For phone cases, go to La Casa de las Carcasas
La Casa de las Carcasas is a shop at Madrid Atocha selling phone cases. You can literally find hundreds of cases for all the popular phones on the market. In addition to these, it also sells cases for a range of tablets too. The brand has stores across the country and boasts of having over 100,000 products. For more information on the store, visit: lacasadelascarcasas.es.