{
  "schema_version": "compare-page.v2",
  "page_id": "booster-car-seat-readiness-requirements-by-product",
  "url": "https://robotrunk.com/compare/want/booster-car-seat-readiness-requirements-by-product",
  "title": "Booster car seat readiness: requirements by product",
  "question": "Whether a child is ready to move up to a booster car seat, based on the listed size, age and sitting requirements.",
  "answer": "Clek Olli: The child must be 40–57 inches tall and weigh 40–120 pounds; Clek recommends a minimum age of 4 years. Beyond meeting the stated limits, the child must sit upright without slouching and keep the belt properly positioned. Britax Skyline 2-Stage Belt-Positioning Booster Car Seat: High-back mode is for children weighing 40–120 lb and measuring 44–63 inches; backless mode is for 48–120 lb and 46–63 inches. In either mode, the child must be able to remain seated properly. PEG / Peg Perego Primo Viaggio Flex 120: It is one of the tallest boosters on the market; the highest belt guide is 22 inches, with a 63-inch height limit and 120-pound weight limit, and no vehicle head restraint is needed. A booster without armrests gives a child more freedom to move, so maturity matters for sitting correctly. Mifold Comfort: Store page features: meets/exceeds US FMVSS 213b; designed for ages 4+; slim enough for three across in most vehicles; regulated for use during travel; ideal for road trips, carpools, taxis, rental cars, daily use; shoulder belt guide clips and slides. In hands-on fit testing, the lap belt with mifold Comfort landed far forward on a smaller child's thighs, outside the recommended range; in a crash the pelvis could move forward without engaging the lap belt. The reviewer notes about 80% of original mifold fit photos also had unacceptable lap belt fit.",
  "kind": "booster car seat",
  "market": "US",
  "generated_at": "2026-10-24T00:03:03.393Z",
  "columns": [
    "Size and age",
    "Readiness",
    "Belt fit"
  ],
  "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.f2",
      "product": "Britax Skyline 2-Stage Belt-Positioning Booster Car Seat",
      "field": "Modes and limits",
      "value": "High-back mode is for children weighing 40–120 lb and measuring 44–63 inches; backless mode is for 48–120 lb and 46–63 inches.",
      "stated_as": "converts from a high-back booster (40-120 lbs / 44”-63”) to a backless booster (48-120 lbs / 46”-63”)",
      "source_type": "guide",
      "source_url": "https://us.britax.com/shop/car-seats/skyline-2-stage-belt-positioning-booster-car-seat",
      "source_read_at": "2026-09-24T12:47:25.733Z"
    },
    {
      "ref": "p1.f3",
      "product": "Britax Skyline 2-Stage Belt-Positioning Booster Car Seat",
      "field": "Child readiness",
      "value": "In either mode, the child must be able to remain seated properly.",
      "stated_as": "who can remain sitting properly",
      "source_type": "manual",
      "source_url": "https://csus.britax.com/media/13021656/p11770100_user-guide-skyline-booster-2019-us_web.pdf",
      "source_read_at": "2026-09-24T12:47:33.410Z"
    },
    {
      "ref": "p1.f12",
      "product": "Britax Skyline 2-Stage Belt-Positioning Booster Car Seat",
      "field": "High-back fit",
      "value": "The tested six- and eight-year-old children received good high-back belt positioning, with the shoulder belt centered and lap belt low near the hips and thighs. The tall belt guide left useful growing room.",
      "stated_as": "The tested six- and eight-year-old children received good high-back belt positioning, with the shoulder belt centered and lap belt low near the hips and thighs. The tall belt guide left useful growing room.",
      "source_type": "review",
      "source_url": "https://csftl.org/britax-highpoint-skyline-2-stage-booster-review/",
      "source_read_at": "2026-09-24T12:47:35.192Z"
    },
    {
      "ref": "p2.f1",
      "product": "Clek Olli",
      "field": "Child requirements",
      "value": "The child must be 40–57 inches tall and weigh 40–120 pounds; Clek recommends a minimum age of 4 years.",
      "stated_as": "Height: 40–57 in.\nWeight: 40–120 lb\nMinimum Age: 4+ years recommended",
      "source_type": "guide",
      "source_url": "https://clekinc.com/collections/all-products/products/olli",
      "source_read_at": "2026-09-24T19:37:32.400Z"
