Latest Facebook Messenger 291 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; VKY-L29 Build/HUAWEIVKY-L29; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 P10 Plus
Mozilla/5.0 (Linux; Android 9; vivo 1904 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.66 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Y12
Mozilla/5.0 (Linux; Android 9; vivo 1904 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Y12
Mozilla/5.0 (Linux; Android 9; vivo 1902 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Y17
Mozilla/5.0 (Linux; Android 9; vivo 1901 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.86 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Y15
Mozilla/5.0 (Linux; Android 9; TA-1053 Build/PKQ1.181105.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 5
Mozilla/5.0 (Linux; Android 9; STF-L09 Build/HUAWEISTF-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Honor 9
Mozilla/5.0 (Linux; Android 9; SM-S367VL Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.0.0.20.114;] Android 9 Galaxy J3 Orbit
Mozilla/5.0 (Linux; Android 9; SM-N950F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Galaxy Note 8
Mozilla/5.0 (Linux; Android 9; SM-J737V Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Galaxy J7 (2018)
Mozilla/5.0 (Linux; Android 9; SM-J730F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Galaxy J7 Pro
Mozilla/5.0 (Linux; Android 9; SM-J330FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.0.0.20.114;] [ip:109.116.44.60] Android 9 Galaxy J3 (2017)
Mozilla/5.0 (Linux; Android 9; SM-J330F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.0.0.20.114;] Android 9 Galaxy J3 (2017)
Mozilla/5.0 (Linux; Android 9; SM-G950W Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Galaxy S8
Mozilla/5.0 (Linux; Android 9; SM-G950F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.66 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.0.0.20.114;] Android 9 Galaxy S8
Mozilla/5.0 (Linux; Android 9; SM-G950F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.0.0.20.114;] Android 9 Galaxy S8
Mozilla/5.0 (Linux; Android 9; SM-G611F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Galaxy On7 Prime
Mozilla/5.0 (Linux; Android 9; SM-A307GT Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Galaxy A30s
Mozilla/5.0 (Linux; Android 9; Redmi Y2 Build/PKQ1.181203.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.2.0.22.114;] Android 9 Redmi Y2
Mozilla/5.0 (Linux; Android 9; Redmi Note 8T Build/PKQ1.190616.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.66 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/291.0.0.20.114;] Android 9 Redmi Note 8T