These electronic Polaroids are powered by your phone’s NFC chip

E Ink displays have expanded beyond e-readers. They're now used in digital photo frames, smartphones, and even the price tags found on grocery store shelves. VidaBay's Classic Plus NFC E-Ink Fridge Magnet - which looks like a Polaroid photo - features the same low power color E Ink screens used in those electronic price tags, but to display photos from your phone without the need for a battery. Th