{
  "schema_version": "compare-page.v2",
  "page_id": "infant-car-seat-bases-with-a-seat-belt-lock-off",
  "url": "https://robotrunk.com/compare/want/infant-car-seat-bases-with-a-seat-belt-lock-off",
  "title": "Infant car seat bases with a seat belt lock-off",
  "question": "Which infant car seat bases include a seat belt lock-off intended to simplify installation?",
  "answer": "Nuna PIPA RELX Car Seat Base: The two-section lockoff keeps the lap and shoulder portions of the vehicle belt separate, reducing bunching and making belt installation easier than on the original base. The installer found installation in a Honda CR-V straightforward: unlock and extend the load leg, click the latches, and confirm the indicators turn green.\nEvenflo LiteMax LX Infant Car Seat Base: The belt lock-off is called the main selling point and is said to make seat belt installation feel more controlled and to cut the usual guesswork over belt tension. A two-step lock-off system works with the vehicle's seat belts for secure installation.\nEvenflo LiteMax DLX Infant Car Seat Base with LoadLeg: The base's lock-off makes installation quick with either the seat belt or the lower anchors, and the seat belt is easier if the base is regularly moved between cars. LATCH installation with this base was one of the hardest in its test group; the lock-off took several tries to get tight, the buckle bumped into the base and a lot of pressure was needed to engage the lock-off fully.\nBritax StayTight Base: Britax says StayTight is not the ClickTight system; it uses a lever-activated seat-belt tensioner and integrated lock-off on the StayTight base. Installation is done by lifting the lever, routing the seat belt through the color-coded belt path, buckling, and lowering the lever to lock it.\nCybex SafeLock Base for Aton M: The base has a lockoff that closes over either the lower-anchor webbing or the vehicle seat belt.",
  "kind": "car seat accessory",
  "market": "US",
  "generated_at": "2026-10-23T19:39:21.448Z",
  "columns": [
    "Lock-off",
    "Installation",
    "Compatibility"
  ],
  "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": "Evenflo LiteMax LX Infant Car Seat Base",
      "field": "compatibility",
      "value": "Evenflo's product page says to use the base only with LiteMax infant car seats; the blog also lists SafeMax, so the sources disagree on compatibility.",
      "stated_as": "LiteMax Accessory Base: To be used ONLY with LiteMax infant car seats",
      "source_type": "guide",
      "source_url": "https://www.evenflo.com/products/litemax-lx-car-seat-base",
      "source_read_at": "2026-10-12T05:55:23.300Z"
    },
    {
      "ref": "p1.f4",
      "product": "Evenflo LiteMax LX Infant Car Seat Base",
      "field": "belt lock-off",
      "value": "The belt lock-off is called the main selling point and is said to make seat belt installation feel more controlled and to cut the usual guesswork over belt tension.",
      "stated_as": "The belt lock-off is called the main selling point and is said to make seat belt installation feel more controlled and to cut the usual guesswork over belt tension.",
      "source_type": "review",
      "source_url": "https://www.youtube.com/watch?v=7Smi4F7f3TQ",
      "source_read_at": "2026-10-12T05:57:00.952Z"
    },
    {
      "ref": "p1.f5",
      "product": "Evenflo LiteMax LX Infant Car Seat Base",
      "field": "installation",
      "value": "A two-step lock-off system works with the vehicle's seat belts for secure installation.",
      "stated_as": "Plus, the two-step lock-off system works with your vehicle's seat belts for easy, secure installation",
      "source_type": "listing",
      "source_url": "https://evenflobaby.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:17:34.584Z"
    },
    {
      "ref": "p5.f3",
      "product": "Britax StayTight Base",
      "field": "StayTight versus ClickTight",
      "value": "Britax says StayTight is not the ClickTight system; it uses a lever-activated seat-belt tensioner and integrated lock-off on the StayTight base.",
      "stated_as": "StayTight is a different Britax installation system that uses a lever-activated seat-belt tensioner and integrated lock-off on the StayTight base; it is not the ClickTight system used on other Britax seats.",
      "source_type": "guide",
      "source_url": "https://us.britax.com/support/faq/infant-car-seats",
