or
Sign in to turn on 1-Click ordering.
or
Amazon Prime Free Trial required. Sign up when you check out. Learn More
Add Accessories
More Buying Choices
HCcost Add to Cart
$159.95  & this item ships for FREE with Super Saver Shipping and Free Returns. Details
Quidsi Retail LLC (Diapers.com) Add to Cart
$159.99 + Free Shipping
J&R Music and Computer World Add to Cart
$159.99 + $11.13 shipping
Have one to sell? Sell yours here
Britax Roundabout 55 Convertible Car Seat (Current Version)

by Britax USA
4.6 out of 5 stars  See all reviews (45 customer reviews)

List Price: $199.99
Price: $159.99 Free Super Saving Shipping & Free Returns Details
You Save: $40.00 (20%)
  Special Offers Available
o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o

Select

Color
error!
 
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
Want it delivered Tuesday, May 22? Choose One-Day Shipping at checkout. Details

Is this a gift? This item ships in its own packaging. To keep the contents concealed, select This will be a gift during checkout.

Get a Free Car Seat from Britax

Britax Registry Rewards
This item is eligible for Britax Registry Rewards. Learn how to qualify for a free car seat and see full details.

Special Shipping Information: This item ships separately from other items in your order.

Special Offers and Product Promotions

Color: Onyx
  • Eligible for Free 365-Day Returns on Baby items fulfilled by Amazon.com in the Amazon Baby Store. Here's how (restrictions apply)

Frequently Bought Together

Britax Roundabout 55 Convertible Car Seat, Onyx + Britax Child Cup Holder + Britax Marathon 70 Convertible Car Seat, Onyx
Price For All Three: $378.76

Show availability and shipping details

Buy the selected items together
  • In Stock.
    Ships from and sold by Amazon.com.
    This item ships for FREE with Super Saver Shipping and free returns. Details

  • Britax Child Cup Holder $11.79

    In Stock.
    Ships from and sold by Amazon.com.
    Eligible for FREE Super Saver Shipping and free returns on orders over $25. Details

  • Britax Marathon 70 Convertible Car Seat, Onyx $206.98

    In Stock.
    Ships from and sold by Amazon.com.
    This item ships for FREE with Super Saver Shipping and free returns. Details



Product Features

Color: Onyx
  • Safecell technology features safecells designed to compress in a crash, significantly lowering the center of gravity and counteracting the forward rotation of the child seat which normally propels the child toward the front seat
  • Integrated steel bars strengthen the connection to the vehicle and reduce forward flexing of the child seat during a crash
  • Energy-absorbing versa-tether features a staged-release tether webbing to slow the forward movement, reducing the crash forces reaching the child, and a two-point attachment to minimize forward rotation while anchoring the top of the child seat
  • Side Impact Protection comprised of deep side walls lined with energy-absorbing EPP foam distributes crash forces, shields from vehicle intrusion, and contains the head, neck and body
  • Tangle-Free, Five-Point Harness distributes crash forces across the strongest parts of the body and provides a secure fit

Product Specifications
Product Information
Model numberE9BC71A
Minimum weight recommendation5 Pounds
Maximum weight recommendation55 Pounds
Additional product featuresAdjustable Head Support
Number of items1

Product Details

  • Product Dimensions: 21 x 18.5 x 26 inches ; 17 pounds
  • Shipping Weight: 20.8 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • Origin: USA
  • ASIN: B005UBCHE6
  • UPC: 652182070816
  • Item model number: E9BC71A
  • Amazon Best Sellers Rank: #347 in Baby (See Top 100 in Baby)
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (45 customer reviews)
  •  Would you like to give feedback on images?


Product Description

Color: Onyx

Amazon.com Product Description

The BRITAX ROUNDABOUT 55 Convertible Car Seat achieves optimum head safety through the combination of BRITAX SafeCell Technology, integrated steel bars, and a Versa-Tether, which work together to minimize head excursion and reduce the risk of head injury during a frontal impact. The seat fits children in the rear-facing position weighing from 5 to 40 pounds, and children in the forward-facing position starting at one year old and 20 pounds, up to 55 pounds.

callout box top

ROUNDABOUT 55
Convertible Car Seat
(Isabella)

At a Glance:
  • Age/Weight Requirements: In rear-
    facing position, fits children weighing 5 - 40 pounds; in forward-facing position, fits children 1+ years old weighing 20 - 55 pounds

