Originally Posted by
javabytes
Extra data consumption caused purely by the fact that you're connected to a VPN is not substantial. What you're actually trying to do over that connection will be far more relevant to your level of data consumption, but that consumption would be the same whether you're connected to VPN or not.
Zero tech knowledge here, but I can verify that my data usage jumped >100% on my day to day data consumption needs when I started using a VPN (fairly recently). As an example, before the GFW started intermittently blocking google maps, I could navigate around Beijing and use ~3MB data (max). Now that I have to do it with VPN, exactly the same task uses nearly 10MB of data...
It's possible this is just a China thing, since I don't tend to use VPN when in other countries.
tb