Latest Mi Browser 8 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 8.1; pt-pt; VIVO V6 Build/MMB29M) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/46.0.2490.85 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.1.4 Android 8 V6
Mozilla/5.0 (Linux; U; Android 8.0.0; zh-cn; HM 2A Build/KTU84Q) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.8.7 Android 8 Redmi 2A
Mozilla/5.0 (Linux; U; Android 7.1.2; ru-ru; MI 5X Build/N2G47H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.7 Android 7 Mi 5X
Mozilla/5.0 (Linux; U; Android 7.1.2; ru-ru; MI 5C Build/N2G47J) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.9.6 Android 7 Mi 5c
Mozilla/5.0 (Linux; U; Android 7.1.2; ru-ru; MI 5C Build/N2G47J) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.9.1 Android 7 Mi 5c
Mozilla/5.0 (Linux; U; Android 7.1.2; ru-ru; MI 5C Build/N2G47J) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.8.2 Android 7 Mi 5c
Mozilla/5.0 (Linux; U; Android 7.1.2; pt-br; MI 5C Build/N2G47J) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.7 Android 7 Mi 5c
Mozilla/5.0 (Linux; U; Android 7.1.2; mk-mk; MI 5C Build/N2G47J) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.7 Android 7 Mi 5c
Mozilla/5.0 (Linux; U; Android 7.1.2; en-us; Redmi Y1 Build/N2G47H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.7 Android 7 Redmi Y1
Mozilla/5.0 (Linux; U; Android 7.1.2; en-us; Redmi Note 5A Prime Build/N2G47H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.7 Android 7 Redmi Note 5A Prime
Mozilla/5.0 (Linux; U; Android 7.1.2; en-us; MI 5X Build/N2G47H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.7 Android 7 Mi 5X
Mozilla/5.0 (Linux; U; Android 7.1.2; en-us; MI 5C Build/N2G47J) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.7 Android 7 Mi 5c
Mozilla/5.0 (Linux; U; Android 7.1.2; en-in; Redmi Y1 Lite Build/N2G47H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.7 Android 7 Redmi Y1 Lite
Mozilla/5.0 (Linux; U; Android 7.1.2; en-gb; Redmi Y1 Lite Build/N2G47H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.7 Android 7 Redmi Y1 Lite
Mozilla/5.0 (Linux; U; Android 7.1.2; en-gb; Redmi Y1 Build/N2G47H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.7 Android 7 Redmi Y1
Mozilla/5.0 (Linux; U; Android 7.1.1; zh-cn;OPPO A79 Build/N6F26Q) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.5.8 Android 7 A79
Mozilla/5.0 (Linux; U; Android 7.1.1; en-us; MI 5C Build/NMF26Q) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.7.2 Android 7 Mi 5c
Mozilla/5.0 (Linux; U; Android 7.0; zh-cn;TRT-AL00 Build/HUAWEITRT-AL006 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.5.8 Android 7 Enjoy 7 Plus
Mozilla/5.0 (Linux; U; Android 7.0; ru-ru; MI PAD 3 Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.5.14 Android 7 Mi Pad 3
Mozilla/5.0 (Linux; U; Android 7.0; pt-pt; MI PAD 3 Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/8.5.14 Android 7 Mi Pad 3