Britax Marathon 70 Convertible Car Seat Review

Best Britax Marathon 70 Convertible Car Seat Review

Britax Marathon 70 Convertible Car Seat PhotoIn case you did not already know, having kids is expensive.  One way I have found to help save a few dollars is to get a convertible car seat.  These can help save some you some money because you avoid having to buy new car seats every time your baby grows.  Instead, these convertible car seats grow with your baby as they convert from a back facing car seat to a front facing one.

However, not all convertible car seats are created equal.  There are a number of different options out there and it can be a little intimidating to go through all the different options.  What I found worked best for me was to begin by looking at the factors that were most important to me.  These factors were safety, ease of use, a durable quality, and a stylish look.  What I found is after all my research, the best option was the Britax Marathon 70 Convertible Car Seat.  Here, is why I consider it to be the best choice:


The safety of my baby is very important to me.  This is even more important to me with child car seats because of the greater risk of having a car accident with my child.  For this reason, I am willing to pay a premium for car seats that can offer me greater safety.  The Britax Marathon 70 Convertible Car Seat is an expensive car seat but I believe it to be well worth it because it is also the best in safety.  It has a number of great features including SafeCell Technology, integrated steel bars, and energy absorbing Versa-Tether, etc.  These features all combine to give greater safety to children and are a major reason why this child crib is the most popular convertible crib option on

Ease of Use

Another factor that is very important to me is that I can easily put in the car seat and take it out.  We use multiple cars so it is important that I can take the car seat out of one car and put it into the other.  The great news for me is the Britax Marathon car seat does very well in this department.  It is designed to fit all kinds of different car seats and uses latch connectors that are very easy for setting the child seat to the actual car seat.

The ease of use also extends to setting up the seat belt harness.  It is designed so that you can adjust the height of the strap harness by merely pressing a button and sliding it up.  You won’t have to do any rethreading or pinching like you would have to do with a number of other convertible child seats.  This makes it really easy to get a snug fit for your baby and do it almost instantly.

Durable Quality

I also wanted to get a convertible car seat that could last for me for a number of years and also be easy to clean.  I discovered the Britax Marathon convertible car seat offers a seat that can handle up to 70 lbs so it should be able to help my little one for up to 3 or 4 years.  In addition, it has a cover that is easy to clean without disassembling or uninstalling the car seat.  This is great for me as it allows me to keep the car seat clean without the fear that I will be creating more work for myself.

Stylish Look

I also think it is important that the convertible car seat looks good.  A little vanity can’t hurt and I was impressed with the options available to people with the Britax Marathon 70 Convertible Car Seat.  They offer five different color options: Allison, Cowmooflage, Crimson, Onyx, and Waverly.  I think my favorite is the Cowmooflage that has a fun look to it.

Add all these different factors up, and it should be easy to see why I was so impressed with the Britax Marathon 70 Convertible Car Seat.  If you have read enough and would like to find out where you can get it at the best price with free shipping, click on the following link: Britax Marathon 70 Convertible Car Seat.


Safety Features

How Is Your Child Protected From Front Side Collisions?

Britax Marathon Convertible Car Seat PhotoMany people may not be aware of this but the front seat of a car can be very dangerous to kids in car seats.  This has caused some companies like Britax to design a convertible car seat that can work effectively at helping children avoid being slammed into the bag of the front car seat.  To do this, Britax puts its car seats through twice as many safety tests as are required by the National Highway Safety Administration.  In particularly, they put an extra emphasis on protecting the head in collisions.

Lowered Center of Gravity

The Britax Marathon 70 Convertible Car Seat is setup so that it provides a lowered center of gravity for children in the seat.  This helps provide greater stability if a crash occurs.  In addition, it helps reduce the impact of forward flexing of the car seat as the body naturally thrusts forward with a front side collision.   The result is that the child does not extend out as far as other convertible car seats and reduces the likelihood that he/she will hit the back of the front car seat.

