See All
Strollers - All
See All
See All
See All
See All
See All
See All
See All
Strollers - All
See All
See All
See All
See All
See All
See All

Contact Us
Reviews for

Britax Marathon Convertible Car Seat

LOVE: 353 NEUTRAL: 266
REGRET: 20 WANT: 242

share this

what parents are saying

Britax Marathon Convertible Car Seat

Patty M.

as seen on weelists

get answers from parents who have this

Parent Name
Ask
Save This Buy Buy

what parents are saying

LOVE: 353 NEUTRAL: 266
REGRET: 20 WANT: 242
    • Kellie M.

    • Chapel Hill, North Carolina

    Great car seat that lasts a very long time! Oct 19, 2017

  • I feel so comfortable with this carseat and how safe it is for my kiddo. A little hard to install but I really like it! Oct 18, 2017

See More Reviews

(including your friends’ reviews!)
Featured Parents' Reviews
    • Patty M.

    • Winchester, California

    We love this and our son is comfortable and we know he is safe Sep 29, 2017

  • Did a lot of research. Found this to be the highest crash rated carseat. Easily adjustable. Snug and cushiony for little one. Wish the harness straps were longer. Jul 31, 2017

  • I received this car seat as a gift and it is seriously way too huge to put a newborn in it, even with an infant snuggle! We plan to use it as a second car seat once our baby is 6+mo old. Its heavy too Jun 10, 2017

  • One of our favorite car seats. Easy to install. Cleans up awesome. Has foam that can be broke if not careful with instal or cleaning though. Adjustments easy. Fits in most vehicles. It is heavy though May 22, 2017

  • Easy to get in and out when we need to travel or switch cars. Only struggled when I needed to use a lap belt. Had to watch the you tube video a few times to get it in right. May 20, 2017

  • This was not one of my favorite car seats. It's pretty wide and takes up a lot of space and the straps often get tangled or stuck. It does feel pretty sturdy but I still wouldn't recommend. May 16, 2017

  • I've used this carseat for 2 kids and it has held up nicely. My kids seemed comfortable and I felt they were very safe. It is a bit heavy though for travel or taking it out of the car often. May 02, 2017

  • My daughters used a Marathon from birth. It's easy to use, easy to clean. I also love the print. Apr 07, 2017

  • We've had two britax marathons for years and have been super pleased with them. Quality seats that have really held up well through two kids. Nov 16, 2016

  • Comfy for the babe and easy to install. Oct 08, 2016

  • We have 2 of these car seats they are that amazing. The are roomy, comfortable, but still have room in the back seat for 3 across. Love Britax! Jul 12, 2016

  • Ok, we currently have 6 car seats. Insane. This is our favorite convertible! We also have the Clek and the Britax Boulevard and like this one best. Jul 06, 2016

  • Excellent car seat. Easy install and adjustability. Jun 30, 2016

  • I will agree with most complaints that this car seat is quickly outgrown because the straps only go so far up. This isn't a problem for my small kids. The small base is great. No cup holder though May 08, 2016

  • Love this car seat. Seems very sturdy and safe. My daughter seems comfortable in it. Easy to install. Be aware, there is no metal ball/level for recline; this wasn't an issue for me but FYI. Apr 22, 2016

  • Prefer the maxi cosi pria over this car seat. Safety ratings are great but it just doesn't seem as cozy as it could be Apr 22, 2016

  • This is a good car seat. I might not be all the way to love, but it's safe, reasonably decent to install, and comes in some fun colors. Apr 22, 2016

  • Love this car seat! So easy to install , comfortable for baby and doesn't take up much room front to back when rear facing! Love the cowmoo cover too Feb 01, 2016

  • Like. I do have issue with how easily the cover is coming apart after having to wash it. The strings are pulling off. Replacing it has been hard. Seat is very safe, top priority. No cup holders bummer Feb 01, 2016

  • Love this convertible car seat! It works well front and rear-facing, and isn't too much of a space hog in our Prius backseat. The cow print is our favorite, and the removable cover is clutch. Oct 02, 2015

  • The more expensive models are better. I find the straps tough to adjust, but overall a good seat. Dec 13, 2014

    • Liz C.

