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Britax Marathon G4 Convertible Car Seat - Onyx

Item # HN-BRX248

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  • Integrated steel bars for added strength
  • Side-impact protection
  • Harness ultra-guard system
  • Energy-absorbing Versa-Tether
  • Weight capacity: 40 lbs. (rear facing), 65 lbs. (forward facing)
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REVIEW SNAPSHOT®

by PowerReviews
Britax Marathon G4 Convertible Car Seat - Onyx
 
4.6

(based on 112 reviews)

Ratings Distribution

  • 5 Stars

     

    (82)

  • 4 Stars

     

    (21)

  • 3 Stars

     

    (4)

  • 2 Stars

     

    (3)

  • 1 Stars

     

    (2)

94%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

Marathon CS

I was recently in a front-end car accident in which the car (2006 Honda Civic) was totaled. My son (4 years old, 44 lbs.) was front-facing in the Marathon CS and...Read complete review

I was recently in a front-end car accident in which the car (2006 Honda Civic) was totaled. My son (4 years old, 44 lbs.) was front-facing in the Marathon CS and sustained no injuries at all. He was up running around after the accident and complained of no pain in the days following. He only had minor seatbelt burn near his neck. It has been a week, and I am still in bed suffering from severe muscle spams and pain/whiplash. I am very pleased with this car seat and how it protected my son in the wreck. It is also very easy to install, easy to remove the covers to wash, fairly light weight. I highly recommend this seat. My son has used it since he outgrew the infant seat around age 1.

VS

Most Liked Negative Review

 

Overrated

We have been using for over a year. We also have an less expensive Safety 1st- the Safety 1st is so easy to use in comparison to the Britax Marathon - the strap...Read complete review

We have been using for over a year. We also have an less expensive Safety 1st- the Safety 1st is so easy to use in comparison to the Britax Marathon - the strap adjustments, and the seat just seems so uncomfortable.

Reviewed by 112 customers

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5.0

Great car seat!

By SPett

from Alexandria, VA, United States

Comments about Britax Marathon G4 Convertible Car Seat - Onyx:

I really like this seat. It was highly recommended and hasn't disappointed. I really like that the straps don't get in the way and is quick to buckle my child in. I like the added cup holder, though I wish one was built in. My child is small and has a hard time reaching for her cup.

 
5.0

Good buy.

By lsugirl

from Columbia, SC, United States

Comments about Britax Marathon G4 Convertible Car Seat - Onyx:

My son seems to be comfortable in the seat. The straps don't tangle easily. It was easy to install. It fits well in a 2010 Camry.

(1 of 1 customers found this review helpful)

 
5.0

Accident safety

By Jstez

from New Jersey, United States

Comments about Britax Marathon G4 Convertible Car Seat - Onyx:

We were in an accident today. We were hit from the rear and the driver was going about 30-40 mph. She didn't hit her breaks at all. My wife and I had very sore necks and backs. My daughter, however was in perfect condition still eating her snack. This car seat kept her safe and sound. It gives us total peace of mind knowing she is safe. We read another review about an accident and safety and now we are the review. Thank you for building such a safe car seat. Buy this car seat and have peace of mind that your child will be safe.

 
5.0

Perfect for any child, great for my daughter with low tone

By tigermama

from Virginia, United States

Comments about Britax Marathon G4 Convertible Car Seat - Onyx:

My youngest daughter has low tone. We moved her into her sister's Marathon. She loved it. We did not know how much she loved it until that marathon expired. We tried to save money since we had to buy two new carseats. We bought something different, something other reviewers said were as safe as the Britax. Well, the alternative was a beast to install and will be much worse when we can't use latch. My daughter hated the cheaper seat and whined throughout trips over 15 minutes long. We were very unhappy parents. We bought her a new Marathon. She loves it and it was a breeze to install. It gives her little body great support and comfort. When we can no longer use latch, the seat belt attachment will be a breeze.

 
5.0

I love BRITAX

By ksmama

from Colorado Springs, CO, United States

Comments about Britax Marathon G4 Convertible Car Seat - Onyx:

I love Britax, and will continue to use them. They are great, wonderful seats, and I will use this for my child, and any other children we have.

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