# wx.getSystemInfo(Object object)
Acquire system information
# Parameter
# Object object
| property | type | default value | optional | description | version |
|---|---|---|---|---|---|
| success | function | no | 接口调用成功的回调函数 | ||
| fail | function | no | 接口调用失败的回调函数 | ||
| complete | function | no | 接口调用结束的回调函数（调用成功、失败都会执行） |
# object.Success Callback
Parameter
Object res
| property | type | description | version |
|---|---|---|---|
| brand | string | Phone brand | 1.5.0 |
| model | string | Phone model | |
| pixelRatio | number | Device pixel ratio | |
| screenWidth | number | Screen width | 1.1.0 |
| screenHeight | number | Screen height | 1.1.0 |
| windowWidth | number | Usable window width | |
| windowHeight | number | Usable window height | |
| statusBarHeight | number | Status bar height | 1.9.0 |
| language | string | WeChat settings language | |
| version | string | WeChat version number | |
| system | string | OS version | |
| platform | string | Client platform | |
| fontSizeSetting | number | User font size setting. Subject to settings under 'Me > Settings > General > Text Size' (in px). | 1.5.0 |
| SDKVersion | string | Client base library version | 1.1.0 |
| benchmarkLevel | number | (Android only) Performance level. -2 or 0: This device cannot run the Mini Game; -1: Unknown performance; >=1: The higher is the value, the better is the device performance (Currently, the highest value is 50) | 1.8.0 |