Starting from the iPhone 6, each generation of iPhone will have a small screen version and big screen version, with the latest iPhone 8 and iPhone 8 Plus as an example, both not only the screen size, camera, battery life are all different.
For small screen users, the iPhone 8 4.7-inch screen, although one-hand operation is very friendly, but its life is unsatisfactory, while the iPhone 8 Plus does not have this problem, although the iPhone 8 Plus screen size is larger, but Its equipped with nearly 3000mAh battery, with iOS power optimization, heavy users a day without problems.
The small screen iPhone is not so lucky, According to Phone Arena reported that B & H accessories manufacturers to sell iPhone 7 smart battery box, as shown in the figure it can be set like a protective sleeve can be set on the iPhone 7, but There will be a beautiful humpback.
Its built-in 2365mAh battery, coupled with the iPhone 7 1960mAh battery, heavy use completely able to sustain a day, not only iPhone 7, iPhone 8 is also true.
This accessory price is 49 US dollars, about 300 yuan.
