Perfectly holds my 12 mm thick phone horizontally. I've uploaded the step and f3d files, feel free to modify them to fit the thickness of your phone.
Does not require any special print settings. I printed the top part with 0.2 mm layer height and the bottom part with 0.3 mm, using variable layerheight.
Use a piece of filament for the hinge. If the holes are too tight (2mm) plese modify the models or use a finer layerheight.
The author marked this model as their own original creation.