I don’t use a ring of any kind on my phone. This is so that I am always on offense and never defense.
I have two iPhones, one for day and one for the night.
Innovation often starts with the ordinary. They simply took what was "normal", and added a twist. They added an innovation. The innovation solved a key problem of the "normal" use case that we all already understood.
Simple and intuitive design is what inspires and drives me.
Products should speak for themselves, and marketing should support that.
My best entrepreneurial advice is to start.