# Magnetic Mountable eInk Devices The Seeed Studio reTerminal Sticky Has an ESP32 Microcontroller By Michael Hemsworth | Published 2026-07-31 | Tech Source: Trend Hunter, https://www.trendhunter.com/trends/seeed-studio-reterminal-sticky References: [liliputing](https://liliputing.com/reterminal-sticky-is-a-50-e-ink-gadget-with-flashable-firmware-that-can-be-a-refrigerator-sign-or-a-pocket-sized-ereade/) & [seeedstudio](https://www.seeedstudio.com/sticky/playground/)  The [Seeed Studio](https://www.trendhunter.com/trends/efortune-cookie) reTerminal Sticky is a small, versatile E Ink device engineered with versatility in mind to work seamlessly as a refrigerator sign, a [portable eReader](https://www.trendhunter.com/trends/xteink-x4-pro) and more. The device features a 3.97-inch E Ink touchscreen display that's powered by the [ESP32](https://www.trendhunter.com/trends/lilygo-tdeck-max) microcontroller and can be managed via a smartphone to send and receive data wirelessly, while also offering support for data transfer via USB-C. The unit is parked with a magnet on the rear that will allow it to be mounted on a refrigerator as a family-friendly communication device. The Seeed Studio reTerminal Sticky offers support for a microSD storage card to accommodate use as an eReader to maximize its ability to be regularly used. The device is available now for preorder for $50. ## Trend Insights (Trend Hunter) - Score: 8.6/10 - Popularity: 92% | Activity: 81% | Freshness: 85% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Tech](https://www.trendhunter.com/tech) > [Gadgets](https://www.trendhunter.com/gadgets) ## Key Themes ### What's Driving This Trend - **Magnetic Smart Displays:** Compact E Ink screens with magnetic mounting create new possibilities for low-power household dashboards, shared notes and ambient information surfaces. - **Modular E Ink Gadgets:** Battery-efficient touchscreen devices with microcontroller support point to flexible hardware formats that can shift between signage, reading and connected utility use cases. - **Phone-managed Iot Interfaces:** Smartphone-controlled displays expand the role of everyday mobile devices as configuration hubs for simple connected products in homes, offices and retail settings. ### Who This Affects Most - **Consumer Electronics:** Affordable multifunction E Ink devices suggest a growing market for compact connected hardware that blends entertainment, communication and practical information display. - **Smart Home:** Magnet-mounted communication screens introduce lightweight alternatives to voice assistants and tablets for family coordination, reminders and household data sharing. - **Digital Signage:** Portable low-power displays with wireless updating capabilities offer fresh potential for small-scale signage across refrigerators, desks, shelves and temporary commercial spaces. ## Related on Trend Hunter - [Keychain E-Ink Readers](https://www.trendhunter.com/trends/pala-one.md) - [Electronic Paper Display Solutions](https://www.trendhunter.com/trends/electronic-paper-display.md) - [Modern Pocket E-Readers](https://www.trendhunter.com/trends/xteink.md) - [Supplemental Smartphone eReaders](https://www.trendhunter.com/trends/xteink-s4.md) - [Ambient Computing Lifestyle Displays](https://www.trendhunter.com/trends/inklet-eink-display.md) - [Mindful Smartphone Reading Devices](https://www.trendhunter.com/trends/xteink-x4.md) - [Pocket E-Reader Attachments](https://www.trendhunter.com/trends/xteink-x3.md) - [Pocket Writing Devices](https://www.trendhunter.com/trends/the-pocketmage-pda.md) - [Portable Writing Devices](https://www.trendhunter.com/trends/micro-journal-rev61-mini.md)