This year during 2015 International CES, GoldKey is going to announce the Secure Communicator, a luxury smart watch that's also a stand-alone cell phone. The really exceptional part is that the watch includes dual-factor authentication with an encryption key that's managed in a USB key that's held by the watch's owner. What that means is that if the feds want data communicated through the cell phone, they're going to have to come to the watch's owner instead of to the wireless provider. No more finding out later that the security of your communications may have been breached because your wireless provider has already handed over your data in response to a subpoena you knew nothing about. Don't imagine it's cheap, but real protection never is.
Read more about it here and see it at CES.