    },
    {
      "ref": "p2.f2",
      "product": "Clek Olli",
      "field": "Readiness",
      "value": "Beyond meeting the stated limits, the child must sit upright without slouching and keep the belt properly positioned.",
      "stated_as": "Child is sitting upright and is not slouching",
      "source_type": "manual",
      "source_url": "https://support.clekinc.com/hc/en-us/article_attachments/42735068224269",
      "source_read_at": "2026-09-24T19:37:33.446Z"
    },
    {
      "ref": "p2.f9",
      "product": "Clek Olli",
      "field": "Fit concern",
      "value": "Consumer Reports warned that rigid LATCH can hold the booster too far forward in some vehicles, potentially producing incorrect lap-belt fit.",
      "stated_as": "Consumer Reports warned that rigid LATCH can hold the booster too far forward in some vehicles, potentially producing incorrect lap-belt fit.",
      "source_type": "review",
      "source_url": "https://www.consumerreports.org/babies-kids/car-seats/clek-olli/m191143/",
      "source_read_at": "2026-09-24T19:37:38.084Z"
    },
    {
      "ref": "p3.f9",
      "product": "PEG / Peg Perego Primo Viaggio Flex 120",
      "field": "maturity",
      "value": "A booster without armrests gives a child more freedom to move, so maturity matters for sitting correctly.",
      "stated_as": "A booster without armrests gives a child more freedom to move, so maturity matters for sitting correctly.",
      "source_type": "blog",
      "source_url": "https://www.thecarseatpros.com/blog/2026-peg-viaggio-flex-120-highback-booster-review",
      "source_read_at": "2026-10-15T13:09:23.392Z"
    },
    {
      "ref": "p3.f10",
      "product": "PEG / Peg Perego Primo Viaggio Flex 120",
      "field": "height and limits",
      "value": "It is one of the tallest boosters on the market; the highest belt guide is 22 inches, with a 63-inch height limit and 120-pound weight limit, and no vehicle head restraint is needed.",
      "stated_as": "It is one of the tallest boosters on the market; the highest belt guide is 22 inches, with a 63-inch height limit and 120-pound weight limit, and no vehicle head restraint is needed.",
      "source_type": "blog",
      "source_url": "https://thecarcrashdetective.com/peg-perego-viaggio-flex-120-review/",
      "source_read_at": "2026-10-15T13:09:25.829Z"
    },
    {
      "ref": "p5.f5",
      "product": "Mifold Comfort",
      "field": "lap belt fit",
      "value": "In hands-on fit testing, the lap belt with mifold Comfort landed far forward on a smaller child's thighs, outside the recommended range; in a crash the pelvis could move forward without engaging the lap belt. The reviewer notes about 80% of original mifold fit photos also had unacceptable lap belt fit.",
      "stated_as": "In hands-on fit testing, the lap belt with mifold Comfort landed far forward on a smaller child's thighs, outside the recommended range; in a crash the pelvis could move forward without engaging the lap belt. The reviewer notes about 80% of original mifold fit photos also had unacceptable lap belt fit.",
      "source_type": "review",
      "source_url": "https://travelcarseatexpert.com/mifold-review-mifold-comfort/",
      "source_read_at": "2026-10-15T06:21:17.452Z"
    },
    {
      "ref": "p5.f10",
      "product": "Mifold Comfort",
      "field": "features",
      "value": "Store page features: meets/exceeds US FMVSS 213b; designed for ages 4+; slim enough for three across in most vehicles; regulated for use during travel; ideal for road trips, carpools, taxis, rental cars, daily use; shoulder belt guide clips and slides.",
      "stated_as": "• Meets and exceeds US FMVSS 213b standards\n• Designed for children ages 4+\n• Slim enough to fit three across in most vehicles\n• Regulated for use during travel\n• Ideal for road trips, carpools, taxis, rental cars, and daily use\n• Shoulder belt guide clips and slides for a secure fit",
      "source_type": "guide",
      "source_url": "https://strolleria.myshopify.com/products/mifold-comfort-grab-and-go-booster",
      "source_read_at": "2026-10-15T06:21:00.306Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "anbbaby-com",
        "display_name": "anbbaby.com"
      },
      "product_id": "gid://shopify/Product/9829484658974",
