You generally can't use an Apple iPhone on a cell network if it's never been activated with such a network, although once it is activated you can remove your SIM card or simply never connect to the ...

One of the nifty things about Google’s Project Fi wireless network is that the company doesn’t charge anything extra for tethering, so if you want to use your Android smartphone as a mobile hotspot, ...

All modern iPhones and iPads now use nano-SIM cards. Unfortunately, this can be a bit of a problem for anyone switching from an older device, because the nano-SIM is much smaller than the micro-SIMs ...