Britax Roundabout 55 Isabella

The Britax Roundabout 55 is a convertible type of car seat. The seat is designed to be used in the rear facing position for a child weighing between 5 and 40 pounds. In the front facing position the seat can safely accommodate a child above 1 year weighing from 20 to 55 pounds and up to 46 inches in height.

4.7 out of 5 stars (4.7 / 5)

Unfortunately the Roundabout has now been discontinued so i have changed all the links in this post to take you information on the closest equivalent, the Britax Allegiance.

The seat incorporates Britax own SafeCellTM technology, which is comprised of cells built into the seat that compress in the event of an accident and thereby reduce the forces acting on your child to propel them forward from the seat. Steel bars also increase the ridgidity of the seat offering more protection and preventing it from flexing. An energy absorbing versa-tether attachment also serves to slow down forward movement of the seat by releasing in stages rather than all at once to act as a brake on forward motion.

The Britax Roundabout 55 also features Side Impact Protection which relies upon the rigid shell of the seat and deep padded side walls to work effectively. This provides protection for your child’s head and body by distributing crash forces away from your child during an accident.
The 5–point harness that the seat uses is a tangle-free type that prevents twisting during use.

This harness is fully adjustable so that you can get your child seated comfortably with the minimum amount of fuss.

The seat is certified as suitable for use during airline travel and comes from Britax with a 1 year limited warranty.

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There is an Infant Positioning Insert available for this model but this is only available by ordering separately and does not come included.

Britax USA, the manufacturer, offers a 1 year limited warranty and the Roundabout is also certified as suitable for use during airline travel.

The covers come in several attractive designs including, Gumdrop, Isabella and Silverlake and can be removed for cleaning by carefully following the manufacturer’s instructions.

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Specifications

Type: Convertible Seat

Used Rear Facing
Child Weight: 5 to 40 Pounds

Used Front Facing

Child Minimum Age: 1 Year
Child Weight: 22 to 55 Pounds

Maximum Height of Child:
46 Inches
Weight of Seat: 17.6 Pounds
Height: 26 Inches
Width: 18.5 Inches
Depth: 21 Inches

Features

  • Tangle-Free 5-Point Harness
  • Side Impact Protection using energy-absorbing EPP foam padding
  • Versa-Tether offering staged release during an accident to reduce the speed of forward movement
  • Steel bars used in construction.
  • Reclines in both the rear facing and forward facing positions
  • Uses lower LATCH connectors with easy release buttons
  • Meets or exceeds US Federal Standards

What Parents Liked about it

  • Sturdy construction
  • Lots of cushioning
  • Easy to install
  • Adjustable recline makes it easy to get your child comfortable and more settled for longer rides

What the Parents Didn’t Like..

  • Harness needs to be rethreaded when adjusted
  • Straps can get twisted
  • Covers can only be hand washed with cold water and mild detergent

Review Summary

Most parents who bought the Roundabout 55 really liked it. The main comments were that it is well-made, with a good amount of cushioning and is also easy to install.

A number of parents also said that the seat installs well in smaller cars taking up less space than several others they had tried.

There were a few negative comments such as the difficulties some parents had when adjusting the harness straps, as they need to be rethreaded each time. A few parents also said that they were having problems with the straps getting twisted.

We rated the Roundabout as a recommended buy because parents who bought it rated it so highly.  Be aware that if purchasing for a young infant weighing from 5-12 lbs you may need to factor in the extra cost of the Infant Positioning Insert supplied by Britax USA if you need it.

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 Alternative Choices

There are several other Britax models of Convertible seat that you might like to have a look at, for instance..

Our Advocate Review covers the flagship model offering the highest level of side impact protection with additional side impact cushion technology. Gives you the ratings on this advanced model including information on the construction of the seat.

We have also reviewed the Britax Marathon and the Boulevard 70-G3 and Pavilion 70-G3 here.