# Customizable Productivity Smart Displays The TRMNL E Ink Display Has an Open Source Firmware By Michael Hemsworth | Published 2025-06-18 | Tech Source: Trend Hunter, https://www.trendhunter.com/trends/trmnl-e-ink-display References: [liliputing](https://liliputing.com/trmnl-is-a-139-wifi-enabled-e-ink-display-with-open-source-firmware-you-can-also-make-one-from-a-jailbroken-kindle/) & [usetrmnl](https://usetrmnl.com/)  The TRMNL E Ink display is a productivity-supporting smart device engineered with versatility in mind to let users customize its functionality to their specific requirements. The unit maintains a minimalist design that's integrated with a [7.5-inch E Ink display](https://www.trendhunter.com/trends/paperless-paper-7inch-e-ink-frame) that can be completely customized to the preferences of the user thanks to its [open source software](https://www.trendhunter.com/trends/krono). The unit offers support for WiFi connectivity and will deliver up to three months of use per charge of the internal battery to make it great for mobile use. The TRMNL E Ink display can be used as a dedicated screen for monitoring a wide variety of data including such things as weather, stocks, to-do lists and more. The display can also be mounted and features compatibility with more than 82 apps. ## Trend Insights (Trend Hunter) - Score: 3.4/10 - Popularity: 29% | Activity: 31% | Freshness: 43% - 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) ## Key Themes ### Key Themes Behind This Trend - **Personalized Productivity Tools:** Emerging customization capabilities in smart displays enable users to tailor devices to individual workflows and personal productivity needs. - **Open Source Integration:** The incorporation of open source firmware into smart displays offers unprecedented user control and innovation possibilities, fostering community-driven enhancements. - **Extended Battery Life Solutions:** Developments in battery longevity, such as three-month usage per charge, redefine portable device usability, allowing for more flexible and mobile lifestyles. ### Where This Applies - **Consumer Electronics:** The customizable nature of smart displays like the TRMNL E Ink Display signals a shift towards more adaptive and user-centric devices in the consumer electronics sector. - **Software Development:** Open source integration in smart devices is carving new paths in the software development industry, emphasizing community collaboration and rapid iteration. - **Renewable Energy and Battery Tech:** Progress in battery efficiency and duration presents new avenues for innovation and sustainable practices within the renewable energy and battery technology industry. ## Related on Trend Hunter - [Minimalist E-Ink Displays](https://www.trendhunter.com/trends/trmnl-x.md) - [Minimalist E-Ink Displays](https://www.trendhunter.com/trends/the-trmnl-x.md) - [Low-Power Full-Color External Monitors](https://www.trendhunter.com/trends/dasung-paperlike-13k.md) - [Two-in-One Desktop Monitors](https://www.trendhunter.com/trends/philips-24b1d5600.md) - [Premium E-Ink Computer Monitors](https://www.trendhunter.com/trends/boox-mira-pro.md) - [Full-Color E-Ink Artwork Displays](https://www.trendhunter.com/trends/arpobot-bloomin8.md) - [Sleek Color E-Ink Monitors](https://www.trendhunter.com/trends/modos-flow.md) - [E-Ink Digital Wall Displays](https://www.trendhunter.com/trends/fusion-1.md) - [Ultra-Smooth E-Ink Tablets](https://www.trendhunter.com/trends/dasung-paperlike-103.md)