Latest iOS 11 user agents:

User Agent Browser Device
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.6764.1907 Mobile Safari/537.36 Chrome Mobile 48 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2219.1064 Mobile Safari/537.36 Chrome Mobile 40 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.9327.1810 Mobile Safari/537.36 Chrome Mobile 55 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.3325.1850 Mobile Safari/537.36 Chrome Mobile 57 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.6061.1579 Mobile Safari/537.36 Chrome Mobile 49 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.1069.1005 Mobile Safari/537.36 Chrome Mobile 51 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.7997.1945 Mobile Safari/537.36 Chrome Mobile 48 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.9462.1464 Mobile Safari/537.36 Chrome Mobile 56 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.5001.1163 Mobile Safari/537.36 Chrome Mobile 58 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.9997.1462 Mobile Safari/537.36 Chrome Mobile 51 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.8479.1515 Mobile Safari/537.36 Chrome Mobile 46 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.8783.1291 Mobile Safari/537.36 Chrome Mobile 43 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.8452.1912 Mobile Safari/537.36 Chrome Mobile 40 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.9901.1802 Mobile Safari/537.36 Chrome Mobile 54 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.5514.1188 Mobile Safari/537.36 Chrome Mobile 44 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.8903.1576 Mobile Safari/537.36 Chrome Mobile 49 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.1172.1016 Mobile Safari/537.36 Chrome Mobile 42 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.8130.1325 Mobile Safari/537.36 Chrome Mobile 51 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.3542.1447 Mobile Safari/537.36 Chrome Mobile 45 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.5322.1211 Mobile Safari/537.36 Chrome Mobile 55 iPhone