Solar panels aren't efficient enough yet if you'd want them to be built onto the phone. Then the phone would need to be designed around it. As you may know letting your phone sit in the sun isn't a good idea.
True...but there are "solar" panels that will charge under artificial lighting. I have one in a watch that I own.
However, the amount of juice necessary to charge a tiny watch battery would be, as you point out, insufficient to charge a battery as large as that in the phone.
True...but there are "solar" panels that will charge under artificial lighting. I have one in a watch that I own.
However, the amount of juice necessary to charge a tiny watch battery would be, as you point out, insufficient to charge a battery as large as that in the phone.