Graco 4Ever Extend2Fit DLX 4-in-1 Convertible Car vs Safety 1st Smooth Ride Convertible Car Seat,
Updated August 2026 — Graco 4Ever Extend2Fit DLX 4-in-1 Convertible Car leads on weight and legroom.
The Graco 4Ever Extend2Fit DLX offers superior safety and versatility, making it a better long-term investment compared to the more affordable Safety 1st Smooth Ride.
Why Graco 4Ever Extend2Fit DLX 4-in-1 Convertible Car is better
Safety Features
Graco has advanced safety features with a steel-reinforced frame.
Comfort
Graco offers more recline positions and legroom.
Longevity
Graco supports a wider weight range for longer use.
Why Safety 1st Smooth Ride Convertible Car Seat, is better
Price
Safety 1st is significantly cheaper.
Portability
Safety 1st is lightweight and travel-friendly.
Ease of Cleaning
Safety 1st has a machine-washable seat pad.
Overall score
Specifications
| Spec | Graco 4Ever Extend2Fit DLX 4-in-1 Convertible Car | Safety 1st Smooth Ride Convertible Car Seat, |
|---|---|---|
| Safety Rating | High | Moderate |
| Recline Positions | 6 | 5 |
| Weight Limit | 120 lbs | 50 lbs |
| Cup Holders | 2 | 1 |
| Installation | Easy | Moderate |
Dimension comparison
Overview of the Graco 4Ever Extend2Fit DLX and Safety 1st Smooth Ride
The Graco 4Ever Extend2Fit DLX is a versatile 4-in-1 convertible car seat, while the Safety 1st Smooth Ride is a 2-in-1 option. The Graco model is priced at $349.00, making it a premium option compared to the Safety 1st’s price of $94.99, which is about 73% cheaper. This significant price difference reflects the varying functionalities and features each seat offers, catering to different budgets and needs for families.
Safety Features Comparison
The Graco 4Ever Extend2Fit DLX emphasizes safety with its steel-reinforced frame and Graco's ProtectPlus Engineered safety system, ensuring high standards during crashes. In contrast, the Safety 1st Smooth Ride meets federal safety standards and provides side impact protection, offering peace of mind for parents. Although both seats are designed with safety in mind, the Graco model's advanced safety features position it as a more robust option for families prioritizing maximum protection.
Comfort and Adjustability
In terms of comfort, the Graco 4Ever Extend2Fit DLX features a 6-position recline and a 10-position headrest, allowing it to adapt as your child grows. The added benefit of a 4-position adjustable extension panel provides up to 5 extra inches of legroom for rear-facing comfort, which is a significant advantage for longer journeys. The Safety 1st Smooth Ride, while offering five harness height settings and three buckle locations for adjustability, does not match the extensive comfort options available in the Graco model.
Ease of Installation
Installation ease is crucial for parents, and the Graco 4Ever Extend2Fit DLX shines with its InRight LATCH system, allowing for a hassle-free one-second attachment. The Safety 1st Smooth Ride also features LATCH compatibility, making installation quick and straightforward. However, the Graco’s system is designed for even greater convenience, which can be beneficial for busy parents who need to frequently install and uninstall the car seat.
Portability and Travel Friendliness
The Safety 1st Smooth Ride is designed for portability, being lightweight and compact, making it an excellent choice for travel. It is certified for use on aircraft, which adds to its travel-friendly appeal. The Graco 4Ever Extend2Fit DLX, while not specifically highlighted for travel, offers a more robust design that may be less convenient for frequent travel but provides better long-term usability as it transitions through four stages. For families who travel often, the Safety 1st model’s features may be more appealing.
Capacity and Longevity
When it comes to capacity, the Graco 4Ever Extend2Fit DLX accommodates a wider weight range as it transitions from rear-facing (4–50 lbs) to forward-facing (22–65 lbs), then to a highback booster (40–100 lbs), and finally a backless booster (40–120 lbs). This versatility means the Graco seat can be used for a longer period as your child grows. Conversely, the Safety 1st Smooth Ride has a more limited range, supporting rear-facing (5–40 lbs) and forward-facing (30–50 lbs), which may necessitate an earlier transition to a booster seat, potentially reducing its lifespan in usage.
Storage and Convenience Features
The Graco 4Ever Extend2Fit DLX is equipped with two cup holders, providing convenient storage for drinks and snacks during travel. It also features a no-rethread harness, allowing for easy adjustments as your child grows. The Safety 1st Smooth Ride includes a removable, dishwasher-safe cup holder and a machine-washable seat pad, enhancing convenience for cleaning. While both seats offer useful features, the Graco’s design focuses on adaptability and long-term use, while the Safety 1st is tailored for easy maintenance.
Which should you buy?
Choosing between the Graco 4Ever Extend2Fit DLX and the Safety 1st Smooth Ride ultimately depends on your family's needs and budget. If you are looking for a long-term investment in safety, comfort, and versatility, the Graco model is an excellent choice, albeit at a higher price of $349.00. However, if you need a more affordable and travel-friendly option, the Safety 1st Smooth Ride, priced at $94.99, provides essential features and ease of use for growing families. Each option has its strengths, so consider your specific requirements when making a decision.

