{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "DeviceMetadata",
  "type": "object",
  "description": "Metadata about the device used to write a review.",
  "properties": {
    "manufacturer": {
      "type": "string",
      "description": "Device manufacturer (e.g., Samsung, Google)."
    },
    "deviceClass": {
      "type": "string",
      "description": "Device class (e.g., phone, tablet)."
    },
    "screenWidthPx": {
      "type": "integer",
      "description": "Screen width in pixels."
    },
    "screenHeightPx": {
      "type": "integer",
      "description": "Screen height in pixels."
    },
    "nativePlatform": {
      "type": "string",
      "description": "Comma-separated list of native platforms (e.g., armeabi-v7a, arm64-v8a)."
    },
    "productName": {
      "type": "string",
      "description": "Device product name."
    },
    "screenDensityDpi": {
      "type": "integer",
      "description": "Screen density in DPI."
    },
    "glEsVersion": {
      "type": "integer",
      "description": "OpenGL ES version."
    },
    "cpuModel": {
      "type": "string",
      "description": "CPU model identifier."
    },
    "cpuMake": {
      "type": "string",
      "description": "CPU manufacturer."
    },
    "ramMb": {
      "type": "integer",
      "description": "Device RAM in megabytes."
    }
  }
}