B smsung z1 mobile may be used for mobile phone h3se 4 or 3 days of the last 4 days or longer for the playstore to be downloaded from the app, you will be able to download whatsapp facebook .The battery of Sumasung Z1 is very low. Initially, it was a little fine but the pajar became very fragile in a few days, the mobil has a lot of roasting.