Quick tip
Chrome has an emulate feature
right click > inspect elements
and then one of the options is Emulation
Pick your phone and then hit f5 to refresh

Wow, thanks!
Nice share thanks!
Combine that with a mobile useragent and you should be set.
should automatically spoof the agent
in network

I see something that says network speed like 3g etc
I wonder if you can use to replace carriers in out countries such as Vodafone / Uk etc
??
@georgetheman - Nope, almost certainly not. If your carrier matters to whatever you're viewing, the chances are that it's being detected from your IP address rather than anything your browser can influence.