Latest Facebook 75 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 7.0; de-at; SAMSUNG SM-N950UZSATFN Build/NEK74K;) AppleWebKit/631.07 (KHTML, like Gecko) Version/43 Mobile Safari/631.07 [FB_IAB/FB4A;FBAV/75.1.6.21.79;] Android 7 Galaxy Note 8
Mozilla/5.0 (Linux; U; Android 7.0; de-at; SAMSUNG SM-N950UZKAVZW Build/NYM45H;) AppleWebKit/482.18 (KHTML, like Gecko) Version/40 Mobile Safari/482.18 [FB_IAB/FB4A;FBAV/75.2.4.42.27;] Android 7 Galaxy Note 8
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; GT-I9082 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 4 Galaxy Grand Duos
Mozilla/5.0 (Linux; U; Android 4.1.2; es-us; G527-U081 Build/HuaweiG527-U081) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 4 Ascend G527
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; ZTE-Z740 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 4 Z740
Mozilla/5.0 (Linux; U; Android 4.1.2; en-au; HTC_0P6A1 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 4 0P6A1
Mozilla/5.0 (Linux; U; Android 4.1.2; en-; GT-S6790N Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FBAN/InternetOrgApp;FBAV/75.0.0.0.15;] Android 4 Galaxy FAME Lite with NFC
Mozilla/5.0 (Linux; U; Android 4.1.2; af-; GT-S6790 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FBAN/InternetOrgApp;FBAV/75.0.0.0.15;] Android 4 Galaxy FAME Lite with NFC
Mozilla/5.0 (Linux; U; Android 4.1.1; en-us; ZTE-Z992 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 4 Avail 2
Mozilla/5.0 (Linux; U; Android 4.0.3; en-ca; HTC-X710a Build/IML74K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 4 X710a
Mozilla/5.0 (Linux; Android 8.1.0; vivo 1811 Build/OPM1.171019.026; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36 [FBAN/InternetOrgApp;FBAV/75.0.0.0.15;] Android 8 Y91
Mozilla/5.0 (Linux; Android 8.1.0; Redmi 5 Plus Build/OPM1.171019.019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/96.0.4664.104 Mobile Safari/537.36 [FBAN/InternetOrgApp;FBAV/75.0.0.0.15;] Android 8 Redmi 5 Plus
Mozilla/5.0 (Linux; Android 8.0.0; moto e5 plus Build/OPPS27.91-179-8-7; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.101 Mobile Safari/537.36 [FBAN/InternetOrgApp;FBAV/75.0.0.0.15;] Android 8 Moto E5 Plus
Mozilla/5.0 (Linux; Android 7.0; CPN-AL00 Build/HUAWEICPN-AL00; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FBAN/InternetOrgApp;FBAV/75.0.0.0.15;] Android 7 MediaPad M3 Lite
Mozilla/5.0 (Linux; Android 6.0; XT1069 Build/MPB24.65-34-3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 6 Moto G
Mozilla/5.0 (Linux; Android 5.1; QTAIR7 Build/LMY47D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/50.0.2661.86 Safari/537.36 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 5 Ellipsis 10
Mozilla/5.0 (Linux; Android 5.1; LG-AS811 Build/LMY47D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/50.0.2661.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 5 AS811
Mozilla/5.0 (Linux; Android 5.1.1; SM-N9208 Build/LMY47X; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/44.0.2403.117 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 5 Galaxy Note 5 Duos
Mozilla/5.0 (Linux; Android 5.1.1; SM-N910F Build/LMY47X; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/47.0.2526.100 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 5 Galaxy Note 4
Mozilla/5.0 (Linux; Android 5.1.1; SM-G531F Build/LMY48B; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/75.0.0.23.69;] Android 5 Galaxy Grand Prime