Thanks Leo for your valuable tips! I will travel to Shanghai in Oct and plan to purchase a physical sim card from China Unicom in Shanghai as I want to have a local Chinese tel #. It is not a must but it seems to be more convenient to have one. I have set up the Alipay app on my cell using a north american tel # and my credit card. But I will wait till I arrive in Shanghai and get the local Chinese tel # to set up other apps. Any tips or comments from you or other you tube viewers? Thanks. w.