{
  "schema_version": "compare-page.v2",
  "page_id": "booster-seats-with-a-shoulder-belt-guide-that-adjusts-as-a-c",
  "url": "https://robotrunk.com/compare/want/booster-seats-with-a-shoulder-belt-guide-that-adjusts-as-a-c",
  "title": "Booster seats with a shoulder belt guide that adjusts as a child grows",
  "question": "Which booster seats have a shoulder belt guide that can be adjusted as a child grows?",
  "answer": "Diono Monterey 5 iST FixSafe: The review measured about 18.5 lb, a 16.5-inch base without the cup holder, 20 inches with it, and a back expanding from 17 to 23 inches. Its highest shoulder-belt guide measured 21 inches. It has 12 headrest positions and expandable sides.\nPEG / 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. It lists folding, rigid LATCH, adjustable headrest and seat width, no armrests, and side-impact headrest protection as pros.\nBritax UpNGo Click: The maker lists rigid LATCH click-in, a 17.1-inch slim SpaceSaver design, the PosturePlus contoured seat, a carry weight under 5 lb, two dishwasher-safe cup holders, a washer-and-dryer-friendly cover, naturally flame-retardant fabrics with no added FR chemicals, colour-coded belt guides and a shoulder belt guide.\nBritax UpNGo: The shoulder belt guide is only needed when the vehicle belt does not lie flat across the centre of the child's shoulder and chest.\nDIONO Monterey XT: One owner reported that the shoulder belt bunched while moving through the guide; a child-passenger-safety instructor suggested that vehicle belt geometry may contribute and recommended trying a different adjustable-belt height. It has an expandable seat back up to 20 inches, an 11-position head support and a longer seat bottom intended to support growing legs.",
  "kind": "booster car seat",
  "market": "US",
  "generated_at": "2026-10-16T10:50:02.801Z",
  "columns": [
    "Belt guide",
    "Adjustment",
    "Height range"
  ],
  "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": "PEG / Peg Perego Primo Viaggio Flex 120",
      "field": "features",
      "value": "It lists folding, rigid LATCH, adjustable headrest and seat width, no armrests, and side-impact headrest protection as pros.",
      "stated_as": "It lists folding, rigid LATCH, adjustable headrest and seat width, no armrests, and side-impact headrest protection as pros.",
      "source_type": "review",
      "source_url": "https://www.babybargains.com/peg-perego-viaggio-flex-120/",
      "source_read_at": "2026-10-15T13:09:27.741Z"
    },
    {
      "ref": "p1.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": "p1.f12",
      "product": "PEG / Peg Perego Primo Viaggio Flex 120",
      "field": "height",
      "value": "The page says it measured only 19 inches when fully extended and may not fit bigger kids.",
      "stated_as": "The page says it measured only 19 inches when fully extended and may not fit bigger kids.",
      "source_type": "review",
      "source_url": "https://www.babybargains.com/peg-perego-viaggio-flex-120/",
      "source_read_at": "2026-10-15T13:09:27.741Z"
    },
    {
      "ref": "p3.f3",
      "product": "Britax UpNGo",
      "field": "child weight and height limits",
      "value": "The maker designs this booster for children weighing 40 to 120 lbs and measuring 46 to 63 inches tall.",
      "stated_as": "Designed for children from 40-120 lbs and 46”-63\"",
      "source_type": "guide",
      "source_url": "https://us.britax.com/shop/car-seats/upngo-backless-belt-positioning-booster-seat",
      "source_read_at": "2026-10-13T01:07:00.569Z"
    },
    {
      "ref": "p3.f10",
      "product": "Britax UpNGo",
      "field": "shoulder belt guide use",
      "value": "The shoulder belt guide is only needed when the vehicle belt does not lie flat across the centre of the child's shoulder and chest.",
      "stated_as": "The shoulder belt guide is only required if the vehicle seat belt does not lay flat across the center of the child’s shoulder and chest.",
      "source_type": "guide",
      "source_url": "https://us.britax.com/support/frequently-asked-questions/belt-positioning-boosters",
      "source_read_at": "2026-10-13T01:07:07.408Z"
    },
    {
      "ref": "p4.f1",
      "product": "Britax UpNGo Click",
      "field": "weight and height limits",
      "value": "The UpNGo Click is designed for children from 40 to 120 lb and 46 to 63 inches tall.",
      "stated_as": "Designed for children from 40-120 lbs and 46”-63\"",
      "source_type": "listing",
      "source_url": "https://strolleria.myshopify.com/products.json",
      "source_read_at": "2026-10-12T20:06:05.806Z"
