to use
We bought this seat for my 2 1/2 yo son to replace a Britax Boulevard, which shifted over to my 10 month old daughter. We were hoping it would fit better in our small car, a 2003 Subaru Forester. It does, wonderfully. Besides being narrow (which is less of a concern for us with only 2 kids) it is small in depth as well and doesn't stick out beyond the seat allowing for my husband to fit in the car again because the front seat doesn't have to be pushed all the way forward. We bought the Britax for easy install and car switch, but it really isn't that much more complicated with the Diono. The straps are easy to fit to the kid and easy to tighten appropriately. Color is beautiful. My son loves the cup holder. He also seems really comfortable.
By K
Chicago, IL
May 16, 2018
Love this seat!
Not only do we love the steel frame, but these are also the only car seats that fit in the captain chairs of our Toyota Sienna. They are narrow enough to fit, but still provide enough space for our boys to sit comfortably. We have been using the Diono Radian RXT for over 4 years and couldn't be happier. We had to order another seat and couldn't beat the price from Albee Baby plus free shipping!
ProsSteel frame Narrow base Comfortable
By Bridget
Huntsville, Texas
May 9, 2018
Love this seat
This car seat is a great buy! It is very low profile and my son really likes sitting in it! The price was quite a bit less than most other places and we got free shipping and it came fast! So glad AlbeeBaby is around!
By Melissa
Sparta, Wi
April 28, 2018
Love this seat
This is the 3rd one of these seats we have bought. Both boys are comfortable. I love how they fit in the back of my husband’s little car. They are very heavy.
ProsSlimmer than other carseats
By Lindsay P
Erial, NJ
April 27, 2018
Great Seat Came Quick
I bought this seat for my daughter for our Honda CRV. We got this one specifically because it has a cash back offer at the time of purchase which saved more $$ over the other colors. But I kind of love it. I highly recommend the angle adjuster. It makes the seat angle better so you gain some leg room as a passenger. Even in a larger car like the Honda CRV, it was needed!!!
By Regan
April 26, 2018
Great seat
Great car seat, plan to use for extended rear facing. Love that it has a tether for rear facing to the floor as well. Easy to install and the angle adjuster helps give more leg room for front seat. Seems comfy and kid likes being able to see out the window.
ProsExtended rear-facing Rear-facing tether Comfy Fits three across
ConsAngle adjuster needed for tall drivers
By Ken
WASHINGTON, District of Columbia
April 17, 2018
Great seat
Very narrow, feels sturdy
ConsHard to manage during installation
Best UsesNarrow cars
By InnZ
Vancouver wa
April 13, 2018
Great carseat!
I am really pleased with how narrow this carseat is yet still very comfy for my 25 months old (tall) toddler girl! We were able to fit 3 different car seat brands across in our 4Runner. Goal met!!
ProsVery compact yet safe and comfy
April 13, 2018
Nice car seat
Nice car seat
By Suzanne
Springfield, IL
April 11, 2018
Love this seat
Great carseat! Easy to install as long as you read the manual well. Very heavy and safe.
By ryan b.
mid atlantic
April 3, 2018
Great seat
Pros: Obviously the slimness and ability to fold. feels very solid without too much of a weight penalty over competition. Buckles easily and the shoulder/chest pads help keep the chest buckle in place so they don't have to be continually found and readjusted (pretty annoying on the wife's chico). The low seat makes getting kids in and out nice and easy. The protector/pad for the main buckle is a nice feature. Neutral: unless your car is huge or you don't care about the passenger seat you are going to need the incline adjustment pad for rear facing. Padding feels thin in areas. Since the seat is so tall the wings will inhibit your view when rear facing. Its nice that the seat gives a place to store all the buckles etc but they rattle without some modificctions. Cons: The strap system seems much more complex and cumbersome than other seats I've used. Additionally the weight limits when using the LATCH anchors are oddly low. Instructions could be more orderly and don't have a way to be stored with the seat.
