I’ve always appreciated the design of the Amazon Kindle’s interface. Though it is an electronic device, Amazon designed the screen so that it looks more like a page in book than a display screen on a device. It helps alleviate some of the eye strain that comes from using devices like phones or iPads for long periods of time, allowing the user to read for hours on end. It’s not something I would’ve considered if I had designed the product, but is a well-thought-out touch.