Android 4.4.4 KitKat was released in 2014. In smartphone years, that makes it a legacy operating system. Over the decade, Meta (formerly Facebook) updated its core application to utilize newer Android APIs, enhanced security protocols, and heavier graphical frameworks.
If you are using a legacy device running , you likely cannot download the latest Facebook app directly from the Google Play Store because Google has officially dropped support for Play Services on this version. However, you can still access the social network by installing a compatible Facebook APK file. Best Version for Android 4.4.4: Facebook Lite Facebook Apk For Android 4.4.4