  • Warranty: 1-year
    limited warranty

callout box bottom
Britax Roundabout 55 Convertible Car Seat
Available in (from left to right):
Onyx, Davenport,
Smokey Pearl, and Isabella.
Britax Roundabout 55 Convertible Car Seat
Safety features include SafeCell Technology and True Side Impact Protection.
View larger
.
Britax Roundabout 55 Convertible Car Seat
Comfort features include dual recline positions and high-density comfort foam.
(Shown here in Davenport.) View larger.
BRITAX 360 Degree Protection
The BRITAX ROUNDABOUT 55 features technologies that work to minimize injury to your child during a crash from any direction, including both frontal and side impact crashes - the most frequent types of crashes. These technologies work together with other features on the car seat to minimize injury to your child during a crash by:

  • keeping your child in the vehicle,
  • diverting crash forces away from your child,
  • helping to slow down your child's body,
  • minimizing movement of your child, and
  • protecting your child's brain and spinal cord.
SafeCell Technology for Advanced Head Safety
Designed with SafeCell Technology, the ROUNDABOUT 55 features SafeCells, which are engineered structures located in the base of the seat designed to compress in the event of a crash. This compression significantly lowers the center of gravity and counteracts the forward rotation of the car seat, delivering unprecedented performance in a crash.

The ROUNDABOUT 55 also features integrated steel bars, which strengthen the connection to the vehicle and reduce the forward flexing of the car seat. In addition, the energy-absorbing Versa-Tether anchors the top of the car seat and minimizes forward rotation to reduce the crash forces that can reach your child if an accident occurs. These three features work together as a system to provide revolutionary head safety protection for your child.

Side Impact Protection for Added Security
To keep your child safe in the event of a side-impact collision, the ROUNDABOUT 55 includes Side Impact Protection. Side Impact Protection is a system composed of a rigid seat shell with deep side walls and energy-absorbing EPP (Expanded Polypropylene) foam lining the shell. These combined features work together to protect your child's head and chest from incoming side-impact crash forces by distributing the forces over a larger surface area, helping shield your child from vehicle intrusion and contain your child's head and body in the seat.

Premium Fit and Comfort Features
Whether children are watching the world go by or snuggling in for a nap, they'll enjoy that the ROUNDABOUT 55 reclines in both the forward and rear positions. And thanks to additional features, which include high-density comfort foam and a plush cover set with a matching belly pad, they'll always ride in style and comfort. A 55-pound weight capacity, two buckle positions, and a tangle-free five-point harness with four harness-height settings ensure that your growing child will ride safely and comfortably. Plus, an optional Infant Positioning Insert (sold separately) allows you to properly and snugly fit smaller infants into the car seat.

Ease-of-Use for Safety and Convenience
Packed with perks for parents, the ROUNDABOUT 55 makes it easy to secure your child in the proper position without guesswork. Premium lower LATCH connectors make for a quick, simple, and tight installation, while the push-button allows you to easily uninstall the connectors. Easy-to-access built-in lock-offs allow you to install the car seat with ease using your vehicle's lap and shoulder belt.

Additionally, an anti-slip contoured base grips and protects the vehicle seat, ensuring a tight installation in all types of vehicles. Convenient holders keep harness straps out of the way when you're placing your child in the seat.

The BRITAX ROUNDABOUT 55 Convertible Car Seat is backed by a one-year limited warranty.

What's in the Box
One BRITAX ROUNDABOUT 55 Convertible Car Seat and manual.


Product Description

The Britax Roundabout 55 convertible car seat is designed for children rear facing from 5 to 40 pounds and forward facing from 1 year and 20 lbs up to 55 pounds. The Roundabout 55 achieves revolutionary head safety through the use of Britax SafeCell Technology, integrated steel bars, and versa-tether that work together to minimize head excursion and reduce the risk of head injury during a frontal impact. The Roundabout 55 also incorporates Britax side impact protection, offers a five-point harness, and multiple buckle and recline adjustments. A body pillow is provided for comfort.


Tags Customers Associate with This Product

 (What's this?)
Click on a tag to find related items, discussions, and people.
 
(2)

Your tags: Add your first tag
 

Customer Reviews

Most Helpful Customer Reviews
55 of 58 people found the following review helpful
A Great, Safe Carseat November 25, 2011
Color Name:Davenport
We have had this carseat for a year now and are about to purchase a second one for our son. We put our daughter in it when she was almost 1 yo. I chose this because at the time I was driving a Honda Civic and it fit wonderfully (Rear facing and forward facing. We started her rear facing with the carseat reclined. Once she was 1 year and 20 lbs we turned her around.) Now we have a minivan but I still prefer this one to the larger/bulkier Marathon and Boulevard. A good friend has the later and now that her sons are older she is switching to a booster anyway. Here are the high points for me:

1) Easy to install! Some carseats take a rocket scientist to install but this one is fairly simply. We use the Latch option. One trick that helped me when I was installing it in our Civic was to snap side that is closest to the center of the car first, with the carseat turned in toward the center of the car. Then I turned the carseat to face forward and snapped in the other side. Then stuck my knee in the seat and used my body weight to press it down while tightening both sides. I'm tall and if I can get it into a Civic while being 6 months pregnant I think almost anyone can do this. It just takes a couple of minutes. Our minivan is much easier to get it into, because it has the latches exposed. My Honda had the latches hidden down between the seat with a small button to indicate where the latch bar was so it was kind of a guessing game, but that was really the car's fault, not the carseat.

