Marathon is your basic....the Decathalon and Blvd are just like the marathon only with more options. Blvd has "wings" and you adjust the straps by dialing a knob...no re-threading the straps. Not sure what the other has but I'm pretty sure it has wings but you dont adjust the straps the same way.
Josh-10/1/87, Brittany 3/9/91, Mandi 7/26/92, Michelle 9/11/06
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GHM will probably give a better answer, but the Blvd (which is what we have) has side impact protection. The other two do not. I *think* the weight limit on the Decathalon is less than the Marathon, but they look like the same seat to me, otherwise.
The Blvd and the Marathon have the same height/weight limitations.
ETA: I take that back. The Decathalon has the same weight/height restrictions as the other two. It was the Roundabout I was think of.
The Marathon and Decathlon are very similar. The Marathon is the "base" model; the Decathlon is one step up and has an infant support pillow and has slightly different harness adjuster.
The Boulevard has a no re-thread harness and true side impact head protection (which is why I would choose the Boulevard over the other two).
Re: Friend wants to know differences between...
GHM will probably give a better answer, but the Blvd (which is what we have) has side impact protection. The other two do not. I *think* the weight limit on the Decathalon is less than the Marathon, but they look like the same seat to me, otherwise.
The Blvd and the Marathon have the same height/weight limitations.
ETA: I take that back. The Decathalon has the same weight/height restrictions as the other two. It was the Roundabout I was think of.
The Marathon and Decathlon are very similar. The Marathon is the "base" model; the Decathlon is one step up and has an infant support pillow and has slightly different harness adjuster.
The Boulevard has a no re-thread harness and true side impact head protection (which is why I would choose the Boulevard over the other two).