When I updated to my current smartphone, my old homemade tripod adapter was no longer an option. Research led me to this nifty little adapter, the Joby JM1-01WW GripTight Mount (Black).
I already own an extremely well-made tripod from REI, so I did not buy the accompanying Joby JM2-01WW GripTight Micro Stand (Black). However, as you can see from the photo below, the stand makes for a compact little package when combined with the mount. These two products are pricey if you buy both of them, but the reality is that they are small enough to slip in a pocket. If you’re like me, a tripod and mount combination that are too large to slip in a pocket are likely to be left at home, and won’t be of any use! At the bottom, I’m posting some images of the mount (that’s all I bought), in combination with my old REI mini-tripod.