The Best Booster Car Seat

Every parent wants his or her child to be safe, comfortable and happy, especially when it comes to long car trips. This makes a booster seat an important purchase, especially since it will be used for many years. But with so many options out there, how do you know which booster seat is best?

We spent months driving around town testing seven of the most popular and highly-rated booster seats available (with the help of a bribed six-year-old) to find out which booster seat tops the list, and we’ve determined the Britax – Pioneer is the best booster car seat overall.

While this product is on the higher end of the cost spectrum, the old adage “you get what you pay for” certainly rings true with the Britax. It has superior safety features including tether and anchor, an impact-absorbing base and a steel frame. These features are matched by its qualities of convenience like the ease of cleaning, a quick-adjust harness, the ability to recline and dual cup or snack holders.

Top Pick: Britax - Pioneer

Not the cheapest option available, but the safety features and convenience make this an investment for your child you won’t regret.

Table of contents

How we selected finalists to test

As a father of four, our primary researcher for this review has been using booster seats for over 13 years. This experience gave him a good basis from which to begin his research.

Starting with customer reviews on retail websites like Amazon.com, we only selected booster car seats with exceptional ratings from a large pool of reviewers. We then turned our attention to reviewer feedback to learn from countless owners what they loved, hated and required from a booster seat.

We eliminated any contenders that had repeated complaints about important features, such as feeling too flimsy, too upright or uneven.

Supplementing this research with blogs and video reviews, we narrowed our list of contenders to seven strong finalists.

To top it off, we spent time looking into the physics of booster seat safety, and how it affects a child during a collision.

The seven best booster car seats

lineup of the top ranking booster seats

ProductPriceWeight (lb)Safety RatingConvenience Rating
1. Britax - Pioneer$$$$22.45/52/5
2. Bubblebum$0.63/55/5
3. Cosco - Topside$2.42/54/5
4. Evenflo - Big Kid$6.63/54/5
5. Graco - Affix Backless$5.64/53/5
6. Graco - Backless TurboBooster$3.63/54/5
7. Graco - Nautilus 65$$$19.65/52/5

Does your child need a booster car seat?

Child passenger safety laws are regulated at the state level and are subject to frequent change. Specific rules vary per state and usually include a combination of age, height and weight restrictions.

A helpful digest of child passenger safety laws is provided by AAA for all 50 U.S. states, Puerto Rico and Canada. We suggest you start there to determine the booster seat requirements for your child before purchasing a seat.

Keep in mind that although your child may meet your state’s requirements for not using a booster seat, it may still be a good idea depending on their size. Ensuring that your car’s seat belt rests on the center of the collarbone (not pressing into the neck or falling off the shoulder) is of primary importance in ensuring your child’s safety. Your child’s height plays a major factor in when you should graduate them out of a booster.

If your child happens to be too small or light for a booster seat, they may benefit from safety inside the house: check out our review about baby gates for use throughout the house especially if you have stairs or off-limits areas for babies.

How a booster car seat helps in a car crash

A booster seat elevates your child so that he or she better fits the adult-size restraining belt that cars are equipped with. Both lap and shoulder placement of the seat belt are important when a crash occurs and pressure from the impact pushes the passenger.

The shoulder portion of the safety belt should be placed in the center of the chest and collarbone, and the lap portion should be low and tight on the lap (not up against the stomach or hipbone).

Safest Pick

Britax - Pioneer

Steel reinforcement, tether & anchor system, and an impact-absorbing base makes this a top safety choice.

Improper placement of the belt can increase the risk of internal and external bruising, stomach, liver or spleen damage, or lumbar spine fractures. The use of a booster seat can reduce a child’s risk of crash-related injury by as much as 45 percent.

The seat belt’s job is to diffuse and divert the force from a crash into the stronger areas of the body (the sternum, rib bones and pelvis), thus lessening the risk of damage to soft tissue and internal organs. Placing your child in a booster seat helps to ensure the safety belt does its job. This is important, because improper placement can actually increase injury instead of protect your child.

