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

They feature a color E Ink screen that only updates when you wirelessly upload a new photo.They feature a color E Ink screen that only updates when you wirelessly upload a new photo.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.The small digital photo frames are now available globally in white, red, or yellow through VidaBay’s online store for $35.99 each (currently discounted to $29.99), or as a three-pack for $99.99 (now discounted to $86.99).One of the many unique benefits of E Ink’s e-paper display technology is that it only uses power when changing the text or image on screen. These small displays take advantage of that and don’t include a battery. Instead, all the power needed to update their E Ink screens comes from the NFC chip on your smartphone when you’re wirelessly transferring images using VidaBay’s mobile app. Once a new image is displayed, it will be there indefinitely.There is one definite downside to VidaBay’s E Ink Fridge Magnets. As Good E-Reader points out, the color screen they use, the E Ink Spectra 3100, is specifically designed for retail use and features just four colored particles: black, yellow, red, and white. So when compared to products like the Aura Ink digital photo frame, which uses an E Ink Spectra 6 panel capable of reproducing thousands of shades, the accuracy of the color reproduction on VidaBay’s smaller alternative will be lacking.A free daily digest of the news that matters most.This is the title for the native ad