SafeCell Technology

SafeCell technology is a patent pending technology that is designed to compress on the impact of a crash.  These engineered structures are found at the base of the seat and when an impact occurs, the result is that the child automatically reduces their center of gravity further.  This creates more stability in the car seat and also creates less forward motion of the head and upper body reduces the chance of hitting the back of the front car seat.

Versa Tether

A Britax Marathon convertible car seat also uses a staged release tether webbing also known as versa tether.  This webbing is important because it is also designed to help slow the forward rotation of the head and upper body in the event of a collision.  It is able to do this thanks to a two point attachment that time releases the top part of the car seat.  The result is less forward rotation and less likelihood that there will be an impact with the back of the front seat.

Integrated Steel Bars

The Britax Marathon convertible car seat also uses integrated steel bars.  This help provide strength that secures the car seat to the vehicle.  It also helps with front end collisions because it reduces the forward flexing a child seat during a crash.

Harness Ultra Guard System

The Harness Ultra Guard System also helps provide some resistance to forward rotation to also reduce forward thrust of the child in a front side collision.

What About Side Impact Collisions?

It is great to hear it does well against front side collisions, but I was also concerned with how the car seat would perform against other impacts like side impact collisions.  What I learned is the Britax Marathon 70 Convertible Car Seat has a rigid seat shell combined with deep side walls.  Plus, the seat shell is lined with energy-absorbing EPP (Expanded Polypropylene) foam.  These features work in concert to help protect your baby by redistributing crash forces away from your child and shield him/her from vehicle intrusion.  Finally, it helps keep your child’s head, back and body within the shell and thus reducing injury risk in the process.

Any Other Safety Features?

Believe it or not, there is.  The straps and buckle have substantial padding around them.  This is important because it helps reduce the risk of strap burn around the shoulder and neck area and also the area between the legs near the buckle.  This extra padding can help make your child better tolerate a long car ride which will be of benefit to everyone in the car.

Ease of Use Features

How Easy Is The Installation?

One thing that many people are curious about is how easy is it to setup the Britax Marathon 70 Convertible Car Seat in their car and will it fit their vehicle.  These are good questions and what most people find out is that it is very easy to install the car seat.  The lower latch connectors make it very easy to connect the children’s car seat to the actual car seat.  You won’t have to worry about any crazy wrist movements or pinching your fingers to get this one connected.

In addition, the Britax Marathon convertible car seats are designed to fit all vehicles.  This is great news because many people worry that it may not fit their car.  We have only read a few isolated cases where it did not fit a car seat and that was the older version.  The new version is smaller in comparison and offers an even better fit.  Also, customers with leather seats were happy to report that the convertible car seat does not move either which is not the case with some other convertible car seat models.  The result is more safety for their little one.

How Easy Is It To Buckle Your Child Up?

Another concern that many parents will have is how easy is it to actually put their baby in the car seat and to get it to a snug fit.  This is actually an area where the Britax Marathon car seat shines.  It does this thanks to several different features.

Tangle Free Five Point Harness

This feature is nice because it helps provide a snug custom fit.  What customers like most about it is that you won’t have to rethread anything if you make an adjustment to the harness.

Ten Harness Height Settings

To also help provide a snug fit, the harness height can be adjusted along 10 different settings.  This is important because you will need to adjust the height as your baby grows.  However, what you will love to here is that you won’t have to the straps apart to do this and can instead do it simply by pressing and button and moving the whole harness up or down.  Customers love the fact that they don’t have to do any re-threading or anything else.

Optional Infant Positioning Insert (sold separately)

This is an extra item that can be purchased if you want get a snugger fit for small infants.  This features works to help accommodate the smallest of infants and can then be removed as they child grows.

How Easy Is It To Move From Car To Car?

Although a lot of people love the Britax Marathon Convertible Car Seat so much that they get one for each car they own, many people will use one to shuttle between their two cars.  The good news for them is that the Britax Marathon Car Seat is designed for fast and easy installation so customers should have little difficulty taking it from one car and putting it in correctly with the other.  The lower latch connectors do a great job of securing the convertible car seat to your car but also provide a fast release button to help remove the car seat quickly when needed.

