User Agent

Mozilla/5.0 (Linux; U; Android 7.1.1; zh-cn; OPPO R9sk Build/NMF26F) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.3521.30 MQQBrowser/9.6 Mobile Safari/537.36

This user agent belongs to Android WebView. Google Inc developed this Browser. This Browser run on Android and it renders web contents with Blink on general Mobile Phone.

Browser - Android WebView

Android WebView

Version89.0 @ 32 bit
DeveloperGoogle Inc
ParentAndroid WebView 89.0
Device TypeMobile Phone

Act as 

Crawler No
Fake No
Anonymized No

Device - Oppo

BrandOppo
ModelR9sk
Platform android 7.1 (32 bit) by Google Inc
Mobile Yes
Tablet No

Capabilities

Rendering EngineBlink by Google Inc (a WebKit Fork by Google)
Pointingtouchscreen
Javascript Yes
CSS Yes Version: 3
Cookies Yes
Tables Yes
Frames Yes
IFrames Yes
Background Sounds No
Java Applets No
VB Script No
Activex No