Britax is the biggest name in car seats, and it’s easy to see why. Their products are known for their quality construction and attention to safety details. Britax offers a wide variety of car seats that fit your family’s needs, whether you’re looking for something basic or want all the bells and whistles. Let’s take a look at three popular Britax models:
1-Britax Boulevard,
2- Marathon
3- Advocate
Table of Contents
What is the difference between Britax Boulevard, Marathon, and Advocate?
Britax Boulevard is the most expensive option, but it also has the best safety features. If you are looking for a seat that will last from infancy through your child’s teenage years, this is the one for you.
It has an adjustable headrest and harness that can be used with kids as small as 4 pounds up through 100 pounds (the maximum weight limit). The Marathon is in between Britax Boulevard and Advocate when it comes to price–it’s not quite as expensive as Boulevard, but still more than Advocate.
However, there are some downsides to choosing Marathon over other options: its harness lacks adjustability so if your child grows out of their current age range before they reach max height/weight limits (which happens frequently), then they may need another seat altogether before they’re ready to graduate from booster mode into something else entirely like another car seat or booster-only device like Britax’s own BubbleBum travel pillow which provides added support while sitting upright during long trips away from home.
Boulevard vs. Marathon vs. Advocate: Specs & Comparison Chart
Specifications | Britax Marathon | Britax Advocate | Britax Boulevard |
---|---|---|---|
Dimensions (H x W x D) | 23 x 18.5 x 23.5 inches | 30.5 x 20.5 x 23 inches | 23.5 x 18.5 x 23 inches |
Weight | 19.5 pounds | 30.6 pounds | 24.5 pounds |
Weight capacity | Rear-facing: 5 to 40 pounds, Forward-facing: 20 to 65 pounds | Rear-facing: 5 to 40 pounds, Forward-facing: 20 to 65 pounds | Rear-facing: 5 to 40 pounds, Forward-facing: 20 to 65 pounds |
Height capacity | Rear-facing: up to 49 inches, Forward-facing: up to 49 inches | Rear-facing: up to 49 inches, Forward-facing: up to 49 inches | Rear-facing: up to 49 inches, Forward-facing: up to 49 inches |
Safety features | SafeCell impact protection, steel frame, integrated cup holders | SafeCell impact protection, steel frame, integrated cup holders, three layers of side impact protection | SafeCell impact protection, steel frame, integrated cup holders, two layers of side impact protection |
Harness | 14-position harness, no-rethread design | 14-position harness, no-rethread design | 14-position harness, no-rethread design |
Installation | Easy-on/off LATCH connectors, level indicators | Easy-on/off LATCH connectors, level indicators | Easy-on/off LATCH connectors, level indicators |
Recline | 7 recline positions | 7 recline positions | 7 recline positions |
Fabric options | Multiple options available | Multiple options available | Multiple options available |
Which one is best for my family?
- Britax Boulevard is the most expensive
- Britax Marathon is medium priced
- Britax Advocate is cheapest.
The best one depends on your budget and how much you want to spend, but there are some other things that should be considered before making your decision.
What are their features?
- Britax Boulevard has a steel frame, while the Marathon and Advocate models have a steel frame.
- The Britax Boulevard car seat has side impact protection, while both of its counterparts also offer this feature.
- The Britax Boulevard can be installed using LATCH or seat belt installation methods, whereas only the latter is available for both Marathon and Advocate models (as they do not come with LATCH).
Where can I get them?
The Britax Boulevard ClickTight is available at Babies R Us, Target, Amazon and other online retailers.
The Britax Boulevard ClickTight

- Brand: BRITAX
- Installation Type: Clicktight Installation
- Material: Alloy Steel
- Color: Black Contour
- Orientation: Rear Facing
- Product Dimensions: 18.5″D x 23″W x 23.5″H
- Item Weight: 29.5 Pounds
- Maximum weight recommendation: 65Pounds
- Harness Type: 5-Point
- Number of Height Positions: 14
Pros
- The Boulevard comes with two layers of side impact protection to keep your child safe in the event of a collision.
- It’s very easy to install and uninstall with the ClickTight installation system, which ensures a secure fit every time.
- The car seat is outfitted in a machine-washable seat cover, making it easy to clean and maintain.
- You can adjust the harness without re-tethering it, allowing for easy adjustments as your child grows.
- You don’t have to uninstall your car seat to remove the seat cover, which is a convenient feature for parents.
Cons
- The Boulevard doesn’t come with cup holders, which may be inconvenient for some families.
- It’s the most expensive out of the three models we’ve discussed, so it may not be the best choice for families on a budget.
- It’s a bit bulky in the rear-facing position, which may be an issue for those with smaller vehicles.
- It’s pretty heavy compared to other car seats on the market, which may make it difficult to move between vehicles.
The Britax Marathon ClickTight is available at Babies R Us, Target, Amazon and other online retailers.
The Britax Marathon ClickTight