    • 30047, Georgia

    Owned 3 Marathons, and they fit all the children well.Easy to adjust.They are bulky. Very well padded, and the covers withstood normal kid abuse. Couldn't do 3 across, and 1 had buckle issues. Oct 17, 2014

  • Easy to install, easy to use, and fits into a small car with room for someone to fit in the front. Oct 06, 2014

  • We have it in the cow print. Love it! Sep 30, 2014

  • Just put this in a few weeks ago. Our daughter had no issues sleeping and/or hanging out in it for our 9.5 hr drive for vacation last week. Sep 30, 2014

    • Kali P.

    • Everett, Washington

    Britax is the best car seat around! I am so glad to have this in my car for our growing boy. Sep 26, 2014

  • It is a bit bulky but it's easy to move from car to car. I don't worry about it not being safe for my daughter (now if only I could afford the click tight one!) Sep 24, 2014

    • Jenny D.

    • United States of America

    Have it, just haven't used it yet. We will next summer when it's time to get out of the infant carrier. Sep 08, 2014

  • Easy to get in and out of, easy to install. Not sure if spending this much is necessary, we do have a cheaper one in one of our cars and we like it just as well. Jul 23, 2014

  • Easy to clean and keeps kids rear-facing for a LONG time with plenty of leg room. My three-year-old is the size of a typical five-year-old and it's his favorite seat for long travels. –Chelsea D. Apr 03, 2014

    • Karen B.

    • United States of America

    This car seat is super safe but a total pain to use in a sedan. The straps constantly get twists. Wish I'd stuck with Chicco. Mar 29, 2014

    • Sara S.

    • Saskatoon, Saskatchewan

    We just purchased this seat so we aren't sure yet how it will be. Baby clips in very easily and once you've figured it out, adjusting the seat to fit is not too hard. Study the manual, though!! Mar 16, 2014

  • I don't love this car seat, but it was the safest, best thing I could find after much research. It is just so bulky and hard to move to another car (but it seems they are all that way). Feb 03, 2014

  • Have been using this seat with my 9.5 month old for a month now. He seems pretty comfy in it, but the straps are slightly awkward. Overall very easy to use and install. Jan 31, 2014

  • We like that our seat has straps that are less likely than others to get tangled, but the straps still get tangled http://hintmama.com/2013/11/13/todays-hint-3-tricks-for-untangling-car-seat-straps/ Jan 13, 2014

  • I own this and really love it. You can't beat Britax for safety and it's easy to get your kids in a out of. Can be pricey though. Jan 11, 2014

  • This is a high quality product and I love all of the safety features. I thought it was complicated until I installed it & realized it really wasn't. We have 3 of these now! (me, husband, grandma!) Dec 30, 2013

    • Maria D.

    • Los Angeles, California

    So far so good. My son if comfortable and I found this seat highly rated and I feel as though he's safe. Dec 09, 2013

    • Cindy M.

    • United States of America

    Bought 2 of these (one for our car and one for grandma's car) - baby looks comfortable and we trust the safety feature of Britax car seats! We got the 70 G3 model in Onyx. Dec 03, 2013

  • I use this in my car and on several airplane trips with much success. It is easy to install and even easier to clean. Oct 11, 2013

  • Fantastic car seat. Sep 04, 2013

  • Suck it up, spend the $, and just get this seat. Not only does it get top safety reviews, but it will grow with your kid-- if you're not picky about colors, you can get good deals on these. Jul 03, 2013

  • comfortable and durable. easy to wash. Jun 26, 2013

  • did hours of research and ended up with this one. could not be happier. so easy to install. super safe. love. May 13, 2013

  • great seat! This is a good model if you're looking for a comfortable, easy to use seat from Britax thats in a more reasonable price range. May 11, 2013

  • A little bulky, but easy to install, use and clean May 03, 2013

  • I have this and highly recommend getting it professionally installed (I went to Children's Hospital free car seat installation). I have a TINY car and it takes over the back seat but James is really happy in it. It's just tricky to get him out/in. Feb 20, 2013

  • Not as big as some of the other britax car seats but just as sturdy. Easy to take off the cover and clean. Feb 07, 2013

More Parents' Reviews
    • Kellie M.

