Device Information

Importing Modules

import device from '@system.device'

Developers need to declare the application's access permission for watch.permission.DEVICE_INFO in the manifest.json file.

API Definitions

`getInfo`

method

Get basic information about the device. The meanings of the property fields in the returned object are:

brand: Device brand name.
manufacturer: Device manufacturer.
model: Device model.
product: Device product code.
osType: Operating system name.
osVersionName: Operating system version name.
brand: Device brand name.
brand: Device brand name.
brand: Device brand name.

Batch get device identification information. The types parameter specifies the categories of information to retrieve, which is an Array object composed of 'device', 'mac', 'user', or 'advertising' elements. Depending on the value of types, the meanings of the fields in the returned object's properties are:

type: .
device: Unique device identifier, exists only when types contains the 'device' element.
mac: MAC address of the device, exists only when types contains the 'mac' element.
user: Unique user identifier, exists only when types contains the 'user' element.
advertising: Unique advertising identifier, exists only when types contains the 'advertising' element.

`getDeviceId`
method

Gets the unique device identifier.

`getSerial`
method

Gets the device serial number.

`getTotalStorage`
method

Gets the total size of the storage space, in bytes.

`getAvailableStorage`
method

Gets the available size of the storage space, in bytes.

Tips

On the emulator, the values returned by the getTotalStorage() and getAvailableStorage() methods may be inaccurate and will not change as the storage space changes.

`screenWidth`
get

The screen width of the device, in pixels.

`screenHeight`
get

The screen height of the device, in pixels.

`screenDensity`
get

The screen pixel density of the device, in $\rm PPI$ .

`screenShape`
get

The screen shape of the device. The values are as follows:

'rect': The device has a rectangular screen.
'circle': The device has a circular screen.

`memoryProfile`
get

Gets the memory profile attribute of the device. This attribute is the JavaScript API version of the memory-profile media query attribute. For details, please refer to the documentation for media query attributes.

Unlike the memory-profile media query attribute, the value of the memoryProfile attribute is an integer, and the unit is fixed as $\rm KiB$ .