Is power button loose really a defect and it should be tight solid that can't be moved slightly? Just wondering cause I tried my sister iPhone 6 and some of the Apple store demo sets and they were loose too.
It doesn't make any rattle noise when I shake it, can only hear it if I tried to move the power button left and right with my thumb. Home button is solid though. Don't think I want to exchange another model and get the same problem again.