Latest Facebook Messenger 150 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.2.2; pt-pt; GT-I9060 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 4 Galaxy Grand Neo
Mozilla/5.0 (Linux; U; Android 4.2.2; fr-fr; GT-S7582 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 4 Galaxy S DUOS 2
Mozilla/5.0 (Linux; Android 8.0.0; Mi A1 Build/OPR1.170623.026; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.123 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 8 Mi A1
Mozilla/5.0 (Linux; Android 7.1.1; VFD 710 Build/NMF26F; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 Smart V8
Mozilla/5.0 (Linux; Android 7.1.1; ONEPLUS A5010 Build/NMF26X; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.123 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 5T
Mozilla/5.0 (Linux; Android 7.1.1; ASUS_X00DD Build/NMF26F; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 ZenFone 3 Max
Mozilla/5.0 (Linux; Android 7.0; WAS-LX1A Build/HUAWEIWAS-LX1A; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.123 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 P10 Lite
Mozilla/5.0 (Linux; Android 7.0; WAS-LX1A Build/HUAWEIWAS-LX1A; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 P10 Lite
Mozilla/5.0 (Linux; Android 7.0; VTR-L09 Build/HUAWEIVTR-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.123 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 P10
Mozilla/5.0 (Linux; Android 7.0; SM-J530F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 Galaxy J5 (2017)
Mozilla/5.0 (Linux; Android 7.0; SM-G950F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.123 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 Galaxy S8
Mozilla/5.0 (Linux; Android 7.0; SM-G935F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.123 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 Galaxy S7 Edge
Mozilla/5.0 (Linux; Android 7.0; SM-G935F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 Galaxy S7 Edge
Mozilla/5.0 (Linux; Android 7.0; SM-G930F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 Galaxy S7
Mozilla/5.0 (Linux; Android 7.0; SM-A520F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.123 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 Galaxy A5 (2017)
Mozilla/5.0 (Linux; Android 7.0; SM-A320FL Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.123 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 Galaxy A3 (2017)
Mozilla/5.0 (Linux; Android 7.0; SLA-L22 Build/HUAWEISLA-L22; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 P9 Lite Mini
Mozilla/5.0 (Linux; Android 7.0; PRA-LX1 Build/HUAWEIPRA-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.123 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 P8 Lite (2017)
Mozilla/5.0 (Linux; Android 7.0; HUAWEI VNS-L31 Build/HUAWEIVNS-L31; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 P9 Lite
Mozilla/5.0 (Linux; Android 7.0; EVA-L09 Build/HUAWEIEVA-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.123 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/150.0.0.16.97;] Android 7 P9