I'm also an old fart who wears relaxed fit jeans pretty much all the time, but some of them have much smaller pockets than others. And I'm 6'3", with a 38" wais

I'm also an old fart who wears relaxed fit jeans pretty much all the time, but some of them have much smaller pockets than others. And I'm 6'3", with a 38" waist, so it's not a matter of my tiny pants. However, it's not just a matter of "will this rectangle fit into this opening". Even my smallest pockets fit the phone. But even with my Nexus 5, if I have headphones plugged into the phone, walking up stairs feels precarious -- like I'm one wrong move away from snapping the headphone jack. I don't want to just fit my phone in my pocket. I want to be able to, for all intents and purposes, forget it's there if I want to. I don't think I could do that with a Nexus 6.