Important features to consider

  • Worthwhile cost – Every parent knows that the expense of raising a child is immense, so looking for the best bargain on purchases is almost always preferred. But when it comes to child safety, most of us are willing to spend a little extra as along as our investment is worthwhile. A booster seat should provide a wide range of features without breaking the bank.
  • Convenience for the child – A booster seat should be as comfortable as possible for the rider. Features that factor into comfort include high arm rests, adequate padding, storage for a sippy cup or snack and positioning that is not too upright (especially when dozing).
  • Convenience for the parent – Moving car seats from one vehicle to another is part of parent life, and can be quite inconvenient if the transfer takes a lot of time and effort. Weight, size and tether/harness installation are all factors that play into these transfers. In addition, the process of buckling (and unbuckling) a child is another point to consider. Other convenience factors include the ability to easily remove the fabric for washing and the adjustability of the harness or shoulder-belt holes.
  • Materials used – Is the car seat made entirely of plastic, or is there a metal framework to fortify the construction? Is the fabric durable and easily washed? In addition, does the flame-retardant fabric use toxic chemicals?
  • Longevity – A car seat should last as long as possible and span the widest range of age, height and weight requirements to maximize your investment.

How we tested

To start, we asked our six-year-old researcher how he would rank his preference for a booster seat. Doing his best to set aside factors like color and “coolness,” he named his top three favorites to sit in as the Evenflo – Big Kid, the Britax – Pioneer and the Graco – Backless TurboBooster. Really though, his good opinion was granted among all of our candidates except the two that did not have adequate support for his arms (the Cosco – Topside and the Bubblebum).

His feedback raises an excellent point to consider when selecting a booster seat: it may be a good idea to get your child’s buy-in if you have narrowed down your selection to a few excellent options. Sometimes color, “cool” factor or simple intuition will do more to convince your child that a particular seat is best than anything you can say to persuade him or her.

The comfort test

comfort features data chart

One of the recurring complaints among booster seat reviews is a hard seat and inadequate padding. To test the comfort, we not only sought insight from our six-year-old helper, but measured the amount of padding on each seat.

This was done by placing a needle through the seat cushion until it couldn’t go down any farther. We then measured the remaining space between the tip of the needle and our fingers to see how much cushion is in each seat.

We also measured the height of the armrests from the base of the seat. The general rule confirmed by our vocal six-year-old “test dummy” is that the higher the armrests, the more comfortable the ride. We must note that the armrests for the Cosco – Topside are so low in relation to the height of the seat that they hardly qualify as armrests.

Most Comfortable

Britax - Pioneer

Again the Britax stands out with well-placed armrests and more padding than its competitors providing the most comfortable ride.

The cushion of the Bubblebum, which is an inflatable booster seat and therefore could not be subjected to the “needle test,” was measured by pressing down on the seat and measuring the distance between the top and bottom. That’s why you see such a marked difference between the Bubblebum and the other contenders in the above chart. Feedback from our six-year-old researcher indicated that this cushion of air also resulted in more comfort, but that the additional comfort was neutralized by the fact that there was nowhere to rest his arms.

The convenience test

convenience factors data chart

To measure the convenience of installing each car seat, we used a stopwatch to time multiple installations and averaged the results. These installations were performed on an easily-accessible middle seat of minivan. Obviously, installing boosters in seats that are harder to access, such as the back seat of a sedan, would cause average installation time to increase.

All of the boosters in our pool of candidates have coverings that are made of durable fabric that can be washed with mild soap and warm water. With the exception of the Bubblebum, these coverings can be removed from the seat to facilitate washing and drying.

We also weighed each seat, as a heavy seat is harder to transfer from car to car. The results for both of these tests are charted below.

It’s worth noting that our top pick scored lowest in each of these convenience factors. While this weighed in our decision, we felt that safety and longevity are likely to be more important factors than the convenience of periodically installing or transferring a booster seat. If you are a parent who has to transfer a car seat more frequently than average, we suggest you read our best pick among the backless booster options in the section below.

Features and accessories

features comparison chart

We’ve itemized the accessories and features for each car seat to compare at a glance. Since these are all positive features, the more checkmarks, the better!

The best booster car seat: Britax – Pioneer

Britax Pioneer car booster

Because of the five-point harness featured by our top pick, the Britax – Pioneer, the weight and height range are increased so that children can use this seat at an earlier age. Some children can transfer directly from an infant car seat without the need of an interim seat. (All of our backless boosters start at 40 pounds, while the Pioneer starts at 25.)

Top Pick

Britax - Pioneer

A great investment in your child’s safety, the Britax - Pioneer provides comfort, longevity and durability.

Because the back can be removed, the car seat becomes a backless booster for the older kids who don’t want the stigma of a “baby seat.” While some kids prefer having a back on their seat, others might see moving to a backless booster as a sign of “getting big.” Our six-year-old tester, for instance, preferred riding in the backless varieties, not because they were more comfortable, but because he felt he had outgrown the backed models.

