gareth41:
That's a very expensive way to do it if you're going to be in the country for a while like I was, almost a month. Data is very cheap in China, using a local sim card or connecting to wifi is just like anywhere else, follow all the usual security precautions and you'll be fine. Outline uses end to end encryption with packet obfuscation to evade the GFW. I kept my NZ sim card with me for critical stuff like banking.
I would rather pay $9 per day than risk it anything
then again, I would have no desire to go to China anyway