| deviceScaleFactor | <code>optional</code> | number | Specify device scale factor. See [devicePixelRatio](https://developer.mozilla.org/en-US/docs/Web/API/Window/devicePixelRatio) for more info. | <code>1</code> |
| hasTouch | <code>optional</code> | boolean | Specify if the viewport supports touch events. | <code>false</code> |
| height | | number | The page height in pixels. | |
| isLandscape | <code>optional</code> | boolean | Specifies if the viewport is in landscape mode. | <code>false</code> |
| isMobile | <code>optional</code> | boolean | Whether the <code>meta viewport</code> tag is taken into account. | <code>false</code> |
| width | | number | The page width in pixels. | |