Britax Marathon G4 - Reviews, Prices, Specs and Alternatives

Britax Marathon G4

Compare Britax Marathon G4 with:

Graco Extend2Fit
Graco Extend2Fit
Safety 1st Grow and Go
Safety 1st Grow and Go
Evenflo SureRide
Evenflo SureRide
Other Convertible Car Seat
Review by Azanta Rezwana 0 0
Pros
  • Steel frame, shock-absorbent body
  • Crash tested
  • 3 recline positions
  • 12-position harness system
  • Rear- and front-facing mode
  • Built-in cup holder
Cons
  • Installation can be tricky at times
When you are serious about your child’s safety and comfort on the road, the Britax Marathon G5 is surely a great convertible car seat to invest in. With a steel frame and an energy-absorbing base, thi... Read full review
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Adjustable features
Harness Type What type of harness is used to secure the child
5-point
Adjustable Recline Can the seat’s recline angle be adjusted?
Yes
Padding or insert included Extra padding is required to have a newborn or small baby fit properly in a convertible car seat
No
Adjustment Features How the straps and buckles adjust to ensure that the child is secured
The no rethread harness makes it easy to adjust the strap height
Child Restrictions
Age Range
Newborn and up
Weight Range Minimum weight to maximum weight
5lb - 40lb
Height Range Minimum height to maximum height
49 inches
Rear facing weight limit How long can the child sit rear facing in this seat? (weight)
40 lbs
Rear facing height limit How long can the child sit rear facing? (height)
3.9 ft
Booster seat Can the convertible car seat be used as a booster seat?
Yes
Installation
How the seat is installed If the seat is clicked into a base, the seat can can be taken out of the car easily with the child still in it.
Clicked into a base (the base is not movable)
LATCH Connectors What LATCH system connectors does the seat use to be secured in the vehicle?
Easy-On / Easy-Off LATCH Connectors
Car Size What size vehicles does this seat work with?
  • Small (e.g. Toyota Prius)
  • Medium (e.g. Kia Optima)
  • Large (e.g. Dodge Charger)
  • SUV / Minivans
Premium Features
Detachable cover Does the car seat cover come off and on easily?
No
Machine washable cover Can the carseat cover be put in the washing machine?
No
Stroller system compatible Can this car seat be used with a compatible stroller system?
Yes
NHTSA Rating
NHTSA Evaluation of Securing the Child National Highway Traffic Safety Administration of the United States ranking from 1-5, 1 being the worst and 5 being the best
5
NHTSA Evaluation of Ease of Use National Highway Traffic Safety Administration of the United States ranking from 1-5, 1 being the worst and 5 being the best
4
NHTSA Evaluation of Installation National Highway Traffic Safety Administration of the United States ranking from 1-5, 1 being the worst and 5 being the best
1
NHTSA Evaluation of Labels National Highway Traffic Safety Administration of the United States ranking from 1-5, 1 being the worst and 5 being the best
5
NHTSA Evaluation of Instructions National Highway Traffic Safety Administration of the United States ranking from 1-5, 1 being the worst and 5 being the best
5
Physical Features
Weight of the seat

17 lbs
 
Dimensions
1.9 x 1.5 x 2 ft
General Info
Brand
Britax USA
Description
This model is suitable for kids from 5 to 40 pounds in a rear-facing position and from 20 to 65 pounds in a forward-facing position. It features deep side walls that are lined with energy-absorbing foam for better protection. The harness is tangle-free and adjusts to different height positions.
Popularity 0-100 scale indicating how frequently people buy the product online. Recalculated daily.
73 / 100
Release Date
1 Jun 2014
Warranty
1 year
Return Policy How long the trial period is and what the return policy is like
Britax Child Safety, Inc. will only accept returned child restraints that have been issued a "Return Authorization Number" from the Britax Child Safety Consumer Service Department.
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Key features
  • ClickTight Installation System
  • Steel frame
  • Energy-absorbing base
  • V-shaped tether
  • Staged-release stitches
  • Side impact protection formed by a deep foam-lined shell
  • Quick-adjust 12-position harness and 2-position buckle
  • 7-position recline with automatic level indicator adjusts

We don't have a summary for this product yet, but we're working on it.
Customer Reviews Reviews from real customers who bought the product on Amazon

Questions about Convertible Car Seats

There are 31 questions about Convertible Car Seats. Ask a question Show all

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We are looking for a different car seat for our 6 year old grandson he's 44 lbs and 45 inches very skinny . And tall we are unsure what to get .Where looking at Alpha Omega Elite car seat.
Related: Safety 1rst Alpha Omega Elite, Convertible Car Seats | Submitted by Angel 108 days ago

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I have a three year old, a 5 year old and a 7 year old. Which carseat would be best for all three?
Related: Diono RadianRXT, Britax Frontier G1.1, Convertible Car Seats | Submitted by Vanessa 218 days ago
A: Sitting three children in a back seat that are older

If you are sitting three across, the Radian Diono RXT seat would be best for all of them. It fits all stages. For your seven year old, you could buy the version that does not have the five point harness which is a tad cheaper. 

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What car seat is safest between the graco 4 ever and the Nautilus 65
Related: Graco 4ever, Graco Nautilus, Convertible Car Seats | Submitted by Athena 262 days ago

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-budget is $400 max.
-My one year old daughter will be using the seat. She is 28" tall and 19 lbs. now.
- We drive a Subaru Outback.
-We fly at least once a year on a cross country flight and will need to bring the carseat. I like the option for her to use it on the plane instead of checking it.
I am torn between the Diono Rainier/Radian or the Britax Marathon Click Tight.
Questions:
-Safety comparison.
-Is the side impact better for the Rainier? But then what did the Radian score better on the Insurance rating? That's confusing.
Thanks for your assistance. This decision is not easy!
Related: Diono RadianRXT, Britax Marathon ClickTight, Convertible Car Seats | Submitted by Katie 275 days ago
A: Britax Marathon vs. Radian Diono

If you are flying, the Radian is definitely the better choice. It folds up and can be put in the overhead compartment. This is also a great feature if you have people at work ride with you at lunch or something and need the space in your vehicle. The Britax Marathon is a great seat, but very large. It would be a bear to travel with. I like both seats, but it depends on why and where you are using it. Do you have a small car? Do you have another car seat in the vehicle? Are you having another child? If you want a really safe seat that is both portable and comfortable and narrow, then choose the Radian. If you want a huge seat that is easy to put into the car, safe, etc but takes up half of the backseat, choose the Britax. They are both safe. I am buying the Radian for my car and the Britax for my Durango.

I hope this helps.

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I am having a hard time deciding between these two. My daughter hates the car seat and I am hoping once we transition, it will get better. They both have a lot of nice features but I'm wondering if anyone has had experience with both. Does your child prefer one over the other? Do you feel one is easier/safer than the other? Thank you
Related: Chicco Nextfit Zip, Graco 4Ever Extend2Fit, Convertible Car Seats | Submitted by Lakyn 287 days ago

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