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Britax Roundabout 55 Convertible Car Seat - Onyx

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  • $199.99
  • $89.98
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  • Gift wrap is not available for this item.

  • Product is not available for shipping internationally. (Details)

Special Offers

Only $19.99 Britax 3-in-1 Car Seat Accessory Kit when you buy a select Britax Convertible or Harness-2-Booster Car Seat - (Details)
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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.
This and all items from Britax are excluded from all promotions and discounts except where otherwise noted on product detail pages.

Features

  • 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 Cushion Technology features energy-absorbing cushions on the exterior of the child seat to reduce side impact crash energy by 45% by diverting crash forces away from your child and providing extra protection for the adjacent passenger
  • Click & Safe Snug Harness Indicator is an audible aid that provides extra assurance when the harness is within range of appropriate snugness

Additional Info

650784

7A27C83E

652182070816

E9BC71A

21 x 18.5 x 26

5 lbs

55 lbs

Convertible

5 Point Harness,Front Adjusters,Latch,Washable Fabric

Yes

Convertible

20.7 pounds

29.1 x 19.7 x 19.0

How to Get It


  • This item can be shipped to the entire United States including Alaska, Hawaii, and all U.S. territories including Puerto Rico
  • This item can also be shipped to APO/FPO addresses and to P.O. Boxes in all 50 states
  • Due to shipping restrictions, Ship Charges will be separate from other items in your order
  • This item will ship by itself


  • This item may be shipped via Standard Shipping, Expedited Shipping or Express Shipping
  • Please Note: Some addresses are eligible for Standard Shipping only (APO/FPO, P.O. Boxes, U.S. Territories and Puerto Rico)

(learn more):

  • This item is sold online only (not sold in stores)
  • Orders placed for Store Pickup will receive online pricing and promotions
  • In-stock status is approximate and may not reflect recent sales
  • Not all items are carried at all stores. Please click the "Select a store" link to check product availability

Customer Reviews Summary & Ask a question

Average Customer Rating:

by PowerReviews
Britax Roundabout 55 Convertible Car Seat - Onyx
 
4.6

(based on 16 reviews)

Ratings Distribution

  • 5 Stars

     

    (12)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

94%

of respondents would recommend this to a friend.

Pros

  • Safe (14)
  • Easy to install (13)
  • Durable (12)
  • Comfortable (9)
  • Easy to adjust (9)

Cons

  • Heavy (4)

Best Uses

  • Infants (11)
  • Toddler (11)
    • Reviewer Profile:
    • First time parent (13)

Reviewed by 16 customers

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Displaying reviews 1-10

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(1 of 1 customers found this review helpful)

 
5.0

He Likes It!

By A New Britax Fan

from Florida

About Me First Time Parent

Verified Buyer

Pros

  • Comfortable
  • Easy to Adjust
  • Easy to Clean
  • Easy to install
  • Safe
  • Sturdy
  • Stylish

Cons

    Best Uses

    • Toddlers

    Comments about Britax Roundabout 55 Convertible Car Seat - Onyx:

    We did so much research on car seats and had originally selected another leading brand. Our 16 month old hated that seat with a passion, and we had a challenge getting him into it. I'd heard many great things about Britax and (though it looked the same as the other one we had to me) it made a huge difference to him. We have had no complaints at all from the back seat. :) The seat cover is so soft, I just wish it had a cup holder.

    Comment on this review

    (1 of 1 customers found this review helpful)

     
    5.0

    Happy with this car seat

    By Mommaofone

    from Plainfield, IL

    About Me First Time Parent

    Pros

    • Comfortable
    • Easy to install
    • Lightweight
    • Safe
    • Sturdy
    • Stylish

    Cons

    • Difficult To Adjust

    Best Uses

    • Infants
    • Toddlers

    Comments about Britax Roundabout 55 Convertible Car Seat - Onyx:

    We got this for our son once he outgrew his carrier. I did a lot of research before buying a car seat and we knew that we wanted to go with a Britax due to all the extra safety features and testing done in Europe. We bought this one after seeing reading reviews and it was in our budget. We are very happy with it. I think it's very comfortable and easy to use and install. My only complaints about it is that you have to take apart all the straps to adjust the harness strap height. Its kind of a pain, especially if you have larger fingers/hands. Also, the attachable cup holder could be a little more sturdy. My 22 month old just figured out that he can pull it off. Otherwise it's a great seat.

    Comment on this review

    (1 of 1 customers found this review helpful)

     
    5.0

    Great seat

    By FL Girl

    from Orlando, FL

    About Me First Time Parent

    Verified Buyer

    Pros

      Cons

        Best Uses

          Comments about Britax Roundabout 55 Convertible Car Seat - Onyx:

          We had a Britax Roundabout as a hand-me-down from my sister, and we decided to get another one for our second car. The new and improved version, the Roundabout 55 is really nice. It was installed easily, and our son appears to be very comfortable in his new seat. I did a lot of research prior to buying a car seat, and I have found Britax to have the best safety reputation. That was enough for me. Glad I was able to get it during the 20% off sale, too.

          Comment on this review

          (2 of 2 customers found this review helpful)

           
          5.0

          Perfect seat for us!

