To me, that just makes you more suspicious. Last time I had to cross borders CAN/USA/MEX, I just popped my SIM in an old Blackberry Q10 and connected it to a lightly-used email account. Made a few calls and texts in the days leading up to trip.

I reasoned that an old Blackberry is good because there really isn't much you can do with it beyond text/email/web. And it makes me look like a tech-illiterate luddite.