By Christina
Nacogdoches, TX
April 3, 2018
Great purchase
We have had this seat for about a week now and my 3.5 year old loves that he can climb in the seat by himself and can see out the window better then his convertible carseat. I have a back condition so it is nice that I don't have to lift him any more. The straps are easy to buckle and pull snug. Fairly easy to assemble with the instructions. The seat is heavy but to be expected with a steel frame, which is the reason I purchase it. If planning to use for frequent flying and as a carry on, it could be heavy but for sporadic travel it would be fine. Overall has been great so far.
ProsSafety features Easy to install Child can climb in themselves Harness is easy to snap and pull snug
By Jen
Boise ID
March 25, 2018
I was searching everywhere to find the right seats to fit in our suv it has space but it’s more compact so fitting 3 was really difficult and it was even more difficult to get us into a bigger vehicle so I got pretty sad because I was having hopes of expanding our family when my husband is back from deployment . But I knew there were more seats out there for compact car and suvs .. looked online , saw these seats. Found a friend who had two of them asked her to try them in my car with one of my child’s seats at the time. And we fit them fine, safe and comfortably. So I decided to just buy 3! And they fit amazing and the seats are made very heavy and well. Very safe! I am glad I got these new seats. I’ll be buying again in the future possibly! Thanks!
By benny
bellevue, Washington
March 22, 2018
solid car seat
I like how this car seat is built. Compact and strong. I can fit 3 in a row on my 2010 prius. The cup holder is super sturdy, my son has been hanging on to it many times to help him to get in the car.
Pros- compact! can fit 3 in a row on a 2010 prius - sturdy cup holder
Cons- installation is not friendly as others said
By Kayla
Syracuse, NY
March 22, 2018
Diono Radian RXT
This is my second Diono Radian RXT purchase. My two year old is rear facing in it comfortably. It had high safety ratings and fits rear facing in the back seat of my compact car. I have purchased this one as a second car seat for my husbands vehicle until our baby is out of the infant seat, when it will be come his main car seat.
By Kristin
Grand Rapids, Michigan
March 16, 2018
Was as described and arrived quickly. We have had diono Radian RXTcarseats for years now. Needed to replace one from an accident. Love the new updates to them.
ProsHard for a child to unclip themselves Easy to clean Fit three in most vehicle Soft Comfortable Both 1 year old and 6 year old love the carseat
By Penelope
Los Angeles, California
March 16, 2018
LOVE this carseat!!
I'm in love with this carseat. I bought a second one for grandparents car. Its slim enough for their small car but it is extremely safe.
ProsSteel frame for security Slim enough to fit 3 across
ConsHeavier than most car seats
By Katie
March 11, 2018
Not as great as I thought it would be.
It was much more complicated to install than I thought. I was previously using a Chicco NextFit seat and loved it! I have used Chicco for every seat for all 3 of my kids. Primary reason for choosing this seat is the option to only have one seat that transitions with my child until just a booster seat is needed. I was also drawn to the narrow width of the seat to try and fit 3 across in my Explorer. I feel like I have a really hard time tightening the harness straps tight enough on my 2 year old. Even when removing the padding around the chest clip, I feel like I am still not getting just the right tightness and it takes me multiple times of trying to tighten and adjusting to feel somewhat ok with it. Overall I like the look of the seat and all of the options for transitioning with the seat, but I truthfully don't think I would purchase again and would likely purchase a Chicco MyFit instead.
ProsSuper narrow frame. Ability to transition for all stages of belting needs. Feels like a sturdy seat.
ConsComplicated to install. Heavy. Protective, adjustable head wings are a little tricky to adjust. Harness straps are tough to tighten to preferred position.
By Bethany
Lynchburg, VA
March 4, 2018
Love this car seat! Super easy to install when you put your weight into it! Super secure and parent friendly. Zero complaints.
By Nancy
March 3, 2018
Love the ease of using this carseat
I purchased one for my daughter and then had to use it for my grandchild. With bad hands I was still able to easily put her in and take her out. I liked it so much I purchased another one. This way I had my own instead of using another brand that I had a hard time using.
