AT&T has lit up a major upgrade to its 5G network that you may not notice on your phone immediately, but which may already have improved service to your Apple Watch. It should also unlock non-trivial ...

I've been a Verizon and T-Mobile customer for years, but I've always been curious about AT&T's mobile service and coverage. Now I can try it - and for free. On Tuesday, AT&T kicked off a new wireless ...