E-ink technology is typically found in devices like the Amazon Kindle, and it is also a critical feature of the Qingping thermometer. I originally reviewed the Bluetooth version of this device a few years ago, but Qingping has since updated it with Thread support for Apple Home. I have been ret...
Source: [9to5Mac](https://9to5mac.com/2026/06/12/qingping-thermometer/)