[rll]

I know it is anecdotal, but I have never seen even the slightest hint of anyone having their devices closely looked at entering China. At least not in the 72/144 hour visa-free line that I have been using for the past couple of years. This visa-free entry is aimed at business travelers so perhaps there is less scrutiny there.

[Bakary]

I've had the same experience as well. Ironically, the only place where I've ever been scrutinized or directly searched is the US.

Short of being some sort of China-focused activist, you'd have to try real hard to get Chinese law enforcement to care about what you're doing.