      "source_read_at": "2026-10-17T23:41:41.135Z"
    },
    {
      "ref": "p5.f7",
      "product": "Britax StayTight Base",
      "field": "compatibility",
      "value": "The Arbor infant car seat is not compatible with Britax ClickTight bases; it comes with the StayTight base and can also be installed without a base.",
      "stated_as": "No, the Arbor infant car seat is not compatible with Britax ClickTight bases. The seat comes with the StayTight base, and it also offers a baseless install using the included belt guides for secure routing.",
      "source_type": "guide",
      "source_url": "https://us.britax.com/support/faq/infant-car-seats",
      "source_read_at": "2026-10-17T23:41:41.135Z"
    },
    {
      "ref": "p5.f9",
      "product": "Britax StayTight Base",
      "field": "installation",
      "value": "Installation is done by lifting the lever, routing the seat belt through the color-coded belt path, buckling, and lowering the lever to lock it.",
      "stated_as": "Simply lift the lever, route the seat belt through the accessible color-coded belt path, and buckle. Then, lower the lever to lock in place.",
      "source_type": "guide",
      "source_url": "https://top-stroll.myshopify.com/products/britax-staytight-base-extra-base-for-arbor-infant-car-seat",
      "source_read_at": "2026-10-17T23:41:33.741Z"
    },
    {
      "ref": "p6.f5",
      "product": "Evenflo LiteMax DLX Infant Car Seat Base with LoadLeg",
      "field": "base compatibility",
      "value": "The DLX base fits any LiteMax carrier, so an owner of a basic LiteMax can add a load leg simply by buying this base.",
      "stated_as": "The DLX base fits any LiteMax carrier, so an owner of a basic LiteMax can add a load leg simply by buying this base.",
      "source_type": "review",
      "source_url": "https://csftl.org/evenflo-litemax-dlx-review/",
      "source_read_at": "2026-10-12T05:15:47.232Z"
    },
    {
      "ref": "p6.f6",
      "product": "Evenflo LiteMax DLX Infant Car Seat Base with LoadLeg",
      "field": "LATCH installation",
      "value": "LATCH installation with this base was one of the hardest in its test group; the lock-off took several tries to get tight, the buckle bumped into the base and a lot of pressure was needed to engage the lock-off fully.",
      "stated_as": "LATCH installation with this base was one of the hardest in its test group; the lock-off took several tries to get tight, the buckle bumped into the base and a lot of pressure was needed to engage the lock-off fully.",
      "source_type": "review",
      "source_url": "https://www.babygearlab.com/reviews/vehicle-safety/infant-car-seat/evenflo-litemax-dlx",
      "source_read_at": "2026-10-12T05:16:50.400Z"
    },
    {
      "ref": "p6.f8",
      "product": "Evenflo LiteMax DLX Infant Car Seat Base with LoadLeg",
      "field": "installation",
      "value": "The base's lock-off makes installation quick with either the seat belt or the lower anchors, and the seat belt is easier if the base is regularly moved between cars.",
      "stated_as": "The base's lock-off makes installation quick with either the seat belt or the lower anchors, and the seat belt is easier if the base is regularly moved between cars.",
      "source_type": "review",
      "source_url": "https://www.safeintheseat.com/seats/evenflo-litemax-dlx",
      "source_read_at": "2026-10-12T05:17:00.044Z"
    },
    {
      "ref": "p7.f2",
      "product": "Nuna PIPA RELX Car Seat Base",
      "field": "installation",
      "value": "The installer found installation in a Honda CR-V straightforward: unlock and extend the load leg, click the latches, and confirm the indicators turn green.",
      "stated_as": "The installer found installation in a Honda CR-V straightforward: unlock and extend the load leg, click the latches, and confirm the indicators turn green.",
      "source_type": "review",
      "source_url": "https://www.youtube.com/watch?v=KaKETntTdrE",
      "source_read_at": "2026-10-22T08:21:05.344Z"
    },
    {
      "ref": "p7.f3",
      "product": "Nuna PIPA RELX Car Seat Base",
      "field": "compatibility",
      "value": "The store says it is compatible with PIPA aire, PIPA rx and PIPA aire rx, and not compatible with PIPA urbn.",
      "stated_as": "Compatible with: PIPA aire, PIPA rx, PIPA aire rx. (Not compatible with PIPA urbn.)",
