10 Best Car Seat For 4 Year Olds 2025 in the United States

The Graco Extend2Fit Convertible Car Seat is designed to grow with your child, making it a good choice for 4-year-olds who still need a secure harness system. It offers both rear-facing and forward-facing options, which is great since rear-facing use is safer for younger children and the seat supports rear-facing up to 50 pounds — higher than many seats. For older toddlers, it converts to forward-facing with a 5-point harness and can hold children up to 65 pounds. One standout feature is the adjustable extension panel that gives extra legroom, helping your child stay comfortable on longer rides.

The no-rethread headrest and harness make adjustments easy as your child grows, so you don’t have to fuss with complicated straps. The seat installs using the LATCH system, which is common and generally straightforward, though the seat itself is on the heavier side at around 19 pounds, making it less convenient to move frequently between vehicles. Safety is a priority here, with Graco’s ProtectPlus Engineering that provides solid crash protection. The materials used are durable and comfortable, with a soft cotton-like cover. The seat also offers multiple reclining positions to keep your child comfortable.

It is important to note that car seats have expiration dates (usually around 6 years), so be sure to check that before purchasing or using a seat. This seat is a strong pick for parents wanting a versatile, safe, and comfortable option for their 4-year-old that can last through several growth stages.

The Graco Extend2Fit Kenzie 2-in-1 Convertible Car Seat is designed to accommodate children from infancy up to toddler years. It supports a weight range of 4-50 pounds in the rear-facing position and 22-65 pounds when forward-facing, making it a versatile option for growing children. The car seat features a robust steel construction and meets US FMVSS 213 crash test standards, ensuring a high level of safety.

Its Graco ProtectPlus Engineering includes advanced side-impact testing and a 5-point harness system for added security. The no-rethread headrest and harness adjust easily to fit your child as they grow, and the harness storage pockets provide convenience for parents when placing their child in the seat. Comfort is also a priority with up to 5 inches of additional legroom for rear-facing positions and 10 reclining options.

The compact size (21.5” depth x 19.5” width x 23.5” height) and lightweight design (19.25 pounds) make it relatively easy to handle and install. The InRight LATCH system simplifies installation with a one-second attachment feature and an audible click to confirm secure installation. Additionally, the car seat is fully recyclable, which is a plus for environmentally conscious families. However, some users might find the size a bit bulky for smaller vehicles, and the weight might be a concern for frequent transfers between cars. Nevertheless, the Graco Extend2Fit Kenzie stands out as a reliable and comfortable car seat option for your growing child.

The Graco Tranzitions 3-in-1 Harness Booster Seat is a versatile car seat that grows with your child, transitioning from a forward-facing harness seat to a highback booster and then to a backless booster. This adaptability makes it a cost-effective option for parents, accommodating children from 22 to 100 pounds. The 5-point harness system and the Simply Safe Adjust Harness System, which allows adjustments with one hand, contribute to its user-friendly design.

Safety is a significant focus, with Graco ProtectPlus engineering ensuring protection in various crash scenarios, meeting rigorous US FMVSS 213 standards. The eight-position adjustable headrest and machine-washable seat pad and covers add to the comfort and convenience, making it easy to keep clean and suitable for growing children. Additionally, the two cup holders provide practical storage for drinks and snacks, a handy feature for parents on the go.

On the downside, the car seat is only forward-facing, which may not suit all parents' preferences for extended rear-facing usage. At 17.19 pounds, it is relatively lightweight, making it portable but potentially less robust than heavier models. Installation via seat belt may be less straightforward compared to models with LATCH system compatibility. Despite these minor drawbacks, the Graco Tranzitions 3-in-1 is a reliable and easy-to-use choice.