Latest Facebook Messenger 313 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; SM-J530F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 9 Galaxy J5 (2017)
Mozilla/5.0 (Linux; Android 9; Redmi 8 Build/PKQ1.190319.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.77 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 9 Redmi 8
Mozilla/5.0 (Linux; Android 9; Redmi 6A Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 9 Redmi 6A
Mozilla/5.0 (Linux; Android 9; moto g(6) play Build/PPPS29.55-35-18-7; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 9 Moto G6 Play
Mozilla/5.0 (Linux; Android 9; ASUS_X00TDB Build/PKQ1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 9 ZenFone Max Pro M1
Mozilla/5.0 (Linux; Android 9; ASUS_X00QD Build/PPR1.180610.009; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 9 ZenFone 5
Mozilla/5.0 (Linux; Android 9; AMN-LX9 Build/HUAWEIAMN-LX9; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 9 Y5 (2019)
Mozilla/5.0 (Linux; Android 9; AMN-LX9 Build/HUAWEIAMN-LX9; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.91 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 9 Y5 (2019)
Mozilla/5.0 (Linux; Android 9; 5048Y_EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 9 3X (2019)
Mozilla/5.0 (Linux; Android 8.1.0; SM-G610F Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 Galaxy J7 Prime
Mozilla/5.0 (Linux; Android 8.1.0; LG-Q710AL Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.77 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 Stylo 4
Mozilla/5.0 (Linux; Android 8.1.0; DUB-LX1 Build/HUAWEIDUB-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 Y7 (2019)
Mozilla/5.0 (Linux; Android 8.1.0; DRA-L21 Build/HUAWEIDRA-L21; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 Y5 (2018)
Mozilla/5.0 (Linux; Android 8.1.0; 5003D_EEA Build/OPM2.171019.012; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 1C (2019)
Mozilla/5.0 (Linux; Android 8.0.0; WAS-LX3 Build/HUAWEIWAS-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 P10 Lite
Mozilla/5.0 (Linux; Android 8.0.0; SM-J330FN Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/76.0.3809.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 Galaxy J3 (2017)
Mozilla/5.0 (Linux; Android 8.0.0; SM-G950F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/75.0.3770.143 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 Galaxy S8
Mozilla/5.0 (Linux; Android 8.0.0; SM-G930F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 Galaxy S7
Mozilla/5.0 (Linux; Android 8.0.0; SM-G570M Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 Galaxy J5 Prime
Mozilla/5.0 (Linux; Android 8.0.0; SM-A750F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.72 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/313.0.0.15.119;] Android 8 Galaxy A7 (2018)