Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing

This is the definitive choice for growing families needing to fit three children across a single row, provided they can manage its heavy steel frame…

Full manufacturer title

Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black Radian 3R Fits 3 Across Black Jet

Typical price

$200

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Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10 Years 1 Car Seat, Slim Fit 3 Across, Jet Black Radian 3R Fits 3 Across Black Jet image 1

Ravvy verdict

86.1 / 100

This is the definitive choice for growing families needing to fit three children across a single row, provided they can manage its heavy steel frame and technical installation process.

Skip it if: You are frequently switch the seat between different vehicles.
Best alternative: Graco Extend2Fit Convertible Car Seat, Rear and Forward Facing Car Seat with Adjustable Extension Panel for Extra Legroom, Great Gift for Baby Shower or Baby Registry, Gotham Gotham 2.0 2-in-1 (Parents prioritizing extended rear-facing safety for taller children.)

How it scores on what matters

Space efficiency98.5
Safety construction96.0
Longevity94.0
Ease of cleaning84.0
Portability72.0
Ease of installation65.5

Ravvy factor scores, 0 to 100, derived from specs, owner reviews and category norms.

What it is

The Diono Radian 3R is the original slim-fit 3 across All-in-One convertible car seat, designed to protect from baby to booster seat (5 - 120 lb). Lovingly engineered with the famous Diono steel reinforced frame and now rear facing for even longer, expect 10 years of safety from just one car seat. Designed and engineered with complete rear facing protection, so you can keep them in a safe rear facing convertible car seat for longer up to 50 lb. Built with a mechanically engineered, reinforced steel frame, made from automotive grade high strength steel, the radian is always ready to shield and protect. And when your family grows, the slim-fit design will fit 3 across in most vehicles without compromising child safety or passenger comfort. Our SuperLATCH system (UAS Compatible) makes installation easy and super secure. As travel car seat experts, Diono have naturally built in super portable and convenient features to the Radian 3R with original fold for easy transport and storage and easy remove machine washable covers. The radian is also aircraft certified (FAA approved), so you can take safety with you wherever you go.

What owners praise

What to know first

Specifications

UPC: 677726506200
Brand: Diono
Color: Black Jet
Unit Count: 1 Count
Item Weight: 23 pounds
Orientation: Convertible Seat
Part Number: 50620
Harness Type: 5-Point
Manufacturer: Diono
Model Number: 50620
Material Type: Alloy Steel, Plastic, Polypropylene, Polystyrene
Item Type Name: All-in-One
Installation Type: Latch
Included Components: radian® 3R car seat, detachable rear-facing base, foam harness pads, lap belt cushion, rear-facing top tether, Instruction manual
Age Range Description: Newborn
Item Dimensions D x W x H: 16.1"D x 16.9"W x 28.4"H
Maximum Height Recommended: 57 inches
Number of Height Positions: 1
Rear Facing Maximum Weight: 50 pounds
Rear Facing Minimum Weight: 5 pounds
Infant Toddler Car Seat Type: Convertible Car Seat
Forward Facing Maximum Weight: 120 pounds
Forward Facing Minimum Weight: 26.5 pounds
Maximum Weight Recommendation: 120 pounds
Minimum Height Recommendation: 18.1 inches
Minimum Weight Recommendation: 5 pounds
Manufacturer Warranty Description: 12 months
Global Trade Identification Number: 00677726506200
Rear Facing Car Seat Maximum Height: 44.1 inches
Forward Facing Car Seat Minimum Height: 29.9 inches

Frequently asked questions

Where can you buy the Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing?

Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing is sold through Amazon, and Diono also lists it through its own site and major retail partners. The buy link on this page goes straight to the current Amazon listing, which is where stock and pricing update most often.

How much does the Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing cost?

The last price Ravvy recorded was $200. Retail pricing on car seats moves with promotions and stock, so treat that figure as a reference point and check the live listing before you buy.

How do you get the Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing for a cheaper price?

Three tactics work best: watch for holiday and seasonal sale events when car seats discounts run deepest, compare the open box or renewed listing against new stock, and check whether Diono is running a coupon or bundle. Adding the product to your Ravvy wishlist keeps it handy so you can revisit the listing when prices drop.

Is the Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing in stock right now?

It was in stock at our last check. Availability on popular car seats can change within hours, so the live listing is the source of truth.

Is the Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing worth it?

Ravvy scores it 86.1 out of 100.

What are the key specs of the Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing?

UPC: 677726506200. ASIN: B083F5P7VP. Brand: Diono. Color: Black Jet.

What are good alternatives to the Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing?

Compare it against the other scored picks in Car Seats on Ravvy. We rank every option in that group by the same criteria, so you can see which model wins on value, quality, and owner sentiment before you decide.

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