{
  "license": "CC BY 4.0",
  "attribution": "fysical.ai / whatro.bot",
  "source": "https://github.com/fysical-ai/whatrobot-catalog",
  "url": "https://whatro.bot/robot/hello-robot-stretch-3/",
  "html": "https://whatro.bot/robot/hello-robot-stretch-3/",
  "taxonomy_version": "2026-01",
  "catalog_version": "2026-01",
  "handle": "hello-robot-stretch-3",
  "name": "Stretch 3",
  "kind": "robot",
  "manufacturer": {
    "handle": "hello-robot",
    "name": "Hello Robot",
    "country": "US"
  },
  "category": {
    "id": "rb-5",
    "full_name": "Robot > Mobile manipulator",
    "path": [
      {
        "id": "rb",
        "name": "Robot",
        "handle": "robot"
      },
      {
        "id": "rb-5",
        "name": "Mobile manipulator",
        "handle": "mobile-manipulator"
      }
    ],
    "url": "https://whatro.bot/robots/mobile-manipulator/"
  },
  "facts": {
    "wheels_or_tracks": "wheels",
    "legs": 0,
    "medium": "ground",
    "integrated_arm": true,
    "manipulates": true
  },
  "variants": [],
  "availability": "shipping",
  "release_year": 2024,
  "attributes": {
    "segment": [
      "research"
    ],
    "application": [
      "research-platform",
      "care-assistance"
    ],
    "autonomy": "semi-autonomous",
    "environment": [
      "indoor"
    ],
    "mass": 24.5,
    "payload": 2,
    "battery_runtime": 120,
    "sdk": [
      "python",
      "ros2"
    ],
    "drive_config": "differential",
    "axes": 5,
    "arm_count": 1
  },
  "summary": "Stretch 3 is a slim, 24.5 kg mobile manipulator for home-environment research: a differential- drive base with a vertical mast, a telescoping arm and the three-axis DexWrist 3 gripper that carries a depth camera, plus a rotating 3D camera on top of the mast. It is built around ROS 2 and Python with an Intel NUC 12 onboard, and is sold mainly to university and corporate research labs.",
  "links": {
    "product": "https://hello-robot.com/"
  },
  "offers": [
    {
      "seller": "Robotics Center",
      "url": "https://www.roboticscenter.ai/store/product/hello-robot-hello-robot-stretch-3",
      "price": 24950,
      "currency": "USD",
      "date": "2026-10-28",
      "region": "US",
      "affiliate": false,
      "note": "backorder; standard delivery 4–6 weeks"
    }
  ],
  "sources": [
    {
      "title": "Robotics Center Stretch 3 listing",
      "url": "https://www.roboticscenter.ai/store/product/hello-robot-hello-robot-stretch-3",
      "accessed": "2026-10-28",
      "for": [
        "price",
        "specs",
        "facts"
      ]
    },
    {
      "title": "The Robot Report: Stretch 3 launch (2024-02-15)",
      "url": "https://www.therobotreport.com/stretch-3-mobile-manipulator-hello-robot-designed-open-source-development/",
      "accessed": "2026-10-28",
      "for": [
        "price",
        "specs",
        "release_year",
        "manufacturer"
      ]
    }
  ],
  "unverified": [
    "reach",
    "open_source",
    "max_speed",
    "navigation"
  ],
  "notes": "Both sources give USD 24,950, matching the launch price reported in Feb 2024. battery_runtime: Robot Report says 'two to five hours' — lower bound recorded. axes 5 counts manipulator joints only (1 lift + 1 telescoping arm + 3 wrist); Robotics Center's '7 DOF' includes the 2 base DOF. Dimensions 33 x 34 x 141 cm. Robotics Center calls it 'open-source' but the manufacturer page was not fetched and the Robot Report describes an 'open platform' with community code, so open_source is omitted per brief. Reach / lift height not stated on either page. hello-robot.com blocks fetching.",
  "tags": [],
  "price": {
    "amount": 24950,
    "currency": "USD",
    "date": "2026-10-28",
    "seller": "Robotics Center",
    "url": "https://www.roboticscenter.ai/store/product/hello-robot-hello-robot-stretch-3"
  },
  "attribute_definitions": {
    "segment": {
      "name": "Segment",
      "type": "enum",
      "unit": null,
      "description": "Buyer groups that would plausibly buy this at list price."
    },
    "application": {
      "name": "Application",
      "type": "enum",
      "unit": null,
      "description": "What the product is marketed to do. Each value belongs to one application group."
    },
    "autonomy": {
      "name": "Autonomy",
      "type": "enum",
      "unit": null,
      "description": "Highest level of unsupervised operation supported out of the box."
    },
    "environment": {
      "name": "Environment",
      "type": "enum",
      "unit": null,
      "description": "Environments the product is rated to operate in."
    },
    "mass": {
      "name": "Mass",
      "type": "number",
      "unit": "kg",
      "description": "Product mass as specified."
    },
    "payload": {
      "name": "Payload",
      "type": "number",
      "unit": "kg",
      "description": "Rated payload. Arm: at the wrist. Mobile robot: on the deck. End-effector: held object."
    },
    "battery_runtime": {
      "name": "Battery runtime",
      "type": "number",
      "unit": "min",
      "description": "Manufacturer-rated runtime on one charge."
    },
    "sdk": {
      "name": "SDK",
      "type": "enum",
      "unit": null,
      "description": "Officially supported programming interfaces."
    },
    "drive_config": {
      "name": "Drive configuration",
      "type": "enum",
      "unit": null,
      "description": "How a ground base steers and propels itself."
    },
    "axes": {
      "name": "Axes",
      "type": "number",
      "unit": "count",
      "description": "Number of controlled axes. Arm: joints. Force-torque sensor: measured axes."
    },
    "arm_count": {
      "name": "Arm count",
      "type": "number",
      "unit": "count",
      "description": "Number of arms on the product."
    }
  }
}