Britax Poplar S Convertible Car Seat
- Rear and forward facing, kid age range
- 65 Pounds weight capacity
- Seat belt installation
- 28 Pounds seat weight
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A seat listed for both rear and forward facing, installed with the vehicle seat belt. The listing gives no Latch option and no harness details.
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ASIN: B0DX8DSNBMModel: E1D231QCategory: Child Car Seats
Overview
A seat belt path is the working part of the Britax E1D231Q, which installs with the vehicle belt in either rear-facing or forward-facing orientation and has a polyester cover.
Support for both orientations lets one seat follow a child across stages, and the belt-only install works in vehicles without anchors. The limitation is missing detail on the harness, height range and the limits for each direction.
Who it's for
A household that plans to route the vehicle belt and wants to switch direction as the child grows fits the listing. Anyone who needs Latch, or a stated limit for each orientation, should look elsewhere.
Pros and cons
- Rear and forward facing use
- Seat belt installation
- High stated weight capacity
- Latch not listed
- Harness details missing
- Limits per direction unclear
- Age range is vague
Performance notes
Each orientation uses a different belt route, so the install has to be redone when the direction changes. A tight belt path and a correctly locked belt decide how well the seat holds in a sudden stop.
Specifications
| Brand | Britax |
|---|---|
| Model | E1D231Q |
| Dimensions & fit | |
| Weight Capacity | 65 Poundslower than 58% of 73 child car seats |
| Orientation | Rear and Forward Facing |
| Dimensions (D x W x H) | 20.5"D x 17"W x 23.5"H |
| Item weight | 28 Pounds |
| Capacity & performance | |
| Age Range | Kid |
| Construction & materials | |
| Material | Polyester |
| Compatibility & installation | |
| Installation | Seat Belt |
Closest rivals on specs
Chicco Fit360 SE ClearTex Rotating Convertible Car Seat- Item Weight 28 vs 31.3 pounds (-11%)
Frequently asked questions
How big is the Britax E1D231Q?
The listing gives 20.5"D x 17"W x 23.5"H and a seat weight of 28 Pounds.
Does the Britax E1D231Q install with Latch?
The listing names only the seat belt as the installation method.
Can the Britax E1D231Q face rear and forward?
Yes. The listing gives the orientation as rear and forward facing but no separate weight limits for each.