{
  "license": "CC BY 4.0",
  "attribution": "fysical.ai / whatro.bot",
  "source": "https://github.com/fysical-ai/whatrobot-catalog",
  "url": "https://whatro.bot/robot/unitree-z1/",
  "html": "https://whatro.bot/robot/unitree-z1/",
  "taxonomy_version": "2026-01",
  "catalog_version": "2026-01",
  "handle": "unitree-z1",
  "name": "Unitree Z1",
  "kind": "robot",
  "manufacturer": {
    "handle": "unitree",
    "name": "Unitree Robotics",
    "country": "CN"
  },
  "category": {
    "id": "rb-1-1",
    "full_name": "Robot > Arm > Articulated arm",
    "path": [
      {
        "id": "rb",
        "name": "Robot",
        "handle": "robot"
      },
      {
        "id": "rb-1",
        "name": "Arm",
        "handle": "arm"
      },
      {
        "id": "rb-1-1",
        "name": "Articulated arm",
        "handle": "articulated"
      }
    ],
    "url": "https://whatro.bot/robots/arm/articulated/"
  },
  "facts": {
    "fixed_base": true,
    "manipulates": true,
    "arm_kinematics": "articulated"
  },
  "variants": [
    {
      "name": "Z1 Air",
      "note": "4.3 kg, 2 kg payload"
    },
    {
      "name": "Z1 Pro",
      "note": "4.5 kg, 3–5 kg payload, higher-performance components, air cooling"
    }
  ],
  "availability": "shipping",
  "attributes": {
    "segment": [
      "research",
      "education"
    ],
    "application": [
      "research-platform"
    ],
    "autonomy": "teleoperated",
    "environment": [
      "indoor"
    ],
    "mass": 4.5,
    "payload": 3,
    "axes": 6,
    "reach": 740,
    "repeatability": 0.1,
    "arm_count": 1
  },
  "summary": "The Unitree Z1 is a compact six-axis research arm weighing about 4.5 kg, with harmonic-drive joints, 740 mm reach and roughly 0.1 mm repeatability. It communicates over RS-485/Ethernet, runs from 24 V and offers position and force control with collision detection through an open SDK on Ubuntu. The Air and Pro versions differ in payload (2 kg vs 3–5 kg) and cooling.",
  "links": {
    "product": "https://www.unitree.com/z1"
  },
  "offers": [
    {
      "seller": "STEMfinity",
      "url": "https://stemfinity.com/products/unitree-z1-robotic-arms",
      "price": 13387.5,
      "currency": "USD",
      "date": "2026-10-28",
      "region": "US",
      "affiliate": false,
      "note": "'from' price covering Z1 Air / Z1 Pro; no per-variant price shown"
    }
  ],
  "sources": [
    {
      "title": "STEMfinity Unitree Z1 listing",
      "url": "https://stemfinity.com/products/unitree-z1-robotic-arms",
      "accessed": "2026-10-28",
      "for": [
        "specs",
        "facts",
        "price",
        "variants"
      ]
    }
  ],
  "unverified": [
    "release_year",
    "sdk"
  ],
  "notes": "Unverified (free text): whether Unitree itself still lists the Z1 (vs. D1); mass/payload of the configuration priced. Could not confirm from a fetched Unitree page whether the Z1 is still sold directly or has been replaced by the D1 (unitree.com blocks fetching; RobotShop's Z1 Pro page returned an error). The Z1 is still listed by a US reseller (STEMfinity) with no discontinuation note, so availability is recorded as shipping. mass/payload in attributes are the Z1 Pro figures (payload lower bound). The listing says 'open SDK, Ubuntu' but names no language, so `sdk` is omitted. links.product is the manufacturer URL from the group C pass (not fetched).",
  "tags": [],
  "price": {
    "amount": 13387.5,
    "currency": "USD",
    "date": "2026-10-28",
    "seller": "STEMfinity",
    "url": "https://stemfinity.com/products/unitree-z1-robotic-arms"
  },
  "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."
    },
    "axes": {
      "name": "Axes",
      "type": "number",
      "unit": "count",
      "description": "Number of controlled axes. Arm: joints. Force-torque sensor: measured axes."
    },
    "reach": {
      "name": "Reach",
      "type": "number",
      "unit": "mm",
      "description": "Maximum reach of the arm."
    },
    "repeatability": {
      "name": "Repeatability",
      "type": "number",
      "unit": "mm",
      "description": "Position repeatability as specified."
    },
    "arm_count": {
      "name": "Arm count",
      "type": "number",
      "unit": "count",
      "description": "Number of arms on the product."
    }
  }
}