Britax Poplar Convertible Car Seat | live price, prepared checkout
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Sold and shipped by anbbaby.com, anbbaby.com; payment happens on the store's own checkout.
Brand: Britax
- Stone Onyx: USD 349.99; out of stock. Variant id
gid://shopify/ProductVariant/47222321021214- Seller: anbbaby.com. Price: USD 349.99. Stock: out of stock. Variant: Stone Onyx, variant id
gid://shopify/ProductVariant/47222321021214. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. Public evidence. Comparison page. Get ready to buy from anbbaby.com: prepare checkout.
- Seller: anbbaby.com. Price: USD 349.99. Stock: out of stock. Variant: Stone Onyx, variant id
Checked facts
Each fact below was checked against the source it cites before it was published. Each carries that source's link and the time RoboTrunk read it. 41 checked facts, checked 2026-09-24T12:44:31.805Z. Research depth: trimmed read. Deep read: the store's own data and 8 outside pages (the store's own product page; maker page; manual; review; regulator recall search (CPSC (United States)); regulator recall search (Health Canada); regulator recall search (ACCC Product Safety Australia)), each read in full by RoboTrunk and trimmed to its main content, then written up and checked. Facts from the maker or a manual quote the page word for word; what real users report is summarised with a link to the page read. Recall status was checked directly with CPSC (United States), Health Canada, ACCC Product Safety Australia: The supplied CPSC search returned no Britax Poplar recall records, and the ACCC's 100 most recent recalls contained no Britax or Poplar entry. The Health Canada dataset listed several generic or other-model Britax recalls, including 2026 and 2024 child-seat notices, but the supplied text does not identify Poplar as affected; those generic notices cannot conclusively establish applicability without their model details.
- Installation mechanism: The belt paths are open, labelled and accessible, and an automatic tensioner performs the tightening.. Source: https://anb-baby.myshopify.com/products/britax-poplar-convertible-car-seat (guide), read 2026-09-24T12:39:01.313Z.
- Use modes: The Poplar converts from a rear-facing infant/toddler seat to a forward-facing seat.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Seat weight: The Poplar weighs 27.2 lb (12.34 kg).. Source: https://us.britax.com/support/faq/convertible-car-seats (guide), read 2026-09-24T12:39:09.434Z.
- Version differences: The reviewed seat predates the 2025 FMVSS update; the review says current seats add side-impact protection and have revised minimum rear- and forward-facing limits, so older review-seat specifications should not be assumed for a newly purchased seat.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Exact variant: The Stone Onyx variant is identified by SKU E1C933M and UPC 652182743055.. Source: https://anb-baby.myshopify.com/products/britax-poplar-convertible-car-seat (guide), read 2026-09-24T12:39:01.313Z.
- Rear-facing limit: Rear-facing capacity is up to 50 lb and 49 inches.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Width: The seat is 17 inches (43.18 cm) wide.. Source: https://us.britax.com/support/faq/convertible-car-seats (guide), read 2026-09-24T12:39:09.434Z.
- Real vehicle fit: Across numerous vehicles, rear-facing installation generally worked well, but forward-facing installation repeatedly required removal of the vehicle head restraint to avoid interference.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Forward-facing limit: Forward-facing capacity is up to 65 lb.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Reclined length: It is approximately 28.5 inches (72.39 cm) long when reclined on a flat surface; vehicle geometry can change the installed measurement.. Source: https://us.britax.com/support/faq/convertible-car-seats (guide), read 2026-09-24T12:39:09.434Z.
- Three-across fit: Three-across worked best on full-size outboard positions beside other narrow seats or low-profile boosters. The seat failed to fit a very small Sienna centre position and had questionable side overhang in an Odyssey centre position.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Three-across fit: The seat is designed to fit three across.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Base fit: The black base runners must rest entirely flat on the vehicle seat, although portions beyond their outside edges may overhang the vehicle seat edge.. Source: https://us.britax.com/support/faq/convertible-car-seats (guide), read 2026-09-24T12:39:09.434Z.
- Compactness: The seat was exceptionally compact front-to-back at its most upright rear-facing setting, making it promising for smaller back seats.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Fit caveat: Britax does not guarantee three-across fit in all vehicles.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Front overhang: Up to 3 inches (7.5 cm) of the base may extend beyond the front of the vehicle seat in either mode.. Source: https://us.britax.com/support/faq/convertible-car-seats (guide), read 2026-09-24T12:39:09.434Z.
- Installation effort: The labelled ClickTight paths made installation straightforward, although the panel required more closing force than expected; pressing firmly over the release-button area helped.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Installation: ClickTight installation uses three basic steps: open the panel, route and buckle the belt, then close the panel.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Recline aid: For rear-facing installation only, a rolled towel or pool noodle may be used when the proper recline cannot otherwise be achieved.. Source: https://us.britax.com/support/faq/convertible-car-seats (guide), read 2026-09-24T12:39:09.434Z.
