What was the last dumb phone you had before your first smartphone?
I rocked a Samsung Alias 2 for 4 years before I got an iPhone 5. The e-ink keyboard was awesome how it changed when you flipped the screen open to portrait or landscape.
I had one and it was great. I rode a scooter everywhere at the time, and I could pull this out of my pocket, let it spring open and stick it up inside my helmet for some easy one hand to hands free calls.