For devices running Android 4.4.2 KitKat, you can use SmartTube (formerly SmartTubeNext) to watch YouTube. While many modern apps require newer Android versions, SmartTube maintains support for Android 4.2 and above. Key Features for Legacy Devices
If you want, I can:
If you see "There was a problem parsing the package," it usually means the APK version is too new for Android 4.4.2. In this case, you may need to search for an older "Legacy" version of SmartTube Next. Play Services: smart tube apk android 4.4 2