Latest Facebook 263 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; ZTE Blade A5 2019 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Blade A5 (2019)
Mozilla/5.0 (Linux; Android 9; ZTE 2050RU Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/88.0.4324.152 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Blade 20 Smart
Mozilla/5.0 (Linux; Android 9; ZTE 2050RU Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.141 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Blade 20 Smart
Mozilla/5.0 (Linux; Android 9; ZTE 2050RU Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.101 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Blade 20 Smart
Mozilla/5.0 (Linux; Android 9; VFD 730 Build/PKQ1.190202.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.101 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Smart V10
Mozilla/5.0 (Linux; Android 9; STF-L09 Build/HUAWEISTF-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.90 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Honor 9
Mozilla/5.0 (Linux; Android 9; SNE-LX1 Build/HUAWEISNE-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/76.0.3809.89 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Mate 20 Lite
Mozilla/5.0 (Linux; Android 9; SM-S767VL Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy J7 Crown
Mozilla/5.0 (Linux; Android 9; SM-S757BL Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy J7 Crown
Mozilla/5.0 (Linux; Android 9; SM-S367VL Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy J3 Orbit
Mozilla/5.0 (Linux; Android 9; SM-S260DL Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy J2 Core
Mozilla/5.0 (Linux; Android 9; SM-S205DL Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy A20
Mozilla/5.0 (Linux; Android 9; SM-S102DL Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy A10e
Mozilla/5.0 (Linux; Android 9; SM-N950U1 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy Note 8
Mozilla/5.0 (Linux; Android 9; SM-N950U Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy Note 8
Mozilla/5.0 (Linux; Android 9; SM-J737V Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy J7 (2018)
Mozilla/5.0 (Linux; Android 9; SM-J737T Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy J7 (2018)
Mozilla/5.0 (Linux; Android 9; SM-J737R4 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy J7 (2018)
Mozilla/5.0 (Linux; Android 9; SM-J737P Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy J7 (2018)
Mozilla/5.0 (Linux; Android 9; SM-J400F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/263.0.0.46.121;] Android 9 Galaxy J4