Diono Radian 3R vs. Graco 4Ever DLX Grad 5-in-1: Which is Better? (2024)

Compare the two car seats side-by-side

Hi there! We're here to help you decide between the Diono Radian 3R and the Graco 4Ever DLX Grad 5-in-1.

Our goal is to provide you with the information you need to feel confident that you're choosing the optimal car seat for your family's needs and budget. Let us know if you have any other questions!

At A Glance

Diono Radian 3R Graco 4Ever DLX Grad 5-in-1
Type Convertible

Rear-Facing Forward-Facing High Back Booster
Convertible

Rear-Facing Forward-Facing High Back Booster Backless Booster Seat Belt Trainer
Current price
In stock
$169.99
In stock
$319.98
Rating 4.70 4.88

Our Thoughts

The Diono Radian 3R and the Graco 4Ever DLX are both high-quality convertible car seats, designed to grow with your child from infancy through the school years. Both have strong safety features and are well-regarded by parents worldwide.

The Radian 3R's standout feature is its slim profile, making it possible to fit three across in most cars – a game-changer for larger families or those with smaller vehicles. With reinforced steel construction, it offers robust safety and longevity. It provides the ability to switch between rear-facing, forward-facing, and high-back booster modes. However, its weight and size can prove challenging to handle, and some parents report difficulties with installation - especially in more compact cars.

On the other hand, the Graco 4Ever DLX boasts a 5-in-1 design that transitions from an infant car seat to a seatbelt trainer, potentially offering a longer usage lifecycle. Besides, its innovative SnugLock technology ensures fast and secure installation in less than a minute using the vehicle's seat belt or LATCH system, making it a breeze to switch between cars. Despite these stellar features, some parents have noted that the Graco model may not fit well in smaller vehicles and that the recline options are limited.

When comparing the weight capacities for the seats' configurations, Diono Radian 3R offers a maximum weight capacity of 100 pounds in its booster mode, giving it a slight lead over the Graco 4Ever DLX, which maxes out at 120 pounds. However, the Graco 4Ever DLX wins when we consider the forward-facing mode, with a maximum weight of 65 pounds compared to Diono's 65 pounds. This means the Graco 4Ever DLX might be a better choice if you have a heavier child who prefers forward-facing.

When considering approval for air travel, both models are FAA approved for their forward and rear-facing modes. If you're a frequent traveler, both these seats would be a good choice.

Given their similarities and differences, the choice between the Diono Radian 3R and the Graco 4Ever DLX will largely depend on your specific needs, vehicle size, and your child's size and preferences. For parents who will need to fit multiple car seats or have a smaller car, the slim design of the Diono Radian 3R will likely be a better choice.

On the other hand, if convenience and versatility across multiple growth stages are your top priority, the Graco 4Ever DLX offers compelling value with its 5-in-1 design. This car seat eliminates the need for purchasing multiple seats as your child grows, which in the long run could be more cost-effective despite the initial higher price point than the Diono Radian 3R.

Key Details

Radian 3R 4Ever DLX Grad 5-in-1
Diono Radian 3R Graco 4Ever DLX Grad 5-in-1
Brand Diono Graco
Type Convertible

Rear-Facing Forward-Facing High Back Booster
Convertible

Rear-Facing Forward-Facing High Back Booster Backless Booster Seat Belt Trainer
Weighted Rating 4.70 4.88
1 yr Price Range $155.39 - $199.98 $288.87 - $399.99
Current price
In stock
$169.99
In stock
$319.98
Value

Offers a long lifespan and versatile seating options, making it a cost-effective choice over time.

Offers 5 stages of use at a reasonable price point.

Safety

Features a steel frame for enhanced safety and reliability, scoring high in safety ratings.

Steel-reinforced frame and extensive crash testing.

Features

Despite its minimalist design, it includes essential features like memory foam padding and a foldable design for travel (converts into a backpack!)

Innovative 5-in-1 design and side impact protection.

