For the best experience on Android 4.1.2, follow these recommendations: What operating systems are supported by the Facebook app?
: It is optimized for devices with as little as 2GB of RAM or less, preventing the "lag" common on older Jelly Bean handsets. facebook lite apk android 412 high quality
He visited APKMirror to find a version compatible with his "Jelly Bean" API 16. For the best experience on Android 4