- Brand: BRITAX
- Installation Type: Seat Belt
- Material: Alloy Steel
- Color: Mod Black
- Orientation: Rear Facing
- Product Dimensions: 18″D x 23″W x 23.5″H
- Item Weight: 28.5 Pounds
- Maximum weight recommendation: 65 Pounds
- Harness Type: 5-Point
- Number of Height Positions: 1
Pros
- It is the cheapest of the three models, making it a great option for families on a budget.
- The car seat comes with 7 recline angles and an automatic level indicator, allowing parents to adjust the car seat to the perfect angle for their child’s comfort and safety.
- It features the ClickTight installation system, making installing the car seat in your vehicle easier and safer.
- Britax Marathon ClickTight weighs the least compared to the Advocate and Boulevard and takes up less space in your vehicle, making it a great option for families with smaller vehicles.
- It is very easy to install and uninstall, making it convenient for parents who need to move the car seat between vehicles.
- The car seat is outfitted with a machine-washable cover, which makes it easy to keep clean.
Cons
- While the Britax Marathon ClickTight is the cheapest out of the three models, it’s still relatively expensive compared to other car seats on the market.
- Some parents may find that the car seat doesn’t have enough padding, which may affect their child’s comfort during long car rides.
- When the car seat is in the rear-facing position, it can be quite bulky, which may make it difficult to fit in smaller vehicles.
The Britax Advocate ClickTight is available at Babies R Us, Target, Amazon and other online retailers
The Britax Advocate ClickTight

- Brand: BRITAX
- Installation Type: Seat Belt, Clicktight
- Material: Alloy Steel
- Color: Gray Ombre
- Orientation: Rear Facing
- Item Weight: 30.1 Pounds
- Maximum weight recommendation: 65 Pounds
- Harness Type: 5-Point
- Number of Height Positions: 14
- Minimum Weight Recommendation: 5 Pounds
Pros
- The installation system and clear instructions are designed to be easy to install.
- It comes with a 14-position harness that can be adjusted as your child grows, ensuring a comfortable fit and maximum safety.
- Advocate features three layers of side impact protection to keep your child safe in the event of a collision.
- A car seat is heavily padded to maximize your child’s comfort and support during long car rides.
- The seat cover is machine-washable, making it easy to keep the car seat clean and fresh.
Cons
- The Advocate is relatively heavy compared to some other car seat models, which may make it more difficult to move from car to car.
- The car seat is priced on the higher end of the spectrum, which may make it less accessible for some families.
- Unlike some other car seat models, the Advocate does not come with a cup holder, which may be inconvenient for parents and children on longer car rides.
Britax is best for families with a little more money to spend.
Britax is the most expensive brand of car seat, but it’s also the safest, so if you can afford it, this is your best bet. If you’re looking for something that will last your child through their early years and beyond (from birth through 8 years old), then Britax has several options available that are worth considering. They have been making safe car seats since 1972 and have earned an excellent reputation among parents who want peace of mind while driving their children around town or across state lines.
The Marathon has many features that make it stand out above other brands: Larger side impact protection wings help keep infants snugly ensconced in their seats; adjustable headrests provide extra support as babies grow into toddlers; buckles allow easy one-handed fastening/unfastening even when wearing gloves; deep foot wells offer added comfort during long trips by absorbing some jostling from bumps in roadways; integrated cup holders keep drinks within reach without needing extra space inside your vehicle’s storage compartment.
Britax Boulevard vs Marathon vs Advocate Video Comparison
Conclusion
We hope this review has been helpful for you. We know that when it comes down to choosing a car seat, there are a lot of factors to consider. We also understand how overwhelming it can be when trying to decide which one is right for your family!
Frequently Answer Questions
Is Britax advocate or Boulevard better?
It ultimately depends on your priorities. If safety is your top concern and you’re willing to spend a bit more, the Advocate may be the better option due to its extra side impact protection and 3-layer impact absorption system.
However, if you prioritize luxury and want a car seat with premium fabric options, the Boulevard may be a better fit.
Which is better Britax Boulevard and Marathon?
Again, it depends on your priorities. The Boulevard offers more luxury features, such as plush padding and premium fabric options, while the Marathon is more versatile and can be used for children from birth up to 65 pounds.
Is Britax Advocate Worth It?
If you’re willing to invest in a top-of-the-line convertible car seat with superior safety features, the Advocate is definitely worth considering. However, if you’re looking for a more budget-friendly option, the Marathon or Boulevard may be a better fit.
How Many Years is Britax Boulevard Good for?
All Britax convertible car seats, including the Boulevard, have a 7-year expiration date from the date of manufacture.
What are the pros and cons of each car seat?
Pros and cons for each car seat are outlined above. It’s important to consider your priorities and needs when choosing a car seat for your child.
Which one is best for my child?
The best car seat for your child depends on their age, weight, and height, as well as your priorities and needs. Consult with your pediatrician and consider the specifications and features of each model before making a decision.
Convertible Car Seat Opinions Wanted – Britax or Chicco?
Both Britax and Chicco are highly rated brands for convertible car seats. Ultimately, the best option for you and your child will depend on your preferences and needs. Consider factors such as safety features, ease of installation, and budget when making your decision.