Hard plastic case, it is only covering on the side of phone. No full covering for top and bottom (the top and bottom exposed). The plastic material does not support wireless charging.

Rubber case, full top and bottom coverage aside from three openings on bottom for stereo speakers and lightning port. It's a rubber sleeve that goes around it and then plastic on the back for the image. The regular rubber material does not support wireless charging.

Rubber glass case is rubber case with wireless charging support. Glass is on the back of the case.