Latest Facebook Messenger 315 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; vivo 1723 Build/PKQ1.190118.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 V9
Mozilla/5.0 (Linux; Android 9; SM-N960F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Galaxy Note 9
Mozilla/5.0 (Linux; Android 9; SM-J701F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Galaxy J7 Core
Mozilla/5.0 (Linux; Android 9; SM-J530F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/81.0.4044.138 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Galaxy J5 (2017)
Mozilla/5.0 (Linux; Android 9; SM-G950F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] 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/91.0.4472.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Galaxy S8
Mozilla/5.0 (Linux; Android 9; SM-A600FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Galaxy A6
Mozilla/5.0 (Linux; Android 9; SM-A600FN 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/315.0.0.13.119;] Android 9 Galaxy A6
Mozilla/5.0 (Linux; Android 9; SM-A530F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Galaxy A8
Mozilla/5.0 (Linux; Android 9; SM-A105F 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/315.0.0.13.119;] Android 9 Galaxy A10
Mozilla/5.0 (Linux; Android 9; Redmi Note 8T Build/PKQ1.190616.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Redmi Note 8T
Mozilla/5.0 (Linux; Android 9; Redmi Note 8 Pro Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/88.0.4324.93 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Redmi Note 8 Pro
Mozilla/5.0 (Linux; Android 9; Redmi Note 7 Build/PKQ1.180904.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Redmi Note 7
Mozilla/5.0 (Linux; Android 9; MRD-LX3 Build/HUAWEIMRD-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Y6 (2019)
Mozilla/5.0 (Linux; Android 9; INE-LX2 Build/HUAWEIINE-LX2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.75 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Nova 3i
Mozilla/5.0 (Linux; Android 9; ASUS_X00TDB Build/PKQ1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/88.0.4324.93 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 ZenFone Max Pro M1
Mozilla/5.0 (Linux; Android 9; ANE-LX3 Build/HUAWEIANE-L03; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 P20 Lite
Mozilla/5.0 (Linux; Android 9; AMN-LX9 Build/HUAWEIAMN-LX9; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 9 Y5 (2019)
Mozilla/5.0 (Linux; Android 8.1.0; vivo Y91 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 8 Y91
Mozilla/5.0 (Linux; Android 8.1.0; vivo 1820 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/315.0.0.13.119;] Android 8 Y91i