ProsJust the perfect size. Ease of use.
ConsHaven't found any yet!
By Lauren
March 2, 2018
Great car seat, great price
We already own two dionos and this one is the same great seat, but with a slimmer and improved chest clip. It also came with a wedge piece to solve the forward facing 65+ pound issue. We can fit three of these in the third row of our Chevy traverse, with the center seat backward and the outside two front facing.
By Kristy
Olympia, Wa
March 1, 2018
I wish I would have bought this first. I would saved money in the long run. Fits nicely in my van. It was great on vacation fit nice in air plane seat. My kiddos love their car seats
ProsFits 3 in a row
By Lalaland
February 23, 2018
As described
Fast shipping. Easy customer service. Well packaged. Fits in my Highlander SUV perfectly. Thanks again Albee!
By Natalia
Whitestone, NY
February 23, 2018
This is my third one for my third child and still can't say enough good things! Not only is the frame indestructible, the color is beautiful and EASY TO WASH AND REASSEMBLE!
By Nathalie
Houston, tx
February 22, 2018
Best car seat ever
This seat fits perfectly in a Toyota Camry even without the angle adjuster pad. I love that it's FAA approved and can't wait to use it for that. It is a bit heavy but is still comparable to other car seat weights. I love that it can fold and be as a backpack. My child fits comfortably and is happy sitting in a seat finally. Definitely buy for traveling and limited space use.
ProsNarrow Great discounted price FAA approved Manual was very specific, helpful, and easy to read
ConsDidn't want the red color but it was the cheapest Seat cup was difficult to put it
By Erin
February 18, 2018
Love this seat. Size is perfect and quality is great. Feels very secure.
By Michelle
Tampa FL
February 18, 2018
The one seat you’ll ever need!
Sturdy, durable and all purpose! Comes with extra baby and booster cushions for when my babies are little. I love that this is the only car seat I’ll ever need! Love the side head supports too! We own 7 of these in total (among grandparents and both parents).
ConsWe found it difficult to install backward facing but once installed, it is absolutely wonderful!
By Annie
Omaha Nebraska
February 17, 2018
Diono Radian
Arrived earlier than expected very pleased with the service The Diono is exactly like the one we already have which we find excellent so therefore wanted a second for the second growing baby. Would highly recommend the seat and the Albee company
By Lisa
San Diego
February 15, 2018
My 4th Diono purchase!
This is my 4th Diono RXT purchase. These are well made, heavy seats. I have purchased 4 total for my own car for two kiddos and grandparents cars. While more expensive than some other car seats they are worth every penny. I prefer the RXT due to the upper wings on the top. This lets them rest their heads when napping while running errands. My son was able to climb up into the seat early on due to the low sides that can be adjusted up or down. The two seats easily fit into the seats of my Acura tsx and now my Toyota highlander.
ProsHighest safety ratings Hold up well over time Comfortable Variety of colors
ConsHeavy for traveling
By Annie
San Francisco, CA
February 8, 2018
Would recommend!
We're one week into using the Diono Radian RXT and so far we love it. The installation was straightforward and the angle adjuster allowed us more room front to back. We really love the low profile sides for putting our baby into the seat easily and the narrow width for our small car and retaining use of our backseat. The seat itself is comfy with memory foam under the baby and padding along the straps. The ratchet takes some patience to tighten the harness, especially rearfacing, but we love how snug we can get it and know our baby is secure. All this and the excellent safety ratings made this a great choice for us!
By Alexis
Mooresville, North Carolina
February 5, 2018
Love it!
With a more compact SUV, I wanted to maximize space while keeping my little guy as safe as possible. This seat does that. I have struggled with using the foam enhancer but at the moment, it isn't an issue. We will be getting another one for my husband's car now that we know we like it so much.
By Madsnapper
Debary, FL
February 4, 2018
This car seat is rugged and versatile. This is the third one I have purchased. One for each car. Plus one for the baby sitters car. With it's steel frame it is narrower than the all plastic seats i have seen. It actually fits in the airplane seats that I have put it in. Replaceable seat covers and many other parts allow you to change a dirty cover and be back in use in a few minutes then wash the dirty cover when you have time to. The 10 year working life is fantastic.