      "name": "Clek Olli",
      "url": "/products/ucp/anbbaby-com/9829484658974",
      "why": "Beyond meeting the stated limits, the child must sit upright without slouching and keep the belt properly positioned.",
      "cells": [
        {
          "column": "Size and age",
          "fact": {
            "field": "Child requirements",
            "value": "The child must be 40–57 inches tall and weigh 40–120 pounds; Clek recommends a minimum age of 4 years.",
            "stated_as": "Height: 40–57 in.\nWeight: 40–120 lb\nMinimum Age: 4+ years recommended",
            "source_type": "guide",
            "source_url": "https://clekinc.com/collections/all-products/products/olli",
            "source_read_at": "2026-09-24T19:37:32.400Z"
          }
        },
        {
          "column": "Readiness",
          "fact": {
            "field": "Readiness",
            "value": "Beyond meeting the stated limits, the child must sit upright without slouching and keep the belt properly positioned.",
            "stated_as": "Child is sitting upright and is not slouching",
            "source_type": "manual",
            "source_url": "https://support.clekinc.com/hc/en-us/article_attachments/42735068224269",
            "source_read_at": "2026-09-24T19:37:33.446Z"
          }
        },
        {
          "column": "Belt fit",
          "fact": {
            "field": "Fit concern",
            "value": "Consumer Reports warned that rigid LATCH can hold the booster too far forward in some vehicles, potentially producing incorrect lap-belt fit.",
            "stated_as": "Consumer Reports warned that rigid LATCH can hold the booster too far forward in some vehicles, potentially producing incorrect lap-belt fit.",
            "source_type": "review",
            "source_url": "https://www.consumerreports.org/babies-kids/car-seats/clek-olli/m191143/",
            "source_read_at": "2026-09-24T19:37:38.084Z"
          }
        }
      ],
      "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": "anbbaby-com",
        "display_name": "anbbaby.com"
      },
      "product_id": "gid://shopify/Product/6577982505046",
      "name": "Britax Skyline 2-Stage Belt-Positioning Booster Car Seat",
      "url": "/products/ucp/anbbaby-com/6577982505046",
      "why": "In either mode, the child must be able to remain seated properly.",
      "cells": [
        {
          "column": "Size and age",
          "fact": {
            "field": "Modes and limits",
            "value": "High-back mode is for children weighing 40–120 lb and measuring 44–63 inches; backless mode is for 48–120 lb and 46–63 inches.",
            "stated_as": "converts from a high-back booster (40-120 lbs / 44”-63”) to a backless booster (48-120 lbs / 46”-63”)",
            "source_type": "guide",
            "source_url": "https://us.britax.com/shop/car-seats/skyline-2-stage-belt-positioning-booster-car-seat",
            "source_read_at": "2026-09-24T12:47:25.733Z"
          }
        },
        {
          "column": "Readiness",
          "fact": {
            "field": "Child readiness",
            "value": "In either mode, the child must be able to remain seated properly.",
            "stated_as": "who can remain sitting properly",
            "source_type": "manual",
            "source_url": "https://csus.britax.com/media/13021656/p11770100_user-guide-skyline-booster-2019-us_web.pdf",
            "source_read_at": "2026-09-24T12:47:33.410Z"
          }
        },
        {
          "column": "Belt fit",
          "fact": {
            "field": "High-back fit",
            "value": "The tested six- and eight-year-old children received good high-back belt positioning, with the shoulder belt centered and lap belt low near the hips and thighs. The tall belt guide left useful growing room.",
            "stated_as": "The tested six- and eight-year-old children received good high-back belt positioning, with the shoulder belt centered and lap belt low near the hips and thighs. The tall belt guide left useful growing room.",
            "source_type": "review",
            "source_url": "https://csftl.org/britax-highpoint-skyline-2-stage-booster-review/",
            "source_read_at": "2026-09-24T12:47:35.192Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "strolleria-com",
