Latest Facebook 85 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.3; es-us; ZTE-Z777 Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 Z777
Mozilla/5.0 (Linux; U; Android 4.3; en-us; ZTE-Z777 Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 Z777
Mozilla/5.0 (Linux; U; Android 4.2.2; es-es; Micromax A47 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 A47
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; ZTE-Z995 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 Z995
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; LG-D520 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 D520
Mozilla/5.0 (Linux; U; Android 4.1.2; da-mx; LG-E425f Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 E425f
Mozilla/5.0 (Linux; U; Android 4.1.1; pt-pt; Vodafone 875 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.1 Mobile Safari/534.30 SVN/110HGG1 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 Smart Mini
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; HUAWEI M868 Build/HuaweiM868) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 M868
Mozilla/5.0 (Linux; Android 6.0; LG-H525n Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/51.0.2704.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 6 G4c
Mozilla/5.0 (Linux; Android 5.1; XT1025 Build/LPCS23.13-34.8-3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/42.0.2311.138 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 5 XT1025
Mozilla/5.0 (Linux; Android 5.1.1; SM-G531F Build/LMY48B; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/51.0.2704.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 5 Galaxy Grand Prime
Mozilla/5.0 (Linux; Android 5.0; SM-G900F Build/LRX21T; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/62.0.3202.84 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 5 Galaxy S5
Mozilla/5.0 (Linux; Android 5.0; SELFIX_SLASH6 Build/LRX21M) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/37.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 5 Slash 6
Mozilla/5.0 (Linux; Android 5.0; SELFIX_SLASH6 Build/LRX21M) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/37.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.0.38;] Android 5 Slash 6
Mozilla/5.0 (Linux; Android 5.0.2; SM-G530FZ Build/LRX22G; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/52.0.2743.98 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 5 Galaxy Grand Prime
Mozilla/5.0 (Linux; Android 4.4.4; HUAWEI G620 Build/HuaweiG620S-L03) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 G620
Mozilla/5.0 (Linux; Android 4.4.4; G620S-L01 Build/HuaweiG620S-L01) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 Ascend G620S
Mozilla/5.0 (Linux; Android 4.4.4; D2203 Build/18.5.C.0.19) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 Xperia E3
Mozilla/5.0 (Linux; Android 4.4.2; SM-C115W Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 Galaxy K zoom
Mozilla/5.0 (Linux; Android 4.4.2; LG-X130g Build/KOT49H.V10a) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/85.0.0.15.70;] Android 4 L45