Every iPhone has certain type of battery which provides reasonable good battery life to the phones. The Apple iPhone 7 is the latest entrant in the market and if the buzzword is true then you will not have to charge this iPhone.
According to the reports Apple has got a patent right for placing the solar cells in the iPhone. These solar cells will be placed beneath the touchscreen – this is like those which are used in the iPad, iPhones, Macbook trackpad or Apple Watch display.
According to the reports from the US patent there is a hidden solar panel which will keep on charging the iPhone automatically throughout the day. But the only problem is that Apple is still at a very immature stage about the technology and hence to needs to work out proper strategy for the same.