    },
    {
      "ref": "p4.f10",
      "product": "Britax UpNGo Click",
      "field": "seat features (maker)",
      "value": "The maker lists rigid LATCH click-in, a 17.1-inch slim SpaceSaver design, the PosturePlus contoured seat, a carry weight under 5 lb, two dishwasher-safe cup holders, a washer-and-dryer-friendly cover, naturally flame-retardant fabrics with no added FR chemicals, colour-coded belt guides and a shoulder belt guide.",
      "stated_as": "Click On, Quick Off\nSteel rigid LATCH connectors click in with ease and release in seconds.",
      "source_type": "guide",
      "source_url": "https://us.britax.com/shop/car-seats/upngo-click-backless-belt-positioning-booster-seat",
      "source_read_at": "2026-10-13T01:39:17.640Z"
    },
    {
      "ref": "p5.f3",
      "product": "Diono Monterey 5 iST FixSafe",
      "field": "Measured size and weight",
      "value": "The review measured about 18.5 lb, a 16.5-inch base without the cup holder, 20 inches with it, and a back expanding from 17 to 23 inches. Its highest shoulder-belt guide measured 21 inches.",
      "stated_as": "The review measured about 18.5 lb, a 16.5-inch base without the cup holder, 20 inches with it, and a back expanding from 17 to 23 inches. Its highest shoulder-belt guide measured 21 inches.",
      "source_type": "review",
      "source_url": "https://csftl.org/diono-monterey-5ist-high-back-booster-review/",
      "source_read_at": "2026-09-25T03:42:40.988Z"
    },
    {
      "ref": "p5.f9",
      "product": "Diono Monterey 5 iST FixSafe",
      "field": "Adjustment",
      "value": "It has 12 headrest positions and expandable sides.",
      "stated_as": "8 YEARS ONE BOOSTER 12 headrest positions and expandable sides to grow with your child",
      "source_type": "guide",
      "source_url": "https://anb-baby.myshopify.com/products/diono-monterey-5-ist-fixsafe-latch-booster-seat",
      "source_read_at": "2026-09-25T03:42:18.642Z"
    },
    {
      "ref": "p5.f11",
      "product": "Diono Monterey 5 iST FixSafe",
      "field": "Older-child longevity",
      "value": "A 56-inch, 90-pound child barely fit at maximum height. The review considered the high-back-only design and shorter top belt-guide position disappointing for long-torsoed or larger children.",
      "stated_as": "A 56-inch, 90-pound child barely fit at maximum height. The review considered the high-back-only design and shorter top belt-guide position disappointing for long-torsoed or larger children.",
      "source_type": "review",
      "source_url": "https://csftl.org/diono-monterey-5ist-high-back-booster-review/",
      "source_read_at": "2026-09-25T03:42:40.988Z"
    },
    {
      "ref": "p6.f5",
      "product": "DIONO Monterey XT",
      "field": "Shoulder-belt movement",
      "value": "One owner reported that the shoulder belt bunched while moving through the guide; a child-passenger-safety instructor suggested that vehicle belt geometry may contribute and recommended trying a different adjustable-belt height.",
      "stated_as": "One owner reported that the shoulder belt bunched while moving through the guide; a child-passenger-safety instructor suggested that vehicle belt geometry may contribute and recommended trying a different adjustable-belt height.",
      "source_type": "review",
      "source_url": "https://www.car-seat.org/threads/diono-monterey-xt.226877/post-2305556",
      "source_read_at": "2026-09-25T03:39:59.015Z"
    },
    {
      "ref": "p6.f6",
      "product": "DIONO Monterey XT",
      "field": "Child fit adjustment",
      "value": "It has an expandable seat back up to 20 inches, an 11-position head support and a longer seat bottom intended to support growing legs.",
      "stated_as": "Grows with your child! expandable seat back (up to 20″), adjustable head support (11 positions), and longer seat bottom to help support growing legs.",
      "source_type": "guide",
      "source_url": "https://anb-baby.myshopify.com/products/diono-monterey-xt-latch-booster-car-seat",
      "source_read_at": "2026-09-25T03:39:52.824Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "anbbaby-com",
        "display_name": "anbbaby.com"
      },
      "product_id": "gid://shopify/Product/6567365279830",
      "name": "Diono Monterey 5 iST FixSafe",
      "url": "/products/ucp/anbbaby-com/6567365279830",
      "why": "The review measured about 18.5 lb, a 16.5-inch base without the cup holder, 20 inches with it, and a back expanding from 17 to 23 inches. Its highest shoulder-belt guide measured 21 inches.",
      "cells": [
