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

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 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 Tranzitions 3-in-1 Harness Booster Car Seat is a versatile option designed to grow with your child from around 2 to 10 years old, covering forward-facing harness, highback booster, and backless booster modes. For a typical 4-year-old, it works well as a forward-facing seat using a 5-point harness system that supports children weighing 26.5 to 65 pounds, providing good safety for this age group. Its key advantage is the No-Rethread Simply Safe Adjust Harness, which lets you adjust the headrest and harness together in one step, making it quick and easy to fit your child securely as they grow.

Installation via LATCH is straightforward and generally secure, though it might require some patience if unfamiliar. The seat is lightweight (about 15 pounds) and portable, which is helpful for busy families who move the seat between cars. Comfort is addressed with nine adjustable recline positions and a machine-washable cover, adding convenience. The seat supports children up to 100 pounds and 57 inches tall in booster modes, so it can be used for many years.

Transitioning between modes as your child grows may require some time to adjust the seat properly each time, and while portable, it is bulkier than simpler booster seats. Like all car seats, it has an expiration date (usually around 6 years from manufacture), so plan to replace it eventually. This car seat is a solid choice for parents wanting a long-lasting, adaptable seat that balances safety, ease of use, and comfort for a growing child.