Earlier quoted context omitted.
A kindle/book/tablet seems superior in this regard. You get your entertainment for the plane and you don't have to worry about unpacking it on the plane, being precious with a very expensive piece of equipment and they are negligible in terms of lugging around/storing in your hotel. You can even reasonably use these if you have a little down time waiting in a line, during quick trips, will be without power for a whil…
The last time I remember flying with a tablet, it was so suspicious that airport security hauled me into a private room and interrogated me about it. They questioned why I didn't take it out of my bag for the scanner (since it was a 'laptop'). They asked what it was. They made me turn it on and use it. They were extremely rude and kept me holed up for a long time while investigating it. So I don't fly with a tablet a…
That said, security rules vary from airport to airport. SFO with TSA Pre is practically a no-op, but CDG security requires that you remove from carry-on any device with a >20cm dimension!