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The Diono Radian 3R is a premium 3-in-1 convertible car seat designed for newborns through booster age (5-120 lbs). Featuring a reinforced steel frame, extended rear-facing capability up to 50 lbs, and a slim design that fits 3 across in most vehicles, it offers 10 years of reliable protection. FAA approved for air travel and equipped with ComfortPlus memory foam, it combines safety, comfort, and convenience for the modern family.




| ASIN | B083F5P7VP |
| Age Range Description | Newborn |
| Best Sellers Rank | #1,518 in Baby ( See Top 100 in Baby ) #9 in Convertible Child Safety Car Seats |
| Brand | Diono |
| Color | Black Jet |
| Customer Reviews | 4.7 4.7 out of 5 stars (7,876) |
| Forward Facing Car Seat Minimum Height | 29.9 inches |
| Forward Facing Maximum Weight | 120 pounds |
| Forward Facing Minimum Weight | 26.5 pounds |
| Global Trade Identification Number | 00677726506200 |
| Harness Type | 5-Point |
| Included Components | radian® 3R car seat, detachable rear-facing base, foam harness pads, lap belt cushion, rear-facing top tether, Instruction manual |
| Infant Toddler Car Seat Type | Convertible Car Seat |
| Installation Type | Latch |
| Item Dimensions D x W x H | 16.1"D x 16.9"W x 28.4"H |
| Item Type Name | All-in-One |
| Item Weight | 23 pounds |
| Manufacturer | Diono |
| Manufacturer Warranty Description | 12 months |
| Material Type | Alloy Steel, Plastic, Polypropylene, Polystyrene |
| Maximum Height Recommended | 57 inches |
| Maximum Weight Recommendation | 120 pounds |
| Minimum Height Recommendation | 18.1 inches |
| Minimum Weight Recommendation | 5 pounds |
| Model Number | 50620 |
| Number of Height Positions | 1 |
| Orientation | Convertible Seat |
| Part Number | 50620 |
| Rear Facing Car Seat Maximum Height | 44.1 inches |
| Rear Facing Maximum Weight | 50 pounds |
| Rear Facing Minimum Weight | 5 pounds |
| UPC | 677726506200 |
| Unit Count | 1 Count |
User
Best car seat out there!
Our favorite car seat / booster or all time! Worth the price!! Fits 3 across, easy for toddler to buckle themselves and goes in the third row of the car! Also it’s good for 10 years which is much longer than most car seats!
User
Fits 2 in a row with additional infant seat in Toyota Camry!
We bought 2 of these to fit in the backseat of our 2010 Toyota Camry. 1 rear facing, middle forward facing, next to infant (Uppababy Mesa) seat. Middle forward facing was the only way it would fit.Pro’s: slim, sturdy, easy for our kids to get into themselves, latch system is easy/works well. Good customer service from Diono. Our first one didn’t have the rear-facing piece in the box.Cons:* Very heavy!* Tall backside. Check your car seat manual whether a car seat is allowed to touch/rest against the front seat (if rear facing). Now having moved one to the middle back seat (forward facing) on our Honda Odyssey, it sits higher and blocks the rearview a bit. Wasn’t an issue in the Camry.No cupholders- fine, since that wouldn’t fit anyway.Not as much padding, so perhaps less comfortable, but both our kids are fine in them.Overal conclusion: great car seat if you have a tight back seat!
User
Easy to Install and Uninstall
They truly do fit 3 across, even in my compact SUV. The quality is nice and easy to assemble and clean!One of the easiest car seats to install and uninstall in a car.Personal I would not recommend for Forward facing though, even though they say they can, it does not seem secure enough for me!
User
Bought 2 & would buy more
Super sleek, safe & sturdy. It’s so easy to strap the kids in & adjust knowing they’re safe & secure. I love the strap pads that would 💯 prevent any necks getting slit in an accident. It’s easy to take in & out but it’s definitely not recommended as a grab & go car seat. It’s solid.. the steele frame makes it pretty heavy so as long as you aren’t puny, you’ll be fine. You might break a sweat, transporting it and putting it in another car, but would you rather than be safe or in a cheap inexpensive Walmart car seat with straps that constantly twist. Super comfortable, apparently. My son usually falls asleep before we even get out of town. I bought one for my mom’s car and my husbands mom’s car. We have a different Dion model in ours but this one is easier to use honestly..
