Latest Mi Browser 15 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 9; zh-cn; MI 8 UD Build/PKQ1.180729.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.9.16 swan-mibrowser Android 9 Mi 8 UD
Mozilla/5.0 (Linux; U; Android 12; zh-cn; M2012K11C Build/SKQ1.211006.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.7.18 Android 12 Redmi K40 Pro
Mozilla/5.0 (Linux; U; Android 12; zh-cn; 2201123C Build/SKQ1.211006.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.5.33 Android 12 12
Mozilla/5.0 (Linux; U; Android 12; zh-cn; 2201122C Build/SKQ1.211006.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.9.7 Android 12 12 Pro
Mozilla/5.0 (Linux; U; Android 12; zh-cn; 2201122C Build/SKQ1.211006.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.9.10 swan-mibrowser Android 12 12 Pro
Mozilla/5.0 (Linux; U; Android 12; zh-cn; 2201122C Build/SKQ1.211006.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.5.33 Android 12 12 Pro
Mozilla/5.0 (Linux; U; Android 12; zh-cn; 2109119BC Build/SKQ1.211006.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.7.18 Android 12 Civi
Mozilla/5.0 (Linux; U; Android 11; zh-tw; Mi9 Pro 5G Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.5.8 Android 11 Mi 9 Pro 5G
Mozilla/5.0 (Linux; U; Android 11; zh-cn; Redmi K30i 5G Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.3.4 Android 11 Redmi K30i 5G
Mozilla/5.0 (Linux; U; Android 11; zh-cn; Redmi K30 Pro Zoom Edition Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.147 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.0.10 Android 11 Redmi K30 Pro Zoom Edition
Mozilla/5.0 (Linux; U; Android 11; zh-cn; Redmi K30 Pro Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.3.16 Android 11 Redmi K30 Pro
Mozilla/5.0 (Linux; U; Android 11; zh-cn; Mi9 Pro 5G Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.6.12 Android 11 Mi 9 Pro 5G
Mozilla/5.0 (Linux; U; Android 11; zh-cn; Mi9 Pro 5G Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.5.8 Android 11 Mi 9 Pro 5G
Mozilla/5.0 (Linux; U; Android 11; zh-cn; Mi9 Pro 5G Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.3.10 Android 11 Mi 9 Pro 5G
Mozilla/5.0 (Linux; U; Android 11; zh-cn; MI CC9 Pro Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.7.18 Android 11 Mi CC 9 Pro
Mozilla/5.0 (Linux; U; Android 11; zh-cn; MI 9 ROY Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.147 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.1.12 Android 11 Mi 9 ROY
Mozilla/5.0 (Linux; U; Android 11; zh-cn; MI 9 Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.3.16 Android 11 Mi 9
Mozilla/5.0 (Linux; U; Android 11; zh-cn; Mi 10 Pro Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.5.8 Android 11 Mi 10 Pro
Mozilla/5.0 (Linux; U; Android 11; zh-cn; Mi 10 Pro Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.5.12 Android 11 Mi 10 Pro
Mozilla/5.0 (Linux; U; Android 11; zh-cn; Mi 10 Pro Build/RKQ1.200826.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/15.4.12 Android 11 Mi 10 Pro