Installation

Installation experiences vary; some find it straightforward, while others face challenges, especially in smaller vehicles.

SnugLock system ensures a quick, secure fit.

Cleaning

The seat cover is removable for cleaning, but some users report challenges in maintenance and durability.

Easy, 60-second cover removal for washing.

Size

Its slim profile is a standout feature, allowing for three-across seating in most cars.

Slimmer design for a better fit in tight spaces.

Review Click here Click here

Comparison of Specifications

While features and reviews provide a sense of real-world use, the specs offer quantifiable details on sizing, limitations, and more. Comparing key measurements and ranges side-by-side is crucial for ensuring you choose a seat properly fitted for your child and vehicle.

We've compiled the weight limits, height limits, dimensions, and other vital statistics for the Diono Radian 3R and the Graco 4Ever DLX Grad 5-in-1. This data will confirm whether each seat can accommodate your child's current size and projected growth. Specs like seat depth and width are also important for assessing fit with your car's backseat.

Review the following key measurements for both seats. Pay special attention to the height and weight limits to ensure your child falls within the safe ranges.

Height and Weight Limits

Rear-facing

Diono Radian 3R Graco 4Ever DLX Grad 5-in-1
Height Range 0 - 44 inches
Weight Range 5 - 40 pounds 4 - 40 pounds

Forward-facing

Diono Radian 3R Graco 4Ever DLX Grad 5-in-1
Height Range 0 - 57 inches 0 - 49 inches
Weight Range 20 - 65 pounds 22 - 65 pounds

Booster

Diono Radian 3R Graco 4Ever DLX Grad 5-in-1
Height Range 0 - 57 inches 43 - 57 inches
Weight Range 50 - 100 pounds 40 - 120 pounds

Dimensions and Weight

Diono Radian 3R Graco 4Ever DLX Grad 5-in-1
Width 17.0 inches 18.0 inches
Height 28.5 inches 26.2 inches
Depth 16.0 inches 19.8 inches
Weight 25.9 pounds 24.1 pounds

Core Specifications

Diono Radian 3R Graco 4Ever DLX Grad 5-in-1
Model Year 2018 2021
Made In China China
Frame Material Reinforced Steel Reinforced Steel

Safety and Compliance

Diono Radian 3R Graco 4Ever DLX Grad 5-in-1
Federal Safety Standards Meets all standards Meets all standards
Configurations FAA-Approved for Airplanes Forward-Facing
Rear-Facing
High Back Booster
Backless Booster
Forward-Facing
Rear-Facing
High Back Booster
Backless Booster
Seatbelt Trainer
NHTSA Ease-of-Use Ratings Rear-Facing Mode
Overall 2 out of 5 stars
Labels 1 out of 5 stars
Instructions 3 out of 5 stars
Securing 2 out of 5 stars
Installation Features 2 out of 5 stars
Forward-Facing Mode
Overall 3 out of 5 stars
Labels 1 out of 5 stars
Instructions 3 out of 5 stars
Securing 3 out of 5 stars
Installation Features 5 out of 5 stars
Booster Mode
Overall 1 out of 5 stars
Labels 1 out of 5 stars
Instructions 4 out of 5 stars
Securing 1 out of 5 stars
Installation Features 1 out of 5 stars
Not rated by NHTSA.
Previous Recalls This car seat has never been recalled. This car seat has never been recalled.

Features

Diono Radian 3R Graco 4Ever DLX Grad 5-in-1
Attachment Methods LATCH
Seatbelt
LATCH
Seatbelt
Harness Type 5-Point 5-Point
Cup Holders Has cup holders. Has cup holders.

Warranty and Durability

Diono Radian 3R Graco 4Ever DLX Grad 5-in-1
Manufacturers Warranty Length 1 year 1 year
Lifespan 10 Years 10 Years

Additional Links

See all Diono car seats See all Graco car seats
Full review of the Diono Radian 3R
Full review of the Graco 4Ever DLX Grad 5-in-1