Hi we are in Australia and my University student daughter is heading to China at the end of November for 8 weeks. She arrives into Shanghai but then spend most of the next 6 weeks at Shandong University before heading to Beijing for the last few days.
We have been doing a bit of research re sims for her iphone 4 (Optus post paid), we have just applied for it to be unlocked and this should be done in the next 72 hours.
From my research and from what I have read here, China Unicom has the best coverage but you have to cut the sim down to micro size which frightens me a bit. On ebay there is a China Unicom pre-paid card.
I know it is probably over priced but I thought it might just be easier to buy it now so she would be good to go once she arrived.
Any advice welcome.