        {
          "column": "Belt guide",
          "fact": {
            "field": "Measured size and weight",
            "value": "The review measured about 18.5 lb, a 16.5-inch base without the cup holder, 20 inches with it, and a back expanding from 17 to 23 inches. Its highest shoulder-belt guide measured 21 inches.",
            "stated_as": "The review measured about 18.5 lb, a 16.5-inch base without the cup holder, 20 inches with it, and a back expanding from 17 to 23 inches. Its highest shoulder-belt guide measured 21 inches.",
            "source_type": "review",
            "source_url": "https://csftl.org/diono-monterey-5ist-high-back-booster-review/",
            "source_read_at": "2026-09-25T03:42:40.988Z"
          }
        },
        {
          "column": "Adjustment",
          "fact": {
            "field": "Adjustment",
            "value": "It has 12 headrest positions and expandable sides.",
            "stated_as": "8 YEARS ONE BOOSTER 12 headrest positions and expandable sides to grow with your child",
            "source_type": "guide",
            "source_url": "https://anb-baby.myshopify.com/products/diono-monterey-5-ist-fixsafe-latch-booster-seat",
            "source_read_at": "2026-09-25T03:42:18.642Z"
          }
        },
        {
          "column": "Height range",
          "fact": {
            "field": "Older-child longevity",
            "value": "A 56-inch, 90-pound child barely fit at maximum height. The review considered the high-back-only design and shorter top belt-guide position disappointing for long-torsoed or larger children.",
            "stated_as": "A 56-inch, 90-pound child barely fit at maximum height. The review considered the high-back-only design and shorter top belt-guide position disappointing for long-torsoed or larger children.",
            "source_type": "review",
            "source_url": "https://csftl.org/diono-monterey-5ist-high-back-booster-review/",
            "source_read_at": "2026-09-25T03:42:40.988Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "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": "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.",
      "cells": [
        {
          "column": "Belt guide",
          "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": "Adjustment",
          "fact": {
            "field": "features",
            "value": "It lists folding, rigid LATCH, adjustable headrest and seat width, no armrests, and side-impact headrest protection as pros.",
            "stated_as": "It lists folding, rigid LATCH, adjustable headrest and seat width, no armrests, and side-impact headrest protection as pros.",
            "source_type": "review",
            "source_url": "https://www.babybargains.com/peg-perego-viaggio-flex-120/",
            "source_read_at": "2026-10-15T13:09:27.741Z"
          }
        },
        {
          "column": "Height range",
          "fact": {
            "field": "height",
            "value": "The page says it measured only 19 inches when fully extended and may not fit bigger kids.",
            "stated_as": "The page says it measured only 19 inches when fully extended and may not fit bigger kids.",
            "source_type": "review",
            "source_url": "https://www.babybargains.com/peg-perego-viaggio-flex-120/",
            "source_read_at": "2026-10-15T13:09:27.741Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "strolleria-com",
        "display_name": "strolleria.com"
      },
      "product_id": "gid://shopify/Product/8008999993418",
      "name": "Britax UpNGo Click",
      "url": "/products/ucp/strolleria-com/8008999993418",
      "why": "The maker lists rigid LATCH click-in, a 17.1-inch slim SpaceSaver design, the PosturePlus contoured seat, a carry weight under 5 lb, two dishwasher-safe cup holders, a washer-and-dryer-friendly cover, naturally flame-retardant fabrics with no added FR chemicals, colour-coded belt guides and a shoulder belt guide.",
      "cells": [
        {
          "column": "Belt guide",
          "fact": {
            "field": "seat features (maker)",
            "value": "The maker lists rigid LATCH click-in, a 17.1-inch slim SpaceSaver design, the PosturePlus contoured seat, a carry weight under 5 lb, two dishwasher-safe cup holders, a washer-and-dryer-friendly cover, naturally flame-retardant fabrics with no added FR chemicals, colour-coded belt guides and a shoulder belt guide.",
            "stated_as": "Click On, Quick Off\nSteel rigid LATCH connectors click in with ease and release in seconds.",
            "source_type": "guide",