2) Safety, safety, safety! (Which perhaps I should have mentioned first) I think it's pretty much accepted that Britax puts out great, quality products which have superior safety ratings. Like another reviewer said, check out their site for the rigorous safety testing they do.

3) Comfortable and good looking. Even if my car was parked in the sun, the fabric on this would not be that hot. The buckles do get hot, but the fabric is very nice and gentle on kids' bare legs/arms. (The crotch guard will keep the buckle from touching them.) Also I love the color which is gray but has some shimmer. Washes well and is durable. We've had it over a year and it still looks brand new with no staining or fading.

My bottom line is that this is a great carseat! My sister and close friends all have the Boulevard and I just don't see the point, unless you are planning on keeping your kid in it until they are 15 years old. :)
Was this review helpful to you?
20 of 21 people found the following review helpful
Color Name:Onyx
We got this Roundabout because my son outgrew his infant car seat. We have a Britax Marathon for my older daughter and I am completely impressed with it. I thought the only difference between the Roundabout and the Marathon was going to be the difference in weight limits. Boy was I wrong. The quality is not what I'd expect from Britax. It's hard to recline, all of that is a cheap plastic too, not like the hard plastic the Marathon has. Even the shoulder pads on the straps are cheaper, they velcro around the straps and fall off all the time. I'm just not impressed. Spend the extra $50 or so and get the Marathon, it's worth it.
Was this review helpful to you?
14 of 14 people found the following review helpful
First Time Mom December 20, 2011
By Sarina
Color Name:Davenport|Amazon Verified Purchase
We have had the car seat for about 2 months now and I very happy with same. It is sturdy and very comfortable because of the cushioning (some of the other car seats we were looking at were very firm).

What we love most is the size of same. We have a smaller car (mazda 3) and it fits perfectly. Not too bulky and easy toget our son in and out. We are still able to have 2 other passengers in the back seat.
Was this review helpful to you?
Most Recent Customer Reviews
Excellent Car Seat
This is a really nice car seat. Installation is easy. Rethreading the straps takes a few minutes but it is pretty straightforward. Read more
Published 14 days ago by Anna
Great carseat
We recently purchased our 3rd and 4th Britax roundabout. The seat is very easy to install and adjust. Our son and daughter love them!
Published 15 days ago by bethbrace
Really comfortable seat
We bought this seat for my 15 months old daughter who is never happy to sit in the car seat and get buckled. Read more
Published 15 days ago by A&B
very pleased
Came assembled and was so easy to put in the car. Just had to do some adjusting on the straps but otherwise love the car seat. My favortie feature are the locks on each side. Read more
Published 16 days ago by motherof2
Great car seat
I am very satisfied with this car seat. We have a Marathon car seat in my car and needed a second seat for my husband's car. Read more
Published 24 days ago by JB Zimmerman
As health professionals recommend rear facing for at least 2 years,...
Searching around the web, Britax car seats come out uniformly as very safe. That should be your first concern with a car seat. Read more
Published 27 days ago by austin_Larry
Nice product
This one good purchase I did for my new born... I did quite some research online and on stores both and landed on decision to buy from Amazon and britax this one. Read more
Published 27 days ago by Abhay Mishra
Great for the price
Good basic seat for the $$$. Harness has a tendency to twist.

We also have the Boulevard 70 that has the HUGS feature...that is great and prevents the twisting. Read more
Published 29 days ago by K in San Diego
Good seat, could be better.
We purchased this seat because our little one was getting too heavy for me to carry in her infant car seat. Read more
Published 1 month ago by Rebecca R.
Safe, Simple, and Clean Looking
My wife and I really like this car seat. It seems comfortable, while providing good side to side protection. Most importantly, the harness/ latching system is simple to use. Read more
Published 1 month ago by motorsport_mike
Search Customer Reviews
Only search this product's reviews

Customer Discussions

This product's forum
Discussion Replies Latest Post
Britax Roundabout 55 no go on United Airlines 0 Mar 8, 2012
See all discussions...  
Start a new discussion
Topic:
First post:
Prompts for sign-in
 


Active discussions in related forums
Search Customer Discussions
   
Related forums


So You'd Like to...


Create a guide


Look for Similar Items by Category

Color: Onyx