        "display_name": "strolleria.com"
      },
      "product_id": "gid://shopify/Product/3782284247114",
      "name": "PEG / Peg Perego Primo Viaggio Flex 120",
      "url": "/products/ucp/strolleria-com/3782284247114",
      "why": "A booster without armrests gives a child more freedom to move, so maturity matters for sitting correctly.",
      "cells": [
        {
          "column": "Size and age",
          "fact": {
            "field": "height and limits",
            "value": "It is one of the tallest boosters on the market; the highest belt guide is 22 inches, with a 63-inch height limit and 120-pound weight limit, and no vehicle head restraint is needed.",
            "stated_as": "It is one of the tallest boosters on the market; the highest belt guide is 22 inches, with a 63-inch height limit and 120-pound weight limit, and no vehicle head restraint is needed.",
            "source_type": "blog",
            "source_url": "https://thecarcrashdetective.com/peg-perego-viaggio-flex-120-review/",
            "source_read_at": "2026-10-15T13:09:25.829Z"
          }
        },
        {
          "column": "Readiness",
          "fact": {
            "field": "maturity",
            "value": "A booster without armrests gives a child more freedom to move, so maturity matters for sitting correctly.",
            "stated_as": "A booster without armrests gives a child more freedom to move, so maturity matters for sitting correctly.",
            "source_type": "blog",
            "source_url": "https://www.thecarseatpros.com/blog/2026-peg-viaggio-flex-120-highback-booster-review",
            "source_read_at": "2026-10-15T13:09:23.392Z"
          }
        },
        {
          "column": "Belt fit",
          "fact": null
        }
      ]
    },
    {
      "rank": 4,
      "merchant": {
        "slug": "strolleria-com",
        "display_name": "strolleria.com"
      },
      "product_id": "gid://shopify/Product/8212651343946",
      "name": "Mifold Comfort",
      "url": "/products/ucp/strolleria-com/8212651343946",
      "why": "Store page features: meets/exceeds US FMVSS 213b; designed for ages 4+; slim enough for three across in most vehicles; regulated for use during travel; ideal for road trips, carpools, taxis, rental cars, daily use; shoulder belt guide clips and slides.",
      "cells": [
        {
          "column": "Size and age",
          "fact": {
            "field": "features",
            "value": "Store page features: meets/exceeds US FMVSS 213b; designed for ages 4+; slim enough for three across in most vehicles; regulated for use during travel; ideal for road trips, carpools, taxis, rental cars, daily use; shoulder belt guide clips and slides.",
            "stated_as": "• Meets and exceeds US FMVSS 213b standards\n• Designed for children ages 4+\n• Slim enough to fit three across in most vehicles\n• Regulated for use during travel\n• Ideal for road trips, carpools, taxis, rental cars, and daily use\n• Shoulder belt guide clips and slides for a secure fit",
            "source_type": "guide",
            "source_url": "https://strolleria.myshopify.com/products/mifold-comfort-grab-and-go-booster",
            "source_read_at": "2026-10-15T06:21:00.306Z"
          }
        },
        {
          "column": "Readiness",
          "fact": null
        },
        {
          "column": "Belt fit",
          "fact": {
            "field": "lap belt fit",
            "value": "In hands-on fit testing, the lap belt with mifold Comfort landed far forward on a smaller child's thighs, outside the recommended range; in a crash the pelvis could move forward without engaging the lap belt. The reviewer notes about 80% of original mifold fit photos also had unacceptable lap belt fit.",
            "stated_as": "In hands-on fit testing, the lap belt with mifold Comfort landed far forward on a smaller child's thighs, outside the recommended range; in a crash the pelvis could move forward without engaging the lap belt. The reviewer notes about 80% of original mifold fit photos also had unacceptable lap belt fit.",
            "source_type": "review",
            "source_url": "https://travelcarseatexpert.com/mifold-review-mifold-comfort/",
            "source_read_at": "2026-10-15T06:21:17.452Z"
          }
        }
      ]
    }
  ]
}