User Agent

Dalvik/2.1.0 (Linux; U; Android 13; M2102J20SG Build/TKQ1.221013.002) [FBAN/Orca-Android;FBAV/525.0.0.44.108;FBPN/com.facebook.orca;FBLC/bg_BG;FBBV/792261016;FBCR/o2 - de;FBMF/Xiaomi;FBBD/POCO;FBDV/M2102J20SG;FBSV/13;FBCA/arm64-v8a:null;FBDM/{density=3.0,width=1080,height=2167};FB_FW/1;]

This user agent belongs to Facebook App. Facebook developed this Application. This Application run on Android and it renders web contents with WebKit on general Mobile Phone.

Application - Facebook App

Facebook App

Version? @ 32 bit
DeveloperFacebook
ParentFacebook App for Android
Device TypeMobile Phone

Act as 

Crawler No
Fake No
Anonymized No

Device - Generic_Android

BrandGeneric_Android
ModelM2102J20SG
Platform android (32 bit) by Google Inc
Mobile Yes
Tablet No

Capabilities

Rendering EngineWebKit by Apple Inc (For Google Chrome, iOS (including both mobile Safari, WebViews within third-party apps, and web clips), Safari, Arora, Midori, OmniWeb, Shiira, iCab since version 4, Web, SRWare Iron, Rekonq, and in Maxthon 3.)
Pointingtouchscreen
Javascript Yes
CSS Yes Version: 3
Cookies Yes
Tables Yes
Frames Yes
IFrames Yes
Background Sounds No
Java Applets Yes
VB Script No
Activex No