Latest Facebook 109 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.3; en-us; GT-I9300T Build/JSS15J) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 4 Galaxy S III
Mozilla/5.0 (Linux; U; Android 4.2.2; pt-pt; ALCATEL ONE TOUCH 7041D Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.2 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 4 One Touch Pop C7 Dual SIM
Mozilla/5.0 (Linux; U; Android 4.2.2; es-us; GT-I9080L Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 4 Galaxy Grand
Mozilla/5.0 (Linux; U; Android 4.2.2; en-nz; GT-S7275T Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 4 Galaxy ACE 3
Mozilla/5.0 (Linux; U; Android 4.2.2; en-gb; SM-C105K Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 4 Galaxy S4 zoom
Mozilla/5.0 (Linux; U; Android 4.1.2; en-au; GT-I8730T Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 4 Galaxy Express
Mozilla/5.0 (Linux; U; Android 4.1.1; en-us; ZTE-Z993 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 4 Z993
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/109.0.0.15.71;] Android 4 X710a
Mozilla/5.0 (Linux; Android 7.0; G3121 Build/40.0.A.6.135; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 7 Xperia XA1
Mozilla/5.0 (Linux; Android 7.0; G3112 Build/40.0.A.6.175; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/62.0.3202.84 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 7 Xperia XA1
Mozilla/5.0 (Linux; Android 6.0; VFD 300 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/46.0.2490.76 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 6 Smart Mini 7
Mozilla/5.0 (Linux; Android 6.0; LG-H815 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 6 G4
Mozilla/5.0 (Linux; Android 6.0.1; SM-J500FN Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 6 Galaxy J5 (2015)
Mozilla/5.0 (Linux; Android 6.0.1; SM-J500F Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 6 Galaxy J5 (2015)
Mozilla/5.0 (Linux; Android 6.0.1; SM-J500F Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 6 Galaxy J5 (2015)
Mozilla/5.0 (Linux; Android 6.0.1; HTC 2PST2 Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/50.0.2661.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 6 2PST2
Mozilla/5.0 (Linux; Android 5.1; VF-696 Build/LMY47I; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 5 Smart Grand 6
Mozilla/5.0 (Linux; Android 5.1; NOS FIVE Build/LMY47D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/66.0.3359.126 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 5 Five
Mozilla/5.0 (Linux; Android 5.1; APACHE G6 Build/LMY47I) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.20.70;] Android 5 Apache G6
Mozilla/5.0 (Linux; Android 5.1; 5015D Build/LMY47I; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/51.0.2704.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/109.0.0.15.71;] Android 5 One Touch Pop 3 Dual SIM