{
  "schema_version": "compare-page.v2",
  "page_id": "convertible-car-seat-widths-and-dimensions-with-no-headrest",
  "url": "https://robotrunk.com/compare/want/convertible-car-seat-widths-and-dimensions-with-no-headrest",
  "title": "Convertible car seat widths and dimensions, with no headrest-fit data",
  "question": "Which convertible car seats fit well against a vehicle headrest?",
  "answer": "The checked facts do not state how any of these seats fits against a vehicle headrest. The closest size facts, ordered by width, are: Clek Fllo: Under 17 inches wide, so it can be installed three-across in most vehicles. Britax Poplar S ClickTight Convertible Car Seat: The Poplar and Poplar S are described as among the skinniest car seats on the market, at 17 inches wide externally. Britax One4Life Slim ClickTight All-in-One: The seat is 17.5 inches wide, which the listing says lets you fit three across in most vehicles. Cybex Callisto T 360: Assembled measurements are 21.7 in long, 19.5 in wide, and 25.5 in high.",
  "kind": "convertible car seats-dc",
  "market": "US",
  "generated_at": "2026-10-31T07:30:17.277Z",
  "columns": [
    "Width",
    "Dimensions",
    "Seat type"
  ],
  "notices": {
    "facts": "Every value in the table is a fact RoboTrunk checked, linked to the page it came from. A dash means no checked fact fills that cell.",
    "price": "Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live."
  },
  "cited_facts": [
    {
      "ref": "p1.f1",
      "product": "Britax Poplar S ClickTight Convertible Car Seat",
      "field": "dimensions",
      "value": "The seat measures 20.5 x 17 x 23.5 inches.",
      "stated_as": "Product Dimensions: 20.5\" x 17\" x 23.5\"",
      "source_type": "listing",
      "source_url": "https://dd1dfe-a3.myshopify.com/products.json",
      "source_read_at": "2026-10-08T19:02:14.639Z"
    },
    {
      "ref": "p1.f9",
      "product": "Britax Poplar S ClickTight Convertible Car Seat",
      "field": "width",
      "value": "The Poplar and Poplar S are described as among the skinniest car seats on the market, at 17 inches wide externally.",
      "stated_as": "The Poplar and Poplar S are described as among the skinniest car seats on the market, at 17 inches wide externally.",
      "source_type": "blog",
      "source_url": "https://www.thecarseatpros.com/blog/poplarreview",
      "source_read_at": "2026-10-08T23:22:59.655Z"
    },
    {
      "ref": "p1.f11",
      "product": "Britax Poplar S ClickTight Convertible Car Seat",
      "field": "seat type",
      "value": "The article notes it is a 2-in-1 convertible, not an all-in-one, so there is no booster mode and another seat will eventually be needed.",
      "stated_as": "The article notes it is a 2-in-1 convertible, not an all-in-one, so there is no booster mode and another seat will eventually be needed.",
      "source_type": "blog",
      "source_url": "https://www.bemidjibest.com/britax-poplar-s-convertible-car-seat-review/",
      "source_read_at": "2026-10-08T23:23:18.760Z"
    },
    {
      "ref": "p2.f10",
      "product": "Britax One4Life Slim ClickTight All-in-One",
      "field": "width",
      "value": "The seat is 17.5 inches wide, which the listing says lets you fit three across in most vehicles.",
      "stated_as": "Sleek 17.5\" wide design to fit 3 across in most vehicles.",
      "source_type": "listing",
      "source_url": "https://dd1dfe-a3.myshopify.com/products.json",
      "source_read_at": "2026-10-08T19:02:14.639Z"
    },
    {
      "ref": "p3.f1",
      "product": "Clek Fllo",
      "field": "width and three-across",
      "value": "Under 17 inches wide, so it can be installed three-across in most vehicles.",
      "stated_as": "Plus, at less than 17 inches wide, Fllo’s narrow design makes it easy to ride 3-across.",
      "source_type": "listing",
      "source_url": "https://dd1dfe-a3.myshopify.com/products.json",
      "source_read_at": "2026-10-08T19:02:14.639Z"
    },
    {
      "ref": "p5.f8",
      "product": "Cybex Callisto T 360",
      "field": "dimensions",
      "value": "Assembled measurements are 21.7 in long, 19.5 in wide, and 25.5 in high.",
      "stated_as": "Car Seat Measurements Assembled: 21.7\"L X 19.5\"W X 25.5\"H",
      "source_type": "listing",
      "source_url": "https://dd1dfe-a3.myshopify.com/products.json",
      "source_read_at": "2026-10-08T19:02:14.639Z"
    },
    {
      "ref": "p5.f12",
      "product": "Cybex Callisto T 360",
      "field": "group",
      "value": "It is an All-In-One Convertible Seat.",
      "stated_as": "Group: All-In-One Convertible Seat",
      "source_type": "guide",
      "source_url": "https://www.cybex-online.com/en/us/p/cs-pl-callisto-t-360-sensorsafe-3.html",
      "source_read_at": "2026-10-09T17:06:16.472Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "albeebaby-com",
        "display_name": "albeebaby.com"
      },
      "product_id": "gid://shopify/Product/9564453863655",
      "name": "Clek Fllo",
      "url": "/products/ucp/albeebaby-com/9564453863655",
      "why": "Under 17 inches wide, so it can be installed three-across in most vehicles.",
      "cells": [
        {
          "column": "Width",
          "fact": {
            "field": "width and three-across",
            "value": "Under 17 inches wide, so it can be installed three-across in most vehicles.",
            "stated_as": "Plus, at less than 17 inches wide, Fllo’s narrow design makes it easy to ride 3-across.",
            "source_type": "listing",
            "source_url": "https://dd1dfe-a3.myshopify.com/products.json",
            "source_read_at": "2026-10-08T19:02:14.639Z"
          }
        },
        {
          "column": "Dimensions",
          "fact": null
        },
        {
          "column": "Seat type",
          "fact": null
