The reTerminal Sticky is a compact gadget measuring 106 x 65.5 x 7.3mm, and weighing 70 grams. It features a 3.97 inch, 800 x 480 pixel E Ink display with support for 4 shades of gray. What sets it apart is not just its price but the inclusion of built-in magnets that let users snap it onto fridges or other metal surfaces.
Designed to be versatile, the reTerminal Sticky can act as a digital signage tool, displaying notes or weather updates. It can also function like a tiny eReader thanks to its battery-powered operation. For developers and DIYers, the device can be flashed with third-party firmware, including the widely used CrossPoint Reader, which enhances functionality for devices such as the Xteink series.
But it’s not without trade-offs. The reTerminal Sticky has a glossy screen that may reflect glare in bright environments, which could be an issue for avid readers. There’s no built-in frontlight, relying instead on ambient lighting for readability. The device runs on an ESP32-S3R8 microcontroller, supports Bluetooth 5.0 and WiFi 4, and uses a 750 mAh battery that charges via USB Type-C.
It also features a temperature and humidity sensor, 6-axis IMU for motion tracking, a microphone for voice input, and an audio buzzer. Three physical buttons control power and navigation. Despite these features, early users have noted that the hardware feels a bit low-cost, and the software can be unpredictable. Still, as long as expectations align with a $50 price tag, the device may satisfy a niche but growing market.