Britax Marathon Vs. Britax Boulevard – Best Britax Convertible

Britax Marathon Vs. Britax BoulevardIf you’re in the market for a convertible car seat, by now you probably already know that Britax is at the top of the line when it comes to safety.  Their convertible car seats offer safety features that no other brands offers. They test each one of their car seats extensively, by matching and performing all of the standard Federal crash tests themselves, as well as other tests like the side-impact test.

The Britax Marathon 70 and the Britax Boulevard 70 are two of these convertible car seats. As you can see from the picture above, these two convertible car seats are very similar. The Britax Boulevard is basically the next step up from the Britax Marathon, offering “True” Side Impact Protection, as opposed to basic Side Impact Protection. Sounds redundant doesn’t it, well let me explain.

Skip To: Short Summary


Britax Marathon 70 Convertible Car Seat - Azalea

Britax Marathon 70 – Azalea @ Amazon

The Britax Marathon offers a rigid shell and deep side walls, this is considered to be basic Side Impact Protection. The shell and side walls act as a barrier, shielding your child from vehicle intrusion, containing your child’s head and body, and distributing crash forces away from them. The Britax Boulevard offers everything that the Britax Marathon offers, including the rigid shell and deep side walls, as well as a head restraint lined with energy absorbing foam which works to minimize side-to-side head movement, and keeps the neck and spine aligned.

Britax Boulevard 70 Convertible Car Seat - Caitlin

Britax Boulevard 70 – Caitlin @ Amazon

One other difference is that the Britax Boulevard 70 offers two models, one with CS (Click & Safe), and one without. The Click & Safe is a Snug Harness Indicator that gives you an audible click when the harness is properly tightened. It is designed to take the guess work out of securing your child properly. If you get the Britax Boulevard 70 CS, you’ll end up paying about $40 dollars more. I personally think it’s a waste of money. In fact, car seat technicians DO NOT recommend it. They feel that it gives the caregiver a false sense of security.

Aside from that, the only other difference is price. The Britax Marathon 70 Convertible Car Seat lists for $289.99, and the Britax Boulevard 70 Convertible Car Seat lists for $319.99. The Britax Boulevard 70 CS (Click & Safe) lists for $339.99. Right now at Amazon, each one of these convertible car seats is on sale. Check out the current sale prices below, keep in mind that these sale prices are subject to change daily, so click on the link to see what today’s current sale price is.

Amazon Sale Prices

Britax Marathon 70$199.99 – 31% OFF

Britax Boulevard 70$234.99 – 27% OFF

Britax Boulevard 70 CS (Click & Safe)$236.99 – 30% OFF

Let’s recap shall we…….

What’s the difference between the Britax Marathon and the Britax Boulevard?

  • The Britax Boulevard offers True Side Impact Protection which includes a head restraint lined with energy-absorbing foam.
  • The Britax Marathon does not offer the CS(Click & Safe) model, the Boulevard does.

If you’re still undecided, check out the full reviews listed below.

Britax Boulevard 70 Convertible Car Seat Review & Video Demo

Britax Marathon 70 Convertible Car Seat Review & Video Demo


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