    • Chapel Hill, North Carolina

    Great car seat that lasts a very long time! Oct 19, 2017

  • I feel so comfortable with this carseat and how safe it is for my kiddo. A little hard to install but I really like it! Oct 18, 2017

Everyone
  • Q: Is this better for a 1-2 yr old rather than an infant? Trying to decide if I can get away with one system instead of 2 (1 for the infant stage and 1 for the toddler stage) or not. Thanks!

    asked by Secretly Expecting - Nov 18, 2014

  • Yes, this is better for an older child. I would not recommend it for an infant. I went with the Chicco KeyFit when my son was born and switched him to the Britax Marathon when he was about 8 months or so.

    Nicole C. - Nov 18, 2014

  • Agreed. We bought this around our son's 1st birthday and he was in an infant car seat (Graco Snugride) before then. Not ideal if you only want one car seat, but we have been more than happy with it as he grows.

    Aly C. - Nov 19, 2014

Login to Answer
  • Q: How is this in a compact car?

    asked by Barbara R. - Mar 24, 2014

  • Mine is in my ginormous SUV and it's great. My husband has one in his Audi sedan - it fits, and it's okay, but it doesn't leave a ton of room. That said, I LOVE this car seat - it's one of the safest on the market and when it comes to safety products for my kids, function wins every time.

    Kristin H. - Mar 24, 2014

  • I have a VW golf so a compact car & have been VERY happy w/ this - we actually have more space issues w/ our 2nd rear facing car seat (for a baby). It's better if the passenger side front seat is not all the way back to give a little legroom for our toddler but it's fine.

    Margaret P. - Mar 24, 2014

  • We've had ours rear-facing in a Ford Focus for about a year. It works, but agree that the passenger side front seat is pretty far up to accommodate the space. We love the seat, though, as it's very easy to use and travels well.

    Michael C. - Mar 24, 2014

  • We have ours in a Prius. It is fine. Now with the Graco Snug Ride next to it there is no room for a third (normal sized) passenger.

    Sara L. - Mar 24, 2014

  • I actually ended up putting this in my husband's car and got a Diono for my compact car. We have a second on the way and I wanted more space in the back seat.

    Jennifer S. - Mar 24, 2014

  • This car seat won't do well in a compact car. I have a Kia Sorento and it takes up 1 1/4 seats. I have 2 for both of my kids and no one can ride with us. However, it's a great/durable seat.

    Monique S. - Mar 24, 2014

Login to Answer
  • Q: How easy is this to travel with? Can you quickly secure this into another car temporarily using the seatbelt instead of the latch system?

    asked by Secretly Expecting - Mar 23, 2014

  • This is very easy to use, if you're using the latch system or just a seatbelt securing it. My friend has the same exact one and often throws hers in my car when we go on trips, and she quickly just secures it with a seatbelt. It's not light and it's not small, so I wouldn't say it's easy to travel with, but I LOVE it and couldn't be happier with it.

    Kristin H. - Mar 24, 2014

Login to Answer
OTHER PRODUCTS WEELOVE

about us

weeSpring helps you share advice with your friends about the best baby bottles, softest swaddle blankets, most portable high chairs and everything else your family needs.

We also hand-pick the most innovative, game-changing products for parents, babies, and toddlers and deliver them to your email inbox with weeLove.
Sign Up >