Sharp and AU (KDDI) announced that they will be launching a solar mobile phone that is also waterproof. Although no model name has been announced, the solar mobile phone allows for 1 minute of talk time and 2 hours of standby time after charging in the sun for just 10 minutes.
So that means one hour in the sun will give you 6 minutes of talk time. Not that great. But that’s not how you should see this development. Think of it this way: it allows you to keep charging the phone while you’re away from your desk and out in the sun. Just make sure to pull the solar phone out of your pocket or purse. I do like the fact that it is waterproof.
Source: Akihabara News