Extending the reach
Finally, since we are talking about Xamarin, it is important to mention that Xamarin and/or Xamarin.Forms do not bind the developers to Android and iOS phone or tablet devices. By using Xamarin and Xamarin.Forms, developers can target devices varying from simple wearables such as smart watches to IoT devices and home appliances.
When developing applications for iOS- or Android-based appliances, exactly the same toolset can be used, while more specialized platforms (such as Tizen) can constitute a target platform, given that the .NET Standard implementation exists natively:
The Tizen implementation is also a good example of .NET being used by Xamarin.Forms and the Linux kernel.
As you can see, Xamarin and .NET provides the necessary infrastructure...