      "source_type": "guide",
      "source_url": "https://modern-nursery-test-store.myshopify.com/products/nuna-relx-series-car-seat-base",
      "source_read_at": "2026-10-22T08:19:18.398Z"
    },
    {
      "ref": "p7.f6",
      "product": "Nuna PIPA RELX Car Seat Base",
      "field": "lockoff",
      "value": "The two-section lockoff keeps the lap and shoulder portions of the vehicle belt separate, reducing bunching and making belt installation easier than on the original base.",
      "stated_as": "The two-section lockoff keeps the lap and shoulder portions of the vehicle belt separate, reducing bunching and making belt installation easier than on the original base.",
      "source_type": "review",
      "source_url": "https://csftl.org/nuna-pipa-rx-review/",
      "source_read_at": "2026-10-22T08:19:24.730Z"
    },
    {
      "ref": "p8.f2",
      "product": "Cybex SafeLock Base for Aton M",
      "field": "compatibility",
      "value": "The base is designed to work with the Cybex Aton M infant car seat.",
      "stated_as": "The SafeLock™ Base works seamlessly with the Aton M car seat",
      "source_type": "guide",
      "source_url": "https://www.cybex-online.com/en/us/p/cs-go-safelock-base-aton-m.html",
      "source_read_at": "2026-10-18T16:15:15.928Z"
    },
    {
      "ref": "p8.f4",
      "product": "Cybex SafeLock Base for Aton M",
      "field": "lockoff",
      "value": "The base has a lockoff that closes over either the lower-anchor webbing or the vehicle seat belt.",
      "stated_as": "The base has a lockoff that closes over either the lower-anchor webbing or the vehicle seat belt.",
      "source_type": "review",
      "source_url": "https://csftl.org/cybex-aton-m-review/",
      "source_read_at": "2026-10-18T16:15:44.723Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "modernnursery-com",
        "display_name": "modernnursery.com"
      },
      "product_id": "gid://shopify/Product/4799126143076",
      "name": "Nuna PIPA RELX Car Seat Base",
      "url": "/products/ucp/modernnursery-com/4799126143076",
      "why": "The two-section lockoff keeps the lap and shoulder portions of the vehicle belt separate, reducing bunching and making belt installation easier than on the original base.",
      "cells": [
        {
          "column": "Lock-off",
          "fact": {
            "field": "lockoff",
            "value": "The two-section lockoff keeps the lap and shoulder portions of the vehicle belt separate, reducing bunching and making belt installation easier than on the original base.",
            "stated_as": "The two-section lockoff keeps the lap and shoulder portions of the vehicle belt separate, reducing bunching and making belt installation easier than on the original base.",
            "source_type": "review",
            "source_url": "https://csftl.org/nuna-pipa-rx-review/",
            "source_read_at": "2026-10-22T08:19:24.730Z"
          }
        },
        {
          "column": "Installation",
          "fact": {
            "field": "installation",
            "value": "The installer found installation in a Honda CR-V straightforward: unlock and extend the load leg, click the latches, and confirm the indicators turn green.",
            "stated_as": "The installer found installation in a Honda CR-V straightforward: unlock and extend the load leg, click the latches, and confirm the indicators turn green.",
            "source_type": "review",
            "source_url": "https://www.youtube.com/watch?v=KaKETntTdrE",
            "source_read_at": "2026-10-22T08:21:05.344Z"
          }
        },
        {
          "column": "Compatibility",
          "fact": {
            "field": "compatibility",
            "value": "The store says it is compatible with PIPA aire, PIPA rx and PIPA aire rx, and not compatible with PIPA urbn.",
            "stated_as": "Compatible with: PIPA aire, PIPA rx, PIPA aire rx. (Not compatible with PIPA urbn.)",
            "source_type": "guide",
            "source_url": "https://modern-nursery-test-store.myshopify.com/products/nuna-relx-series-car-seat-base",
            "source_read_at": "2026-10-22T08:19:18.398Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "evenflo-com",
        "display_name": "evenflo.com"
      },
      "product_id": "gid://shopify/Product/8403790725276",
      "name": "Evenflo LiteMax LX Infant Car Seat Base",
