Example of how to get informations from device in Xamarin.Forms applications - http://julianocustodio.com/DeviceInfo

MainPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:local="clr-namespace:DemoDeviceInfo"
             x:Class="DemoDeviceInfo.MainPage">
    <StackLayout HorizontalOptions="Center" VerticalOptions="Center">
        <Label x:Name="DeviceName" />
        <Label x:Name="Id" />
        <Label x:Name="Manufacturer" />
        <Label x:Name="Model" />
        <Label x:Name="Platform" />
        <Label x:Name="Version" />
    </StackLayout>
</ContentPage>