Any Other Convenience Features?

You bet!  The Britax Marathon 70 Convertible Car Seat allows people to be able to set it to recline in both the forward and rear positions.  This is unique in that a number of convertible car seats do not offer this feature.  Customers will also find that you get 3 different reclining positions so that you can find just the right setting for your baby.  This can help make the difference in ensuring your child goes right to sleep.

The car seat also comes with an easy to remove cover set along with an infant pillow and matching comfort pad or belly pad.  These are easy to clean and won’t require you to disassemble or uninstall the cart seat.  It is nice little extras like these that really make this product stand out.


Durable Quality Features

One concern that some customers have is that the Britax Marathon Convertible Car Seat is too bulky and heavy.  However, this concern is really misplaced.  There is no question that this car seat is heftier than some other options but that is to your benefit.  The slightly heavier weight allows you to be able to get more out of your convertible car seat.  The reason is that you will be less likely to have to switch over to a bigger car seat as your child ages.  The reason is that this car seat can handle up to 70 pounds which is a significant step up from most other car seats that have a max weight capacity of 50 pounds.  What this means to you is that you will get more bang from your buck by opting for this car seat.  Plus, you get the extra added benefit of increased safety thanks to its extra heft.


Stylish Look Features

Style matters even in convertible car seats.  Customers will love to find out that they have 5 different colors to choose from: Allison, Cowmooflage, Crimson, Onyx, and Waverly.  I am partial to the Cowmooflage because of its fun look but the other options are just as popular and provide a way for you to show a little a bit about your own personality.


What Others Are Saying?

Britax Marathon Car Seat PhotoThis convertible car seat has received rave reviews from most customers where it has received 5 out of 5 stars on  If this weren’t impressive enough.  It is also currently the #11th best selling Baby product on Amazon right now and the #1 best selling convertible car seat on Amazon.  This is really remarkable because these category have thousands upon thousands of different products in them.

However, you may also want to see what customers are actually saying about the Britax Marathon 70 Convertible Car Seat.  Here, we have put together some snippets of customers comments about this great product:

“Best Car Seat Ever… I LOVE LOVE LOVE this car seat! Its cushy, soft and has good safety ratings. My daughter loves it too…We bought the Britax brand because we take long car trips…The protectors around the straps and buckles are very nice and cushy to prevent any strap burn…Additionally, I like how it has 3 seat recline settings…perfect for at night trips. I am thoroughly satisfied with this product.”

Actual Customer From

“This is a great car seat. It fits well in my Honda CRV…It was pretty easy to install, and I appreciate the added safety features…I wish I’d shelled out the extra money and gone with this one first…Britax Marathon is the right size, has great safety features and is easy to use. I definitely recommend it.”

Actual Customer From

“My son has been using this seat for about one month…I could tell it was a much better seat than his previous Baby Trend….I feel confident that this seat is very safe…Highly recommend.”

Actual Customer From

“I already own the Britax Roundabout 55…but I liked the cowmooflage print so I upgraded to this model for my second car seat…I am even more impressed with this model….The safety ratings on Britax car seats is amazing and I recommend them to everyone…”

Actual Customer From

“We love this car seat…bought one for both our kids for each car. It was very easy to install and is very secure…Britax is the one for us.”

Actual Customer From


Anything Else I Need To Know?

Yes, the Britax Marathon 70 Convertible Car Seat comes with a one-year limited warranty.  Also, this product is currently eligible for free 365 day returns if the order is fulfilled by Amazon.  This means if you buy through the links we provide, you can rest easier knowing you are well protected.


Where Can You Buy The Britax Marathon 70 Convertible Car Seat?

You can buy the Britax Marathon Convertible Car Seat from Amazon.  This product is currently offered with free shipping and from we have been able to determine offers the best deal when compared to other online retailers.  Click here to view this product on Amazon.


Where Can You Read More Reviews For Britax Marathon 70 Convertible Car Seat?

The best place for reviews from people who actually use this product are on  Click below to find out more.

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