Some time ago I designed a simple smartphone stand that can be used with small and large phones. My Samsung A5 with attached bumper (5.2") fits nicely and even my large Nexus 6P (5.7") does not fall over. The maximum allowed phone thickness is 10mm.
I made three versions of this stand:
- The small one will print on small printers with a build space of 100x100x100 (e.g. Fabrikator II Mini). But then an USB connector will not fit under the stand.
- The large one needs a build space of 100x100x120 and then there should be enough space for an USB connector under your phone.
- The extra large one needs a build space of 130x130x140 and is meant for tablets.
All version have an 'antiroll' feature that prevents the stand to tip over if you hit the top of a large phone on the uppermost edge.
This model must be printed with support.