With nearly three centimeters of cushion, good armrest height, and an easily adjustable harness, the Britax Pioneer provides a comfortable ride for your child. The fabric is durable and stain resistant/repellant, and the safety features are second-to-none. These features include steel framing, a tether-and-anchor system, and an impact-absorbing base.

closeup of the Britax's padding

One other factor that helps to push the Pioneer into first position has to do with its toxicity. Although we could not find any web research testing the toxicity of our particular seven booster seat models, we were able to find research for car seats from some of the same manufacturers.

While we cannot absolutely verify that similar materials are used between car seats and booster seats for each manufacturer, it is not an unreasonable hypothesis that this is the case. In the research, it was noted that Britax has made immense strides in removing toxic chemicals from their products earning them a reputation as a more eco-friendly and naturally-based manufacturer.

On the downside, the Britax – Pioneer is heavy and bulky, making transfer from one car to another a chore. If your situation calls for daily movement of the seat between cars, you may want to consider the lighter backed booster, the Evenflo – Big Kid.

If your child is older and is no longer in need of a back or harness, you may want to forego the expense of the Britax and choose our top pick for a backless booster, the Graco – Affix.

Key takeaways

  • Our top booster seat, the Britax – Pioneer, has fantastic safety features that include steel reinforcement, an impact-absorbing base and sides and a tether/harness system to keep it securely in place.
  • Although heavier and bulkier than a backless booster, we feel that the safety and longevity features outweigh the inconvenience of transferring or installing a car seat and are worth the cost.
  • The weight range of the Britax – Pioneer spans from 25 to 110 pounds, making it an investment in your child’s safety that will last for many years.

The best backless booster: Graco – Affix

Graco's Affix booster

If the price of the Britax – Pioneer is beyond your means, or if your child is already more than 39 pounds, you may want to consider skipping to a backless booster. Our first choice in this category is the Graco – Affix Backless.

The easily-adjusted anchor system in the Graco Affix helps the booster seat stay in place firmly and securely. These anchors increase the safety of the seat in a crash. They also make it more convenient for you or your child to buckle the seat belt because the seat does not shift from side to side or create a gap by shifting forward.

Best Backless Pick

Graco - Affix

A great option for your older child, which remains securely in place, unlike most other backless boosters due to its anchor system.

Weighing in at 5.6 pounds, with an installation time of just under 14 seconds, this booster transfers easily and quickly from car to car. It’s armrests sit at a good height but our six-year-old research assistant remarked that he preferred the fabric coverings of the seat’s close relative, the Graco Backless TurboBooster. While the Graco Affix could do with a bit more padding , overall it is a comfortable ride at a great price.

Some reviewers on Amazon did indicate that the Affix can tend to be more secure on one anchor than another, causing the seat to be slightly misaligned, but we did not experience this during our testing. If we had, it would easily be corrected by pulling on the anchor strap to tighten the booster against the seat of the vehicle.

As a parent of four, our primary researcher in this review appreciates both the safety and the convenience of a booster that is anchored into the car.

Key takeaways

  • The Graco Affix has easily adjustable anchor straps that keep the booster seat secure and centered.
  • Lightweight and backless, the Affix transfers easily from car to car and doesn’t require a lot of room.
  • Backless boosters are for children who are 40 pounds or heavier; if your child is lighter, you’ll probably want to invest in a booster seat with a back.

The best travel booster: Bubblebum

the Bubblebum blowup booster seat

For a quick trip to Hawaii or for the babysitter to have on hand, we recommend the Bubblebum as a great booster for infrequent use. You can think of it as the “spare tire” of the booster world.

This booster weighs 0.6 pounds and installs in just under seven seconds. In addition, you can deflate it to pack it in a suitcase, and reinflate it in no time when you reach your destination.

Although we wouldn’t recommend with Bubblebum for long-term use, we were surprisingly impressed with its ability to “get the job done” at such a light weight and small size. The beauty of an inflatable booster seat is that it packs well and is quickly inflated/deflated with minimal effort (just a few puffs of breath into the valve).

Best Travel Booster

Bubblebum

Reduce check-in or carry-on weight with an inflatable seat. Great for keeping as a spare for infrequent use.

