Latest Opera Mobile 56 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 9; ZTE Blade A7 2019 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.91 Mobile Safari/537.36 OPR/56.0.2254.57357 Android 9 Blade A7 (2019)
Mozilla/5.0 (Linux; U; Android 9; ZTE Blade A3 2020RU Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 OPR/56.1.2254.57583 Android 9 Blade A3 (2020)
Mozilla/5.0 (Linux; U; Android 9; XQ-AD51 Build/57.0.A.2.280; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.101 Mobile Safari/537.36 OPR/56.1.2254.57583 Android 9 Xperia L4
Mozilla/5.0 (Linux; U; Android 9; U693CL Build/U693CL_01.02.01; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.101 Mobile Safari/537.36 OPR/56.1.2254.57583 Android 9 UMX U693CL
Mozilla/5.0 (Linux; U; Android 9; TECNO CC6 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.116 Mobile Safari/537.36 OPR/56.1.2254.57583 Android 9 Camon 12 Air
Mozilla/5.0 (Linux; U; Android 9; SM-A305F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.101 Mobile Safari/537.36 OPR/56.1.2254.57583 Android 9 Galaxy A30
Mozilla/5.0 (Linux; U; Android 9; myPhone_Pocket_Pro Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 OPR/56.0.2254.57357 Android 9 Pocket Pro
Mozilla/5.0 (Linux; U; Android 9; motorola one power Build/PPT29.74-41; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.91 Mobile Safari/537.36 OPR/56.0.2254.57357 Android 9 One Power
Mozilla/5.0 (Linux; U; Android 9; MI CC 9 Build/PKQ1.181121.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 OPR/56.0.2254.57357 Android 9 Mi CC 9
Mozilla/5.0 (Linux; U; Android 9; LM-X440IM Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.88 Mobile Safari/537.36 OPR/56.0.2254.57321 Android 9 W30
Mozilla/5.0 (Linux; U; Android 9; LLD-AL20 Build/HONORLLD-AL20; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.91 Mobile Safari/537.36 OPR/56.0.2254.57357 Android 9 Honor 9i
Mozilla/5.0 (Linux; U; Android 9; Lenovo L18081 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/71.0.3578.99 Mobile Safari/537.36 OPR/56.0.2254.57357 Android 9 A5s
Mozilla/5.0 (Linux; U; Android 9; itel W6501 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 OPR/56.0.2254.57357 Android 9 P36
Mozilla/5.0 (Linux; U; Android 9; itel W6004 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.116 Mobile Safari/537.36 OPR/56.0.2254.57357 Android 9 A56 LTE
Mozilla/5.0 (Linux; U; Android 9; itel W6003 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.101 Mobile Safari/537.36 OPR/56.1.2254.57583 Android 9 A55
Mozilla/5.0 (Linux; U; Android 9; itel L6501 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.116 Mobile Safari/537.36 OPR/56.1.2254.57583 Android 9 Vision 1 Plus
Mozilla/5.0 (Linux; U; Android 9; Infinix X626 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.101 Mobile Safari/537.36 OPR/56.1.2254.57583 Android 9 S4
Mozilla/5.0 (Linux; U; Android 9; Infinix X610B Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 OPR/56.1.2254.57583 Android 9 Note 6
Mozilla/5.0 (Linux; U; Android 9; Hammer_IRON_3 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.101 Mobile Safari/537.36 OPR/56.1.2254.57583 Android 9 Iron 3
Mozilla/5.0 (Linux; U; Android 8.1.0; ZTE Blade A0722 Build/OPM1.171019.026; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 OPR/56.0.2254.57357 Android 8 Blade A7 Vita