When traveling in mainland of China and you probably want to get a SIM card and activate a data plan in order to use the internet and avoid hefty international data fees (despite the fact that there is a lot of free WIFI at the airports, hotels and restaurants). By the way, Internet access is now a basic human right according to the United Nations Human Rights Council (gizmodo.com 2017). It is easy to get a local SIM card in China, the two major telecommunication companies are China mobile (中国移动) and China Unicom (中国联通). 4G covers most of Chinese cities. 3G Coverage is over 99% of China population. Coverage is nearly everywhere except some rural part of Tibet & Xinjiang. A prepaid SIM card can be used immediately after simple activation.
Consolidated Report by ChinaAbout.net: According to the City Post (Dushikuaibao) report, Ma Ailun, a 23-year old China Southern Airlines flight attendant was electrocuted which using her iPhone 5 which was being charged when the tragedy happened. It is reported that the phone is a genuine iphone 5 bought less than one year ago.