Nexus 4 Quick Release Plate for Tripod Mount

Nexus 4 sized holder with integrated quick release base.

Phone slides in from side - it's a good firm grip.

The version I printed was overkill, but works. I would recommend trying one of the half-sized ones, which will leave your side buttons totally accessible.

Choose a version with your correct base plate orientation. (I didn't! That's why my tilt handle is off to the side in the photo.)

I paramaterized the dimensions of the base plate, so hopefully you can adapt this to different sized bases with the same basic design.