<ion-header>
  <ion-navbar  color="primary">
    <ion-title>Dispositivo por Defecto</ion-title>
  </ion-navbar>
</ion-header>

<ion-content padding>
  <ion-list radio-group>
  <ion-item *ngFor="let device of devices" >
    <ion-label>{{device.name}}</ion-label>
    <ion-radio (click)="selectRadio(device)"></ion-radio>
  </ion-item>
</ion-list>
</ion-content>
