Latest Facebook 98 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.3; en-us; ZTE-Z669 Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 Z669
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; Micromax A47 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 A47
Mozilla/5.0 (Linux; U; Android 4.2.1; en-in; Micromax A250 Build/JOP40D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 A250
Mozilla/5.0 (Linux; U; Android 4.1.2; en-nz; GT-I8160L Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 Galaxy Ace 2
Mozilla/5.0 (Linux; U; Android 4.1.2; en-gb; LG-E460f Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 Optimus L5 II
Mozilla/5.0 (Linux; U; Android 4.1.2; en-au; LG-P713GO Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 P713GO
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; LG-US730 Build/IMM76L) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 US730
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; LG-MS870 Build/IMM76L) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 Sprint 4G
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; LG-LS840 Build/ZVK.IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 Viper 4G LTE
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; LG-AS730 Build/IMM76L) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 AS730
Mozilla/5.0 (Linux; U; Android 4.0.4; en-ca; SGH-S730M Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 4 Galaxy Discover
Mozilla/5.0 (Linux; U; Android 4.0.3; en-us; KFOT Build/IML74K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Safari/534.30 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Fire OS 3 Kindle Fire
Mozilla/5.0 (Linux; Android 7.0; Pixel C Build/NRD91D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.124 Safari/537.36 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 7 Pixel C
Mozilla/5.0 (Linux; Android 6.0; vivo 1713 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 6 V5s
Mozilla/5.0 (Linux; Android 6.0; vivo 1601 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.106 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 6 V5
Mozilla/5.0 (Linux; Android 6.0.1; SM-N930R4 Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/54.0.2840.61 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 6 Galaxy Note 7
Mozilla/5.0 (Linux; Android 6.0.1; SAMSUNG-SM-N930A Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.124 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 6 Galaxy Note 7
Mozilla/5.0 (Linux; Android 6.0.1; LG-VS985 Build/MOB30Z; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/51.0.2704.106 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 6 G3
Mozilla/5.0 (Linux; Android 6.0.1; KYV35 Build/207.0.2d00; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/49.0.2623.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 6 Torque G02
Mozilla/5.0 (Linux; Android 5.1; vivo 1707 Build/LMY47I; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/95.0.4638.74 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/98.0.0.18.70;] Android 5 Y51 (2015)