      "url": "/products/ucp/evenflo-com/8403790725276",
      "why": "The belt lock-off is called the main selling point and is said to make seat belt installation feel more controlled and to cut the usual guesswork over belt tension.",
      "cells": [
        {
          "column": "Lock-off",
          "fact": {
            "field": "belt lock-off",
            "value": "The belt lock-off is called the main selling point and is said to make seat belt installation feel more controlled and to cut the usual guesswork over belt tension.",
            "stated_as": "The belt lock-off is called the main selling point and is said to make seat belt installation feel more controlled and to cut the usual guesswork over belt tension.",
            "source_type": "review",
            "source_url": "https://www.youtube.com/watch?v=7Smi4F7f3TQ",
            "source_read_at": "2026-10-12T05:57:00.952Z"
          }
        },
        {
          "column": "Installation",
          "fact": {
            "field": "installation",
            "value": "A two-step lock-off system works with the vehicle's seat belts for secure installation.",
            "stated_as": "Plus, the two-step lock-off system works with your vehicle's seat belts for easy, secure installation",
            "source_type": "listing",
            "source_url": "https://evenflobaby.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:17:34.584Z"
          }
        },
        {
          "column": "Compatibility",
          "fact": {
            "field": "compatibility",
            "value": "Evenflo's product page says to use the base only with LiteMax infant car seats; the blog also lists SafeMax, so the sources disagree on compatibility.",
            "stated_as": "LiteMax Accessory Base: To be used ONLY with LiteMax infant car seats",
            "source_type": "guide",
            "source_url": "https://www.evenflo.com/products/litemax-lx-car-seat-base",
            "source_read_at": "2026-10-12T05:55:23.300Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "evenflo-com",
        "display_name": "evenflo.com"
      },
      "product_id": "gid://shopify/Product/6707712295068",
      "name": "Evenflo LiteMax DLX Infant Car Seat Base with LoadLeg",
      "url": "/products/ucp/evenflo-com/6707712295068",
      "why": "The base's lock-off makes installation quick with either the seat belt or the lower anchors, and the seat belt is easier if the base is regularly moved between cars.",
      "cells": [
        {
          "column": "Lock-off",
          "fact": {
            "field": "installation",
            "value": "The base's lock-off makes installation quick with either the seat belt or the lower anchors, and the seat belt is easier if the base is regularly moved between cars.",
            "stated_as": "The base's lock-off makes installation quick with either the seat belt or the lower anchors, and the seat belt is easier if the base is regularly moved between cars.",
            "source_type": "review",
            "source_url": "https://www.safeintheseat.com/seats/evenflo-litemax-dlx",
            "source_read_at": "2026-10-12T05:17:00.044Z"
          }
        },
        {
          "column": "Installation",
          "fact": {
            "field": "LATCH installation",
            "value": "LATCH installation with this base was one of the hardest in its test group; the lock-off took several tries to get tight, the buckle bumped into the base and a lot of pressure was needed to engage the lock-off fully.",
            "stated_as": "LATCH installation with this base was one of the hardest in its test group; the lock-off took several tries to get tight, the buckle bumped into the base and a lot of pressure was needed to engage the lock-off fully.",
            "source_type": "review",
            "source_url": "https://www.babygearlab.com/reviews/vehicle-safety/infant-car-seat/evenflo-litemax-dlx",
            "source_read_at": "2026-10-12T05:16:50.400Z"
          }
        },
        {
          "column": "Compatibility",
          "fact": {
            "field": "base compatibility",
            "value": "The DLX base fits any LiteMax carrier, so an owner of a basic LiteMax can add a load leg simply by buying this base.",
            "stated_as": "The DLX base fits any LiteMax carrier, so an owner of a basic LiteMax can add a load leg simply by buying this base.",