A few of the Amazon reviewers reported that their Bubblebum slowly deflated over long car trips, but we did not experience this. Our Bubblebum held its shape throughout hours of testing. It’s reasonable to assume that age might deteriorate the softer plastic of the Bubblebum over time, rendering it useless. Again, long-term is not our recommendation for this model.

With a smaller surface area than the other seats, the Bubblebum could potentially be uncomfortable with children who are especially wide on the back side. It’s fabric covering is not removable, but given how light it is, this doesn’t necessarily hinder the ability to easily wash and dry it as needed.

We were pleasantly surprised by how little effort was required to inflate the Bubblebum. In only required a few breaths of air, less than your average balloon, in fact.

At an extremely low price, it’s a great idea to have this back-up option for emergencies or for a relative or caregiver to have handy.

Key takeaways

  • Weighing in at less than a pound, and able to be deflated and reinflated as necessary, the Bubblebum packs easily for travel.
  • The Bubblebum installs in no time by slipping the lap belt into the two holders on the seat’s sides.
  • Not recommended for long-term use, the Bubblebum lacks armrests, storage, or many of the safety features found among our other candidates.

Other finalists we tested

Graco – Nautilus 65 3-in-1 Harness Booster Car Seat

Graco's Nautilus 65 car seat

The Graco – Nautilus 65 was a close contender to our top pick, the Britax – Pioneer because it has so many of the same features. Among these excellent features are steel framing, impact-absorbing construction, adequate storage, tether and anchors, and the ability to accommodate smaller children (the Nautilus starts at 23 pounds).

As with the Pioneer, however, the safety features of the Graco – Nautilus 65 make it both bulky and heavy, weighing in at about 20 pounds. With an installation time of around 41 seconds, transfer from car to car can be a hassle, especially if it must be installed in a harder-to-reach back seat.

Only slightly less comfortable to sit in than our top pick, the Graco – Nautilus 65 ranks just barely under the Pioneer and still makes an excellent choice for a safe, long-lasting booster car seat.

Evenflo – Big Kid Booster

Evenflo - Big Kid booster

The Evenflo – Big Kid is a lightweight, easy-to-install booster that provides overall comfort and convenience, though some additional padding wouldn’t be a terrible idea, in our opinion.

Its construction is entirely plastic, however, so it is not as durable or safe as some of its competitors. The back helps to position the seat belt accurately on your child’s collarbone and is easily removed if your child prefers a backless ride.

Extremely lightweight, the Evenflo has a much more flimsy feel than its counterparts, but our six-year-old liked the feel of the smooth fabric and happened to be impressed because the particular model we tested was blue, his favorite color! (Parenting tip: check for color options on whichever booster you decide to purchase, and involve your child in the decision to gain a higher degree of buy-in.)

An inexpensive option, the Evenflo is a middle-of-the-line booster seat that fits the needs of those who have to transfer seats frequently, but still prefer a booster seat with a back.

Graco – Backless TurboBooster

Graco's backless booster

The Graco – Backless TurboBooster is similar in almost every way to its brother, the Graco – Affix, except that the armrests are padded with fabric,which our six-year-old tester preferred. The fabric used for the seat is more prone to getting snagged however, and it lacks the anchors of the Affix.

Without the anchors, this booster seat is more apt to slide out of place, and (annoyingly) to cover the seat belt latch, which can frustrate the child or parent trying to buckle the belt. For an extra ten dollars, we recommend the Affix and its anchoring system over the TurboBooster.

Cosco – Topside Booster

Cosco - topside booster seat

With armrests that are too low to be useful and very little cushion, the Cosco – Topside is our least favorite contender among the seven finalists.

The Cosco – Topside is lightweight, easy to install and inexpensive, but like several Amazon reviewers, we found that the hardness of the seat made long car rides uncomfortable.

Though the Costo – Topside is a high-ranking choice on Amazon and other retail websites, we would recommend any of the other finalists before the Cosco – Topside Booster.

The bottom line

If you are looking to invest in a durable, safe, comfortable and long-lasting booster seat, we recommend the Britax – Pioneer. This seat converts from a five-point harness car seat to a backless booster as your child grows, which means you won’t have to purchase another seat as your child gets bigger. If your child is already more than 39 pounds, you may want to go for our top pick in the backless category, the Graco – Affix, which anchors into the seat and doesn’t slip or slide.

Top Pick: Britax - Pioneer

Because of its superior safety features, comfort, and longevity, we heartily recommend the Britax - Pioneer as a fantastic choice for a sturdy booster seat that your child can continue to grow in.

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