User
Heavy duty car seat
I like it. Heavy. Feels high quality. It can be a little bit difficult to install but not undoable if you read the instructions. It’s slick and looks great. Safety ratings are reason for purchase.Drive Volvo xc70 200&
User
Hard to clean
Pros: Slim design, solid build, and very comfortable due to foam cushioning of the seat. It easily fits in the back center of a Ford Focus along with an infant seat on one side + room for an adult on the other side.Cons: Hard to remove the cover; they claim that the car seat cover is "easily removable" and "washable" - either of which is true. This is super annoying especially since kids are dirty, they throw up, or have potty accidents. We updated to this car seat from a Graco Slim Fit. On the Graco, I can take out the seat cover within 1 minute single handed. On the Diono forward facing, I had to loosen the seat installation, access the back to unlatch the two shoulder belts from the bottom hook, pull these belts through the seat back, then I can remove the cover completely. Why couldn't Diono just put 2 slits on the cover for the seat belts to slide out? It would make cover removal SO much easier. The seat cover is not really washable: even on the delicate cycle, the backing of the cover got completely destroyed in the wash. I did not put it in the dryer! A replacement cover is $99. The foam is not washable either; I tried washing it and it split. :'( WTH?Overall, I still like the car seat, but beware of the issues with the seat cover removal and washing. Diono sells a waterproof seat protector for $16.99, I guess I'll buy that. But I'm not happy to have to spend the extra money for an accessory to a seat cover that should be easily washable in the first place.
User
3 across in smaller car
There were 2 features I purchased this for. The narrow construction that allows for 3 carseats side by side. It took 2 of these and another narrow seat to fit forward facing in a Saturn ion. Second is the all in one. Won't need to buy another seat or booster.If used rear facing, these take up more room than other seats. They are tall, plus the angle make it difficult to fit in a small car with a tall person in the front seat. Would not work for an infant in my Ion.I also like that is very sturdy. There's lots of metal in the construction. Feels safer. The trade-off is that it's heavy. But that's not a concern unless moving it from car to car all the time.Have only used as a forward facing carseat so far. But I like all the options that it can be used for. There are less expensive seats, but having to buy a rear facing, then forward, then a booster ads up. May save money in the long run if starting with just this one all-in-one.On the other hand, the dedicated infant car seats that can detach are super handy for going into stores without unbuckling your baby. Something to consider.Overall, highly recommend this seat.
User
Great for Tight Spaces and Growing Kids
This is an excellent car seat for a growing toddler or child. We loved it so much that we purchased one for every car, including the grandparents’. My son had difficulty getting in and out of his previous car seat and struggled with buckling, but he has completely mastered it with this one. He feels more independent and proud that he can get in and out on his own.Another big plus is how space-conscious this seat is. We can comfortably fit two car seats and a third person in the middle seat of our SUV, which is perfect when traveling with extra passengers. Installation is easy, making it simple to move between different vehicles if needed.
User
Excelente tamaño y seguridad
La mejor silla si tienes una familia de 3 niños caben perfectamente 3 sillas en la parte trasera del coche
User
Buen asiento
Ocupas ser un Ingeniero Aeronautico o automotriz para Instalarlo. Es demasiado Dificil su instalación. Pero brinda buena protección al BB
User
5 point harness for older children
Great chair struggled to get a chair with a 5 point harness for my 5year old who can't use a normal seatbelt.
User
Our favourite car seat
We love this chair; and have had a variety of other brand car seats over the years. 1) it's more narrow and streamlined than anything else we've used - which is why we bought it (3 kids in a 5 year window and a 3 across car seat configuration). 2) The straps adjust easily; tighten and loosen smoothly! (other seats we've used feel like you're constantly tugging and readjusting and just fighting with the straps. I've never fought with these). 3) maintenance is simple, cover goes on and off easily and you can throw it in the wash. It has other cool features we haven't used much, but I like that it can basically fold up if you ever travel with it."Cons". a) The seat is heavy, so if you're moving it from one car to another often that would be a pain. Personally I like how solid it feels, and we don't move it much so it's not an issue. b) we put a small rip in the cover fabric the month we got it, but were able to sow it back up and no issues since (one of the kids climbed over the back of the seat and their shoe somehow snagged the cover). c) REAR FACING the seat leans back really far (further than any other seat we've used) - you have to move the front seat ahead of it quite a ways up for it to fit properly. They do sell an angle adjuster that can go under the seat to help mitigate this, but I haven't purchased one. Either way, we love it and maybe should've picked a more gender neutral colour. I wish we had started with this car seat from the beginning with our first kid.
User
Three wide car seat. Very convenient
These seats are great. I have six of them. Three kids, three vehicles,They are easy to fold, easy to swap in and out and they fit three wide in my sedan.There are very few car seats that fit three wide.I keep buying the same seats, with the same color so when I rotate them between vehicles the children aren't picky as to " that's my seat"
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