#inch nfc powered e paper

waveshare 7.5inch Passive NFC-Powered e-Paper Display Black/White e-Ink Screen, Wireless Powering and Data Transfer No Battery Required, Refresh by Smartphone with NFC Function or NFC Reader

4.2inch Passive NFC-Powered e-Paper Display Black/White e-Ink Screen, Wireless Powering and Data Transfer No Battery Required, Refresh by Smartphone with NFC Function or NFC Reader