Latest Facebook 197 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android/5.1; es-es; AVVIO_L800 Build/LMY47D) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/39.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 5 L800
Mozilla/5.0 (Linux; Android 9; SM-J330FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/96.0.4664.104 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 9 Galaxy J3 (2017)
Mozilla/5.0 (Linux; Android 8.1.0; ZB602KL Build/OPM1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/68.0.3440.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 ZenFone Max Pro M1
Mozilla/5.0 (Linux; Android 8.1.0; SNE-LX3 Build/HUAWEISNE-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Mate 20 Lite
Mozilla/5.0 (Linux; Android 8.1.0; SM-J730GM Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Galaxy J7 Pro
Mozilla/5.0 (Linux; Android 8.1.0; SM-J701M Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Galaxy J7 Core
Mozilla/5.0 (Linux; Android 8.1.0; JKM-LX3 Build/HUAWEIJKM-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Y9 (2019)
Mozilla/5.0 (Linux; Android 8.1.0; EML-L09 Build/HUAWEIEML-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 P20
Mozilla/5.0 (Linux; Android 8.1.0; COL-L29 Build/HUAWEICOL-L29; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Honor 10
Mozilla/5.0 (Linux; Android 8.1.0; CAG-L23 Build/HUAWEICAG-L23; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Y5 Lite (2018)
Mozilla/5.0 (Linux; Android 8.1.0; CAG-L03 Build/HUAWEICAG-L03; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Y5 Lite (2018)
Mozilla/5.0 (Linux; Android 8.0.0; WAS-LX3 Build/HUAWEIWAS-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 P10 Lite
Mozilla/5.0 (Linux; Android 8.0.0; WAS-LX3 Build/HUAWEIWAS-LX3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/67.0.3396.87 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 P10 Lite
Mozilla/5.0 (Linux; Android 8.0.0; VTR-L29 Build/HUAWEIVTR-L29; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 P10
Mozilla/5.0 (Linux; Android 8.0.0; VTR-L09 Build/HUAWEIVTR-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 P10
Mozilla/5.0 (Linux; Android 8.0.0; SM-J600G Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Galaxy J6
Mozilla/5.0 (Linux; Android 8.0.0; SM-J400M Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Galaxy J4
Mozilla/5.0 (Linux; Android 8.0.0; SM-J400F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Galaxy J4
Mozilla/5.0 (Linux; Android 8.0.0; SM-C7000 Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Galaxy C7
Mozilla/5.0 (Linux; Android 8.0.0; SM-A600GN Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/197.0.0.46.98;] Android 8 Galaxy A6