diff --git a/src/ua-parser.js b/src/ua-parser.js
index fba26d0..bd7ec39 100755
--- a/src/ua-parser.js
+++ b/src/ua-parser.js
@@ -54,6 +54,7 @@
         LG      = 'LG',
         MICROSOFT = 'Microsoft',
         MOTOROLA  = 'Motorola',
+        ONEPLUS = 'OnePlus',
         OPERA   = 'Opera',
         OPPO    = 'OPPO',
         SAMSUNG = 'Samsung',
@@ -701,7 +702,7 @@
             ], [MODEL, [VENDOR, SHARP], [TYPE, SMARTTV]],[
             /(bravia[\w ]+)( bui|\))/i                                              // Sony
             ], [MODEL, [VENDOR, SONY], [TYPE, SMARTTV]], [
-            /(mitv-\w{5}) bui/i                                                 // Xiaomi
+            /(mi(tv|box)-?\w+) bui/i                                            // Xiaomi
             ], [MODEL, [VENDOR, XIAOMI], [TYPE, SMARTTV]], [
             /Hbbtv.*(technisat) (.*);/i                                         // TechniSAT
             ], [VENDOR, MODEL, [TYPE, SMARTTV]], [
diff --git a/test/device-test.json b/test/device-test.json
index e705d25..e56a555 100644
--- a/test/device-test.json
+++ b/test/device-test.json
@@ -4157,6 +4157,24 @@
             "type": "smarttv"
         }
     },
+    {
+        "desc": "Xiaomi Mi TV",
+        "ua": "Mozilla/5.0 (Linux; Android 9; MiTV4I Build/PI; en-in) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36 Puffin/7.8.3.40913AP",
+        "expect": {
+            "vendor": "Xiaomi",
+            "model": "MiTV4I",
+            "type": "smarttv"
+        }
+    },
+    {
+        "desc": "Xiaomi Mi Box",
+        "ua": "Mozilla/5.0 (Linux; Android 9; MIBOX3 Build/PI; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/119.0.6045.193 Mobile Safari/537.36",
+        "expect": {
+            "vendor": "Xiaomi",
+            "model": "MIBOX3",
+            "type": "smarttv"
+        }
+    },
     {
         "desc": "Kindle Fire HD",
         "ua": "Mozilla/5.0 (Linux; U; Android 4.0.3; en-us; KFTT Build/IML74K) AppleWebKit/535.19 (KHTML, like Gecko) Silk/3.4 Mobile Safari/535.19 Silk-Accelerated=true",