            "source_url": "https://us.britax.com/shop/car-seats/upngo-click-backless-belt-positioning-booster-seat",
            "source_read_at": "2026-10-13T01:39:17.640Z"
          }
        },
        {
          "column": "Adjustment",
          "fact": null
        },
        {
          "column": "Height range",
          "fact": {
            "field": "weight and height limits",
            "value": "The UpNGo Click is designed for children from 40 to 120 lb and 46 to 63 inches tall.",
            "stated_as": "Designed for children from 40-120 lbs and 46”-63\"",
            "source_type": "listing",
            "source_url": "https://strolleria.myshopify.com/products.json",
            "source_read_at": "2026-10-12T20:06:05.806Z"
          }
        }
      ]
    },
    {
      "rank": 4,
      "merchant": {
        "slug": "strolleria-com",
        "display_name": "strolleria.com"
      },
      "product_id": "gid://shopify/Product/8085815623754",
      "name": "Britax UpNGo",
      "url": "/products/ucp/strolleria-com/8085815623754",
      "why": "The shoulder belt guide is only needed when the vehicle belt does not lie flat across the centre of the child's shoulder and chest.",
      "cells": [
        {
          "column": "Belt guide",
          "fact": {
            "field": "shoulder belt guide use",
            "value": "The shoulder belt guide is only needed when the vehicle belt does not lie flat across the centre of the child's shoulder and chest.",
            "stated_as": "The shoulder belt guide is only required if the vehicle seat belt does not lay flat across the center of the child’s shoulder and chest.",
            "source_type": "guide",
            "source_url": "https://us.britax.com/support/frequently-asked-questions/belt-positioning-boosters",
            "source_read_at": "2026-10-13T01:07:07.408Z"
          }
        },
        {
          "column": "Adjustment",
          "fact": null
        },
        {
          "column": "Height range",
          "fact": {
            "field": "child weight and height limits",
            "value": "The maker designs this booster for children weighing 40 to 120 lbs and measuring 46 to 63 inches tall.",
            "stated_as": "Designed for children from 40-120 lbs and 46”-63\"",
            "source_type": "guide",
            "source_url": "https://us.britax.com/shop/car-seats/upngo-backless-belt-positioning-booster-seat",
            "source_read_at": "2026-10-13T01:07:00.569Z"
          }
        }
      ]
    },
    {
      "rank": 5,
      "merchant": {
        "slug": "anbbaby-com",
        "display_name": "anbbaby.com"
      },
      "product_id": "gid://shopify/Product/4509158408278",
      "name": "DIONO Monterey XT",
      "url": "/products/ucp/anbbaby-com/4509158408278",
      "why": "It has an expandable seat back up to 20 inches, an 11-position head support and a longer seat bottom intended to support growing legs.",
      "cells": [
        {
          "column": "Belt guide",
          "fact": {
            "field": "Shoulder-belt movement",
            "value": "One owner reported that the shoulder belt bunched while moving through the guide; a child-passenger-safety instructor suggested that vehicle belt geometry may contribute and recommended trying a different adjustable-belt height.",
            "stated_as": "One owner reported that the shoulder belt bunched while moving through the guide; a child-passenger-safety instructor suggested that vehicle belt geometry may contribute and recommended trying a different adjustable-belt height.",
            "source_type": "review",
            "source_url": "https://www.car-seat.org/threads/diono-monterey-xt.226877/post-2305556",
            "source_read_at": "2026-09-25T03:39:59.015Z"
          }
        },
        {
          "column": "Adjustment",
          "fact": {
            "field": "Child fit adjustment",
            "value": "It has an expandable seat back up to 20 inches, an 11-position head support and a longer seat bottom intended to support growing legs.",
            "stated_as": "Grows with your child! expandable seat back (up to 20″), adjustable head support (11 positions), and longer seat bottom to help support growing legs.",
            "source_type": "guide",
            "source_url": "https://anb-baby.myshopify.com/products/diono-monterey-xt-latch-booster-car-seat",
            "source_read_at": "2026-09-25T03:39:52.824Z"
          }
        },
        {
          "column": "Height range",
          "fact": null
        }
      ]
    }
  ]
}