Portable Phone/Tablet stand

It's not fully tested yet but I think it should be good enough like it is you can even charge your phone in the upright position since there is a lot of height (clearance for the charging connector).

Print the stand flat as shown in the images, with the infill direction in perpendicular to the movement of the hinge (see image).

Use PETG and hydrate the part after printing, just by leaving it a day in a bucket of water. In this way you will make the part less brittle. Then fold along the seam and you can snap the holder close this way it will not open in your bag.