Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear vs Graco Turn2Me 3-in-1 Convertible Car Seat, London
Updated August 2026 — Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear wins on portability and comfort, Graco Turn2Me 3-in-1 Convertible Car Seat, London wins on installation.
The Diono Radian 3R offers better value and long-term usability, while the Graco Turn2Me excels in ease of installation and adjustability.
Why Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear is better
Price
Diono is approximately 44% cheaper than Graco.
Rear-Facing
Diono allows rear-facing up to 50 lbs.
Space
Diono's slim-fit design fits 3 across in most vehicles.
Why Graco Turn2Me 3-in-1 Convertible Car Seat, London is better
Installation
Graco features SnugLock for quick installation.
Adjustability
Graco has a 10-position headrest for better fit.
Crash Protection
Graco includes ProtectPlus Engineering for enhanced safety.
Overall score
Specifications
| Spec | Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear | Graco Turn2Me 3-in-1 Convertible Car Seat, London |
|---|---|---|
| Price | $221.38 | $399.99 |
| Modes | 3-in-1 | 3-in-1 |
| Installation | SuperLATCH | SnugLock |
| Safety | Steel Frame | ProtectPlus |
| Comfort | Memory Foam | Plush Inserts |
Dimension comparison
Price Comparison
The Diono Radian 3R is priced at $221.38, while the Graco Turn2Me 3-in-1 Convertible Car Seat is priced at $399.99. This makes the Diono approximately 44% cheaper than the Graco model. For parents looking to maximize their investment in a car seat, the lower price point of the Diono Radian 3R could be quite appealing, especially given its long-term usability. Additionally, the Graco’s higher price may be justified by its unique features, but for those on a budget, the Diono offers a compelling value without sacrificing essential safety and functionality.
Safety Features
Safety is paramount when choosing a car seat, and both car seats deliver impressive protective features. The Graco Turn2Me includes Graco ProtectPlus Engineering, which enhances protection in various crash types. This means it has been specifically designed to offer better safety during frontal, side, rear, and rollover crashes. On the other hand, the Diono Radian 3R boasts a reinforced steel frame, engineered for maximum strength and safety. This model emphasizes complete rear-facing protection, allowing children to stay rear-facing up to 50 pounds. Both seats rank well in safety, but the Graco may have a slight edge with its multi-faceted crash protection design.
Ease of Use
When it comes to ease of installation and adjustment, the Graco Turn2Me shines with its SnugLock technology that allows for installation in less than one minute. This feature can be a game-changer for busy parents who need a quick and secure setup. The Diono Radian 3R, while slightly less rapid in installation, features a SuperLATCH system which also makes securing the seat straightforward. Additionally, the Diono offers easy-to-remove machine washable covers, an important aspect for maintaining cleanliness. Both products provide user-friendly features, but the Graco’s rapid installation could be more beneficial for those who frequently switch between vehicles.
Comfort and Adjustability
Comfort is critical for children’s car seats, and the Graco Turn2Me excels with its adjustable headrest that offers 10 different positions. This feature ensures that as your child grows, the seat can be adjusted to maintain a safe and comfortable fit. The Diono Radian 3R also prioritizes comfort with its ComfortPlus Memory Foam included in the design. This cushioning can enhance long trips for your child. While both seats provide comfort, the Graco’s more extensive adjustability may provide a better long-term fit as your child grows.
Versatility
The Diono Radian 3R is marketed as a 3-in-1 convertible car seat, transitioning from rear-facing to forward-facing and eventually to a booster seat, accommodating children from 5 to 120 pounds. This means it can effectively be the only car seat you need for up to ten years. The Graco Turn2Me also offers 3-in-1 versatility, supporting rear-facing from 4 to 40 pounds, forward-facing from 22 to 65 pounds, and a highback booster from 40 to 100 pounds. While both seats can serve multiple purposes, the Diono may have an advantage with its longer rear-facing capability, appealing to safety-conscious parents.
Size and Fit
For families concerned about space, the Diono Radian 3R’s slim-fit design is particularly noteworthy, allowing it to fit three across in most vehicles without compromising safety or comfort. This can be a crucial factor for larger families or those with smaller cars. The Graco Turn2Me, while not specifically highlighted for its compact size, still provides a secure fit but may not be as accommodating in tighter spaces. In this category, the Diono offers a distinct advantage for parents juggling multiple car seats or passengers.
Aesthetics and Design
Both car seats have appealing designs, but they cater to different aesthetic preferences. The Diono Radian 3R is available in a sleek Jet Black, providing a modern look. The Graco Turn2Me, on the other hand, comes in a London color scheme, which may appeal to those looking for a more stylish yet functional option. Ultimately, the choice in aesthetics may come down to personal preference, but it is essential to ensure that the chosen design complements the vehicle’s interior.
Which should you buy?
Ultimately, the choice between the Diono Radian 3R and the Graco Turn2Me comes down to your specific needs and priorities. If budget is a significant concern, the Diono offers a more affordable option with great safety features and long-term usability. However, if you value quick installation, enhanced crash protection, and adjustable comfort, the Graco Turn2Me may be worth the higher price. Both car seats provide excellent features, but evaluating your lifestyle and requirements will guide you toward the best choice for your family.