ProsStrong, suitable for airplane use, long working life, it's not all plastic.
Consheavier than most, but worth the weight. The cup holder detach to easy. My daughter is a thrower.
Best UsesFrom the time they outgrow the infant carrier. Until they are able to use the car's seat with out any added seat or booster. works for flying as well. keeps the child in the seat seated not climbing out of the lap belt and all over the plane seats.
By S
Bountiful , Utah
February 4, 2018
Narrow, well built, high quality!
Love this car seat. Narrow to fit in our small car with an infant seat next to it. Built to last!
By Gen
St. Cloud, minnesota
January 28, 2018
Great car seat
Solid car seat, great quality. It fits in my Mazda 3.
By Juan B
Marina del Rey
January 26, 2018
Great Car seat
I recommend this seat and Albee Baby.
Best UsesAllows you to fit 3 car seats in 1 row.
By Keela
January 21, 2018
Great seat
Great seat, great site to order! Wish someone told me how far it reclines back in backward facing mode bc definitely need the $10 wedge sold separately if anyone plans on using the seat it's behind & I'm a 5'4" woman in a suburban. Also need to order a second cup holder-only comes with one. For as pricy as these seats are wish at least had 2. Otherwise completely happy.
ConsRecline position in rear facing One cup holder
By De Anna
Sacramento, CA
January 21, 2018
First and foremost let me start by saying Albee Baby is a godsend! I have 3 boys and have been eyeing Diono since before my second was born 2 years ago, and I am now FINALLY a proud owner of two! Both were purchased just a week ago and I couldn’t be more happier, and am still just as ecstatic. As my 2 year old sits face-forward comfortably and securely, my almost 6 month old lounges rear-facing ultra comfortably and securely just the same. Months of thorough research and I never came across a price for a BRAND NEW Diono Radian RXT as I found at Albee Baby. As they say, “Good things come to those who waitâ€. :)
Pros- beautiful design and vibrant color - very soft high quality fabric - memory foam cushioned - very well padded chest straps like no other - cup holder that can be placed in 4 different places - easy latch - high seat back - slim seating yet very roomy with seat width extension option - though quite heavy than most the weight only confirms its provided safety
Best UsesTruly for anyone with more than one child.
By Mark
Hartford, CT
January 15, 2018
Best Price Online
Best price I've been able to find for these car seats. I have a 4 year old and 1 year old twins. Rather than getting a bigger car, I am able to fit these car seats 3 across in both my Altima and Sante Fe.
By deedees
Pasco, WA
January 10, 2018
love the sleek design
I have a maxi cosi pria85 and although I love it, it's too bulky to fit more carseats so for my older daughter we got this one and we were impressed. It was recommend to us by a friend who has 2 year old twins and a 3 year old son so even though I'm usually worried about ordering something I couldn't physically see or touch, I'm glad I took the chance!
ProsSpace Saving, cool design, comes with a cup holder
Consvery heavy!
Best Useswhen you have several young kiddos close in age and need more than 2 carseats in the backseat.
By Sabrina
Colville, Washington
January 9, 2018
Very Satisfied
I ordered two of these seats with the intention of ordering another probably in the next six months. Baby number three is almost ready to arrive and these seats will fit three across in my Jeep Cherokee. I love the seat for my three year old as I have set it forward facing. However, I have another little one that's not yet two and is still rear facing. I find it really difficult to get the harness adjusted tight enough on her. The strap release is awesome when loosening the children, but this same positive makes it difficult to pull the harness tight when rear facing.
Tallahassee, FL
January 6, 2018
So glad I went with this one
I did lots of research in preparation for my first convertible carseat purchase and I am so glad I went with the Diono! It is heavy but once you get used to it, it isn't bad at all.
Tallahassee, FL
January 6, 2018
Best Car Seat
I looooooove this car seat and was so happy to buy another one for my second child. Very well worth every penny.

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