Latest Opera Mobile 19 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 9; Redmi 6A Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.99 Mobile Safari/537.36 OPR/19.0.2254.108260 Android 9 Redmi 6A
Mozilla/5.0 (Linux; U; Android 9; 5024D Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.92 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 9 1S
Mozilla/5.0 (Linux; U; Android 8.1.0; DRA-LX2 Build/HUAWEIDRA-LX2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/88.0.4324.181 Mobile Safari/537.36 OPR/19.0.2254.108259 Android 8 Y5 Prime (2018)
Mozilla/5.0 (Linux; U; Android 8.1.0; DRA-LX2 Build/HUAWEIDRA-LX2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.198 Mobile Safari/537.36 OPR/19.0.2254.108259 Android 8 Y5 Prime (2018)
Mozilla/5.0 (Linux; U; Android 8.1.0; CPH1909 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/76.0.3809.111 Mobile Safari/537.36 OPR/19.0.2254.108259 Android 8 A5S
Mozilla/5.0 (Linux; U; Android 8.0.0; ATU-L22 Build/HUAWEIATU-L22; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/131.0.6778.81 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 8 Y6 (2018)
Mozilla/5.0 (Linux; U; Android 7.1.1; SM-J510FN Build/NMF26X; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 7 Galaxy J5 (2016)
Mozilla/5.0 (Linux; U; Android 7.0; SM-G920F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.99 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 7 Galaxy S6
Mozilla/5.0 (Linux; U; Android 7.0; itel A40 Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 7 A40
Mozilla/5.0 (Linux; U; Android 7.0; 5060 Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/84.0.4147.125 Mobile Safari/537.36 OPR/19.0.2254.108260 Android 7 Unknown
Mozilla/5.0 (Linux; U; Android 6.0; TECNO W2 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/52.0.2743.98 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 6 W2
Mozilla/5.0 (Linux; U; Android 6.0; MYA-L22 Build/HUAWEIMYA-L22; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 OPR/19.0.2254.108259 Android 6 Y5 (2017)
Mozilla/5.0 (Linux; U; Android 6.0.1; Wileyfox Swift Build/MHC19Q; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/54.0.2840.68 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 6 Swift
Mozilla/5.0 (Linux; U; Android 6.0.1; SM-J510FN Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.124 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 6 Galaxy J5 (2016)
Mozilla/5.0 (Linux; U; Android 6.0.1; SM-G532G Build/MMB29T; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 6 Galaxy J2 Prime
Mozilla/5.0 (Linux; U; Android 6.0.1; SM-G532G Build/MMB29T; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 OPR/19.0.2254.108259 Android 6 Galaxy J2 Prime
Mozilla/5.0 (Linux; U; Android 6.0.1; SM-G532F Build/MMB29T; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 OPR/19.0.2254.108247 Android 6 Galaxy Grand Prime Plus
Mozilla/5.0 (Linux; U; Android 6.0.1; Redmi 3S Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 6 Redmi 3S
Mozilla/5.0 (Linux; U; Android 5.1; SMART_Surf_4G Build/LMY47D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/54.0.2840.68 Mobile Safari/537.36 OPR/19.0.2254.108926 Android 5 Smart Surf 4G
Mozilla/5.0 (Linux; U; Android 5.1; Micromax Q327 Build/LMY47D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/46.0.2490.76 Mobile Safari/537.36 OPR/19.0.2254.108260 Android 5 Bolt Q327