Latest Facebook Lite 503 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; Redmi 6A Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/138.0.7204.179 Mobile Safari/537.36[FBAN/EMA;FBLC/or_IN;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 9 Redmi 6A
Mozilla/5.0 (Linux; Android 9; SM-T865 Build/PPR1.180610.011) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36[FBAN/EMA;FBLC/ID_ID;FBAV/503.0.0.10.107;FB_FW/1;FBBV/890307704;FBDM/DisplayMetricsdensity1.75, width720, height1471, scaledDensity1.75, xdpi269.21, ydpi269.21;] Android 9 Galaxy Tab S6 10.5"
Mozilla/5.0 (Linux; Android 12; M2010J19SG Build/SKQ1.211202.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.120 Mobile Safari/537.36[FBAN/EMA;FBLC/vi_VN;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 12 Redmi 9T
Mozilla/5.0 (Linux; Android 16; SM-A176U Build/BP2A.250605.031.A3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.120 Mobile Safari/537.36[FBAN/EMA;FBLC/es_LA;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 16 SM-A176U
Mozilla/5.0 (Linux; Android 15; SM-A055F Build/AP3A.240905.015.A2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/147.0.7727.111 Mobile Safari/537.36[FBAN/EMA;FBLC/en_US;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 15 Galaxy A05
Mozilla/5.0 (Linux; Android 14; CPH2591 Build/UP1A.230620.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/146.0.7680.177 Mobile Safari/537.36[FBAN/EMA;FBLC/id_ID;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 14 A18
Mozilla/5.0 (Linux; Android 15; CPH2639 Build/AP3A.240617.008; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/147.0.7727.56 Mobile Safari/537.36[FBAN/EMA;FBLC/es_ES;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 15 A3 Pro 5G
Mozilla/5.0 (Linux; Android 12; TECNO BF7 Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/147.0.7727.55 Mobile Safari/537.36[FBAN/EMA;FBLC/id_ID;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 12 Pop 7 Pro
Mozilla/5.0 (Linux; Android 10; CPH2185 Build/QP1A.190711.020; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/144.0.7559.132 Mobile Safari/537.36[FBAN/EMA;FBLC/id_ID;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 10 A15
Mozilla/5.0 (Linux; Android 10; TECNO KE6 Build/QP1A.190711.020; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/142.0.7444.102 Mobile Safari/537.36[FBAN/EMA;FBLC/en_GB;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 10 Spark 6 Air
Mozilla/5.0 (Linux; Android 14; moto e15 Build/UUTBS34.40-41-3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/146.0.7680.164 Mobile Safari/537.36[FBAN/EMA;FBLC/en_GB;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 14 Moto E15
Mozilla/5.0 (Linux; Android 14; TECNO KL4 Build/UP1A.231005.007; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/146.0.7680.119 Mobile Safari/537.36[FBAN/EMA;FBLC/pt_PT;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 14 Pop 9
Mozilla/5.0 (Linux; Android 13; SM-G781U Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/146.0.7680.119 Mobile Safari/537.36[FBAN/EMA;FBLC/en_US;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 13 Galaxy S20 FE 5G
Mozilla/5.0 (Linux; Android 11; SM-A205F Build/RP1A.200720.012; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/146.0.7680.119 Mobile Safari/537.36[FBAN/EMA;FBLC/tr_TR;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 11 Galaxy A20
Mozilla/5.0 (Linux; Android 13; Infinix X6525 Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/146.0.7680.119 Mobile Safari/537.36[FBAN/EMA;FBLC/th_TH;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 13 Smart 8
Mozilla/5.0 (Linux; Android 11; SM-G398FN Build/RP1A.200720.012; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.159 Mobile Safari/537.36[FBAN/EMA;FBLC/hu_HU;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 11 Galaxy Xcover 4s
Mozilla/5.0 (Linux; Android 8.1.0; SM-A260F Build/OPR6; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/138.0.7204.179 Mobile Safari/537.36[FBAN/EMA;FBLC/tr_TR;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 8 Galaxy A2 Core
Mozilla/5.0 (Linux; Android 11; moto g power (2021) Build/RZBS31.Q2-143-27-25; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/146.0.7680.119 Mobile Safari/537.36[FBAN/EMA;FBLC/en_US;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 11 Moto G Power (2021)
Mozilla/5.0 (Linux; Android 11; SM-A205G Build/RP1A.200720.012; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.159 Mobile Safari/537.36[FBAN/EMA;FBLC/es_LA;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 11 Galaxy A20
Mozilla/5.0 (Linux; Android 16; SM-S166V Build/BP2A.250605.031.A3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/142.0.7444.102 Mobile Safari/537.36[FBAN/EMA;FBLC/en_US;FBAV/503.0.0.10.107;FBCX/modulariab;] Android 16 Galaxy A16 5G