        }
      ],
      "recall": {
        "status": "notice",
        "edition": 1,
        "index_read_at": "2026-09-25T21:56:43.040Z",
        "notices_fetched_at": "2026-09-25T15:02:47.095Z",
        "meaning": "This listing is the brand and model a regulator's notice names. Two AI models judged it so independently. It does not mean the unit on sale is from an affected batch, that the store knew, or that the product is illegal where the store sells it; a US recall does not bind an Australian store. The notice may cover only some serial numbers or dates of manufacture, which a listing does not show. RoboTrunk never limits or blocks a purchase over a notice; read the notice and decide.",
        "notices": [
          {
            "key": "health-canada:76628",
            "regulator": "health-canada",
            "regulator_label": "Health Canada and Transport Canada",
            "id": "76628",
            "title": "Transport Canada Recall - 2024716 - CLEK",
            "date": "2024-11-07",
            "url": "https://recalls-rappels.canada.ca/en/alert-recall/transport-canada-recall-2024716-clek",
            "kind": "safety_notice",
            "batch_limited": true,
            "needs_testing": false
          }
        ]
      }
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "albeebaby-com",
        "display_name": "albeebaby.com"
      },
      "product_id": "gid://shopify/Product/9564453077223",
      "name": "Britax Poplar S ClickTight Convertible Car Seat",
      "url": "/products/ucp/albeebaby-com/9564453077223",
      "why": "The Poplar and Poplar S are described as among the skinniest car seats on the market, at 17 inches wide externally.",
      "cells": [
        {
          "column": "Width",
          "fact": {
            "field": "width",
            "value": "The Poplar and Poplar S are described as among the skinniest car seats on the market, at 17 inches wide externally.",
            "stated_as": "The Poplar and Poplar S are described as among the skinniest car seats on the market, at 17 inches wide externally.",
            "source_type": "blog",
            "source_url": "https://www.thecarseatpros.com/blog/poplarreview",
            "source_read_at": "2026-10-08T23:22:59.655Z"
          }
        },
        {
          "column": "Dimensions",
          "fact": {
            "field": "dimensions",
            "value": "The seat measures 20.5 x 17 x 23.5 inches.",
            "stated_as": "Product Dimensions: 20.5\" x 17\" x 23.5\"",
            "source_type": "listing",
            "source_url": "https://dd1dfe-a3.myshopify.com/products.json",
            "source_read_at": "2026-10-08T19:02:14.639Z"
          }
        },
        {
          "column": "Seat type",
          "fact": {
            "field": "seat type",
            "value": "The article notes it is a 2-in-1 convertible, not an all-in-one, so there is no booster mode and another seat will eventually be needed.",
            "stated_as": "The article notes it is a 2-in-1 convertible, not an all-in-one, so there is no booster mode and another seat will eventually be needed.",
            "source_type": "blog",
            "source_url": "https://www.bemidjibest.com/britax-poplar-s-convertible-car-seat-review/",
            "source_read_at": "2026-10-08T23:23:18.760Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "albeebaby-com",
        "display_name": "albeebaby.com"
      },
      "product_id": "gid://shopify/Product/9564457369831",
      "name": "Britax One4Life Slim ClickTight All-in-One",
      "url": "/products/ucp/albeebaby-com/9564457369831",
      "why": "The seat is 17.5 inches wide, which the listing says lets you fit three across in most vehicles.",
      "cells": [
        {
          "column": "Width",
          "fact": {
            "field": "width",
            "value": "The seat is 17.5 inches wide, which the listing says lets you fit three across in most vehicles.",
            "stated_as": "Sleek 17.5\" wide design to fit 3 across in most vehicles.",
            "source_type": "listing",
            "source_url": "https://dd1dfe-a3.myshopify.com/products.json",
            "source_read_at": "2026-10-08T19:02:14.639Z"
          }
        },
        {
          "column": "Dimensions",
          "fact": null
        },
        {
          "column": "Seat type",
          "fact": null
        }
      ]
    },
    {
      "rank": 4,
      "merchant": {
        "slug": "albeebaby-com",
        "display_name": "albeebaby.com"
      },
      "product_id": "gid://shopify/Product/9722095272167",
      "name": "Cybex Callisto T 360",
      "url": "/products/ucp/albeebaby-com/9722095272167",
      "why": "Assembled measurements are 21.7 in long, 19.5 in wide, and 25.5 in high.",
      "cells": [
        {
          "column": "Width",
          "fact": null
        },
        {
          "column": "Dimensions",
          "fact": {
            "field": "dimensions",
            "value": "Assembled measurements are 21.7 in long, 19.5 in wide, and 25.5 in high.",
            "stated_as": "Car Seat Measurements Assembled: 21.7\"L X 19.5\"W X 25.5\"H",
            "source_type": "listing",
            "source_url": "https://dd1dfe-a3.myshopify.com/products.json",
            "source_read_at": "2026-10-08T19:02:14.639Z"
          }
        },
        {
          "column": "Seat type",
          "fact": {
            "field": "group",
            "value": "It is an All-In-One Convertible Seat.",
            "stated_as": "Group: All-In-One Convertible Seat",
            "source_type": "guide",
            "source_url": "https://www.cybex-online.com/en/us/p/cs-pl-callisto-t-360-sensorsafe-3.html",
            "source_read_at": "2026-10-09T17:06:16.472Z"
          }
        }
      ]
    }
  ]
}