On Kickstarter, there is an iPhone 7/7 Plus case - InkCase i7, and the special thing is that the back of the case has an electronic ink screen.

At present, this mobile phone can only be compatible with 7/7 Plus, and their e-ink screen sizes are 4.3（ 800 x 480 ）And 5.2（ 960 x 540 ）Inch, adopting the Carta 1.2 standard, and using Bluetooth to connect with the iPhone, which will increase the thickness of the phone by 4.5mm after being put on（ IPhone 7 Plus version ）。

In addition to using this ink screen to view e-books, you can also use the screen of the phone case to preview the photo interface when taking a self portrait with the rear camera, so that the 7 million pixel front camera is not needed. Of course, it is estimated that the most important use for people to buy it is to read books, and the shell has good protection and can be waterproof!

The crowdfunding price of InkCase i7 in Kickstarter is $50 respectively（ About 338 yuan, small screen version ）, and $89（ About 602 yuan, large screen version ）。

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