          By Mom of a Marchie

          from Pensacola, Fl

          About Me First Time Parent

          Pros

          • Comfortable
          • Easy to Adjust
          • Easy to install
          • Lightweight
          • Safe
          • Sturdy
          • Stylish

          Cons

            Best Uses

            • Infants
            • Toddlers

            Comments about Britax Roundabout 55 Convertible Car Seat - Onyx:

            I absolutely love this seat! It will allow us to rear face our daughter to at least two years! It fits being the driver and passenger seat of my compact car without even touching the front seats. It's super comfortable for my daughter and I love the look of the Onyx fabric! It provides all the safety and conveniences of having a Britax while still being reasonably priced and it is smaller than the other Britax seats I've seen. I would buy this seat over again in a heartbeat!

            Comment on this review

            (3 of 3 customers found this review helpful)

             
            5.0

            Great Car Seat

            By mommab89

            from pennsylvania

            About Me First Time Parent

            Pros

            • Comfortable
            • Easy to Adjust
            • Easy to Clean
            • Easy to install
            • Safe
            • Sturdy

            Cons

            • Heavy

            Best Uses

            • Infants
            • Toddlers

            Comments about Britax Roundabout 55 Convertible Car Seat - Onyx:

            We bought a Boulevard my car and loved it but didn't want to spend the money a second time on another one for my husbands car so opted for the Roundabout 55. It's wonderful. It fits perfectly RF (even at 45 degree recline)in both our 08 Chevy Trailblazer and our 10 Subaru Outback. It's amazing how little room these giant car seats actually take up. It's very nice, easy to adjust the straps, a breeze to install and our son seems very happy in it. You can find install videos from Britax on youtube if you need them, they were a help to us!

            Comment on this review

            (1 of 1 customers found this review helpful)

             
            4.0

            easy enough for me, seems comfy for baby

            By holly wolly

            from frenchtown, nj

            About Me First Time Parent

            Pros

            • Comfortable
            • Easy to Adjust
            • Easy to install
            • Safe
            • Sturdy

            Cons

            • Heavy

            Best Uses

            • Infants
            • Toddlers

            Comments about Britax Roundabout 55 Convertible Car Seat - Onyx:

            I got this for our 10 month old when we realized he had outgrown his infant seat. We drive a 2011 Honda CRV. We're happy that we can put this seat, rear-facing, behind either of us when we're driving (my husband is 6'2" so this was a problem in our old '96 Accord with the infant seat we had). It is a little tricky maneuvering the baby into the seat over the curved side of this carseat, but not enough to really bother me. It's easy enough to adjust the straps if he's wearing a lot of bulky winter clothes, and compared to other snaps I deal with, so easy to snap him in.
            I feel like my baby's very safe and he seems comfy - he sleeps in his seat all the time. At first his head fell to the side when he slept so I used a neck pillow. But now he's 13 months and that's not usually a probably anymore.

            Comment on this review

            (2 of 2 customers found this review helpful)

             
            5.0

            Britax makes a great car seat!!!!!

            By mom

            from Dallas, TX

            About Me First Time Parent

            Pros

            • Easy to Adjust
            • Easy to Clean
            • Easy to install
            • Safe
            • Sturdy
            • Stylish

            Cons

              Best Uses

              • Toddlers

              Comments about Britax Roundabout 55 Convertible Car Seat - Onyx:

              I will only buy a britex car seat. I have had this one for over a year and love it. It is high quality and easy to get in and out with the latch system. Easy to clean and still looks new. The recline is much better then the Graco, and perfect for the younger months.

              Comment on this review

               
              5.0

              gre8at seat

              By jessica single mom

              from cumming ga

              About Me First Time Parent

              Verified Buyer

              Pros

              • Easy to install
              • Safe
              • Stylish

              Cons

                Best Uses

                • Infants

                Comments about Britax Roundabout 55 Convertible Car Seat - Onyx:

                i love this seat my son seems to really like it much better then the infant seat he screamed evertime we got in the car until i installed this seat. it fits rather well in my small care i have a mazda2 and the passenger seat isnt straight up like the old car seat much better all around i would def buy it again seems super safe aswall

                Comment on this review

                (0 of 1 customers found this review helpful)

                 
                5.0

                Awesome purchase!

                By Gigi

                from NJ

                About Me First Time Parent

                Verified Buyer

                Pros

                • Comfortable
                • Easy to Adjust
                • Easy to Clean
                • Easy to install
                • Lightweight
                • Safe
                • Sturdy
                • Stylish

                Cons

                  Best Uses

                  • Infants
                  • Toddlers

                  Comments about Britax Roundabout 55 Convertible Car Seat - Onyx:

                  We are so happy that we decided on this seat for our 9 MT old. He has grown as his infant car seat & it was time to upgrade to a chair for a bigger child. It was easy to install and the baby fit comfortably in safely in the chair. It is made very well and looks great. Love it!

                  Comment on this review

                  (1 of 1 customers found this review helpful)

                   
                  4.0

                  Britax Roundabout 55 Convertible Car Sea

                  By Nana

                  from Simpsonville, SC

                  About Me Grandparent

                  Verified Buyer

                  Pros

                  • Comfortable
                  • Easy to Adjust
                  • Safe
                  • Sturdy
                  • Stylish

                  Cons

                  • Heavy

                  Best Uses

                  • Infants
                  • Toddlers

                  Comments about Britax Roundabout 55 Convertible Car Seat - Onyx:

                  My daughter purchased one and so did we and love it! No longer have to switch out car seats and my granddaughter loves it!

                  Comment on this review

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