Latest Facebook Lite 44 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 8.1.0; itel W5504 Build/OPM2.171019.012; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36[FBAN/EMA;FBLC/en_US;FBAV/44.0.0.5.69;] Android 8 P33
Mozilla/5.0 (Linux; Android 6.0; 4034X Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/44.0.0.5.69;] Android 6 One Touch Pixi 4 4"
Mozilla/5.0 (Linux; Android 4.4.4; SM-J100H Build/KTU84P) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/44.0.0.5.69;] Android 4 Galaxy J1