            "source_type": "review",
            "source_url": "https://csftl.org/evenflo-litemax-dlx-review/",
            "source_read_at": "2026-10-12T05:15:47.232Z"
          }
        }
      ]
    },
    {
      "rank": 4,
      "merchant": {
        "slug": "megababiesusa-com",
        "display_name": "megababiesusa.com"
      },
      "product_id": "gid://shopify/Product/9159430865150",
      "name": "Britax StayTight Base",
      "url": "/products/ucp/megababiesusa-com/9159430865150",
      "why": "Britax says StayTight is not the ClickTight system; it uses a lever-activated seat-belt tensioner and integrated lock-off on the StayTight base.",
      "cells": [
        {
          "column": "Lock-off",
          "fact": {
            "field": "StayTight versus ClickTight",
            "value": "Britax says StayTight is not the ClickTight system; it uses a lever-activated seat-belt tensioner and integrated lock-off on the StayTight base.",
            "stated_as": "StayTight is a different Britax installation system that uses a lever-activated seat-belt tensioner and integrated lock-off on the StayTight base; it is not the ClickTight system used on other Britax seats.",
            "source_type": "guide",
            "source_url": "https://us.britax.com/support/faq/infant-car-seats",
            "source_read_at": "2026-10-17T23:41:41.135Z"
          }
        },
        {
          "column": "Installation",
          "fact": {
            "field": "installation",
            "value": "Installation is done by lifting the lever, routing the seat belt through the color-coded belt path, buckling, and lowering the lever to lock it.",
            "stated_as": "Simply lift the lever, route the seat belt through the accessible color-coded belt path, and buckle. Then, lower the lever to lock in place.",
            "source_type": "guide",
            "source_url": "https://top-stroll.myshopify.com/products/britax-staytight-base-extra-base-for-arbor-infant-car-seat",
            "source_read_at": "2026-10-17T23:41:33.741Z"
          }
        },
        {
          "column": "Compatibility",
          "fact": {
            "field": "compatibility",
            "value": "The Arbor infant car seat is not compatible with Britax ClickTight bases; it comes with the StayTight base and can also be installed without a base.",
            "stated_as": "No, the Arbor infant car seat is not compatible with Britax ClickTight bases. The seat comes with the StayTight base, and it also offers a baseless install using the included belt guides for secure routing.",
            "source_type": "guide",
            "source_url": "https://us.britax.com/support/faq/infant-car-seats",
            "source_read_at": "2026-10-17T23:41:41.135Z"
          }
        }
      ]
    },
    {
      "rank": 5,
      "merchant": {
        "slug": "megababiesusa-com",
        "display_name": "megababiesusa.com"
      },
      "product_id": "gid://shopify/Product/817232052285",
      "name": "Cybex SafeLock Base for Aton M",
      "url": "/products/ucp/megababiesusa-com/817232052285",
      "why": "The base has a lockoff that closes over either the lower-anchor webbing or the vehicle seat belt.",
      "cells": [
        {
          "column": "Lock-off",
          "fact": {
            "field": "lockoff",
            "value": "The base has a lockoff that closes over either the lower-anchor webbing or the vehicle seat belt.",
            "stated_as": "The base has a lockoff that closes over either the lower-anchor webbing or the vehicle seat belt.",
            "source_type": "review",
            "source_url": "https://csftl.org/cybex-aton-m-review/",
            "source_read_at": "2026-10-18T16:15:44.723Z"
          }
        },
        {
          "column": "Installation",
          "fact": null
        },
        {
          "column": "Compatibility",
          "fact": {
            "field": "compatibility",
            "value": "The base is designed to work with the Cybex Aton M infant car seat.",
            "stated_as": "The SafeLock™ Base works seamlessly with the Aton M car seat",
            "source_type": "guide",
            "source_url": "https://www.cybex-online.com/en/us/p/cs-go-safelock-base-aton-m.html",
            "source_read_at": "2026-10-18T16:15:15.928Z"
          }
        }
      ]
    }
  ]
}