- Newborn recline: Achieving an appropriate newborn recline required the fullest seat recline plus a rolled towel under the front of the base during testing.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Recline: The seat has six quick-adjust recline positions for child comfort and vehicle fit.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Infant insert: The lower infant insert is mandatory rear-facing at 22 lb or less and prohibited above 22 lb or forward-facing.. Source: https://us.britax.com/support/faq/convertible-car-seats (guide), read 2026-09-24T12:39:09.434Z.
- Harness pads: The large permanently attached harness pads were awkward to store correctly when not in use.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Harness adjustment: The headrest and no-rethread harness adjust together through 14 positions with one hand.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Harness pads: Harness pads must stay attached and are required rear-facing from 22–50 lb and forward-facing from 22–65 lb, subject to a lap-belt-only exception.. Source: https://us.britax.com/support/faq/convertible-car-seats (guide), read 2026-09-24T12:39:09.434Z.
- Child comfort: A 35 lb, 38-inch child appeared comfortable and slept easily rear-facing, but the compact shell provides limited extra legroom.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Frame and protection: The seat has a high-strength steel frame, SafeCell technology, a V-shaped top tether and two energy-management layers.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Buckle fit: Use the buckle slot nearest the child that is not underneath them.. Source: https://us.britax.com/support/faq/convertible-car-seats (guide), read 2026-09-24T12:39:09.434Z.
- Child fit limitations: The required inch of headrest above a rear-facing child's head may limit children with long torsos or larger heads before the nominal height limit.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Tether warning: Britax strongly recommends using the top tether for every forward-facing installation.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Cup-holder warning: Either the cup holders or the included cup-holder caps must be fitted during travel.. Source: https://us.britax.com/support/faq/convertible-car-seats (guide), read 2026-09-24T12:39:09.434Z.
- Infant insert thickness: The required infant insert appeared bulky and thick; the evaluation anticipated a snug fit as infants approach its weight limit.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Fabric and chemicals: The fabric is naturally flame-retardant and has no added flame-retardant chemicals.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Manual issue: The supplied manual had confusing recline wording that Britax confirmed and removed from the online manual; buyers should confirm they have the latest revision.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Cover care: The SafeWash cover can be machine washed and machine dried.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Aircraft use: The reviewed seat carried an FAA approval label and could be installed rear- or forward-facing on aircraft, with different belt routing for each direction.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Cup-holder care: The removable cup holders are dishwasher safe.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Measured weight discrepancy: The review measured its older seat at 26 lb, while Britax's current FAQ states 27.2 lb; the maker's current figure is preferred for the current product.. Source: https://csftl.org/britax-poplar-convertible-car-seat-review/ (review), read 2026-09-24T12:39:12.494Z.
- Included insert: An infant insert is included for newborn fit.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Service life: The seat expires after 10 years.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
- Warranty: Britax provides a one-year limited manufacturer warranty.. Source: https://us.britax.com/shop/car-seats/poplar-convertible-car-seat (guide), read 2026-09-24T12:39:04.851Z.
The full evidence pack, with every citation, source and gap.
Questions we researched but could not confirm
Every fact above is cited. To find them we read the store listing, the maker's page, the manual, owner reviews and the recall records of CPSC (United States), Health Canada and ACCC Product Safety Australia. We also chased the questions below across those sources and found no reliable answer, so you know exactly where the evidence ends and never have to guess.
- What do the cover fabric and padding feel like to the touch?
- How thick is the main seat padding?
- What are the seat's total upright height and depth?
- What are the current model's exact minimum rear-facing limits?
- What are the current model's exact forward-facing height, weight and age limits?
- Which formal safety standards and certifications does the current Stone Onyx model carry?
- Is the current model certified for aircraft use?
- What tools, if any, are required for installation?
- Which vehicles and seating positions have Britax verified as compatible?
- Does the shell rub or mark vehicle upholstery during long-term use?
- Do any printed, painted or coated surfaces wear off with use or cleaning?
- Which components most often fail or wear out over years of use?
- Exactly what parts and accessories are included in the box?
- What damage and defects does the one-year warranty cover?
- What are the cover's exact wash and drying settings?
To buy this through RoboTrunk, pass merchant anbbaby-com, product_id gid://shopify/Product/8833528234270 and one variant_id from the list above.
Product image of Britax Poplar Convertible Car Seat, supplied by anbbaby.com: https://cdn.shopify.com/s/files/1/0030/3949/4244/files/britax-poplar-convertible-car-seatbrie1c933manb-babyanb-baby-529439.jpg?v=1762464792
Retrieved 2026-10-20T19:35:42.521Z from https://anb-baby.myshopify.com/products.json
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