Pocuter Spectra: A Hackable, Repairable Smartwatch with OLED Display and Expandable Storage

In a world where most smartwatches are sleek, polished, and difficult to repair or modify, Pocuter Spectra is a breath of fresh air. This new hackable and repairable smartwatch is designed with makers, developers, and open-source enthusiasts in mind. Powered by an ESP32-S3 microcontroller and running a custom JavaScript-based operating system, SpectraOS, this smartwatch promises to deliver flexibility, expandability, and complete transparency—something that’s rare in the smartwatch world today.

Currently on crowdfunding via Kickstarter, the Pocuter Spectra is an exciting product for those who love to tinker, customize, and develop their own smartwatch features. Let’s dive into the key specs, features, and what makes this watch truly stand out.

Key Features of Pocuter Spectra:

OLED Display:

The 1.8-inch OLED display with a resolution of 368 x 448 pixels ensures clear, sharp visuals. The display is large enough to offer a full range of smart features, yet compact and stylish for everyday wear.

Hackable & Repairable Design:

One of the most unique aspects of the Spectra is its hackability. You can easily open the device by removing just seven screws, which makes repairs and customizations straightforward. Pocuter offers developer tools, APIs, and accessories, including a debugging board, making it ideal for those who want to explore the inner workings of their device and add personal modifications.

Expandable Storage:

Spectra comes with 32MB of executable flash memory and 8MB of RAM, which is ample for running apps and storing data. But what sets it apart is its microSD card slot, supporting up to 512GB of expandable storage. This means you can store a large number of files, apps, or data directly on the device, expanding its functionality far beyond typical smartwatches.

Connectivity & NFC:

The nRF52832 co-processor supports Bluetooth 5.4 Low Energy, which allows you to connect your Spectra watch to your smartphone or other Bluetooth devices. Additionally, there is an NFC module. While Pocuter mentions that mobile payment features are not available due to certification challenges, the NFC capability could still be useful for other NFC-based functionalities.

Performance:

The watch is powered by a 240 MHz dual-core microcontroller, which is certainly not the powerhouse seen in premium smartwatches like the Apple Watch or those running Google Wear OS. However, for its intended purpose, the Spectra provides more than enough processing power. Whether you're tracking health data, using apps, or tinkering with custom scripts, the Spectra is a versatile tool for developers.

Sensors & Interactive Features:

The Pocuter Spectra is equipped with a variety of sensors, including a gyroscope, accelerometer, and heart rate sensor, providing capabilities for fitness tracking, motion detection, and health monitoring.
Mic, speaker, and vibration motor ensure that the watch is interactive, with haptic feedback, voice interaction, and audio features for notifications or commands.

Crown with Magnetic Encoder:

A magnetic encoder crown allows precise control for scrolling, zooming, and other interactive functions. This analog-style control is an intuitive way to interact with the watch, making it easier to use without constantly touching the screen.

Software: SpectraOS and Open-Source Customization

One of the standout features of the Pocuter Spectra is the operating system: SpectraOS. Built on the Moddable SDK, this custom JavaScript-based OS is designed to be lightweight and flexible, offering the ability to develop apps and functionalities directly on the device. With developer tools, APIs, and a focus on openness, SpectraOS allows you to truly make the watch your own.

Whether you're a hobbyist or a developer, the open-source nature of the Spectra smartwatch enables you to get involved with the community, contribute to the software, or even create your own custom applications for the device.

Pocuter Spectra Kickstarter Campaign

Currently, the Pocuter Spectra is live on Kickstarter, and early backers can pledge €199 (around $218) or more to get their hands on the device once it starts shipping in July 2025. The company behind the Spectra, Pocuter, is known for the Pocuter One—a small, coin-sized open-source device—and they are bringing the same ethos of accessibility and openness to the Spectra smartwatch.

While the hardware is mostly ready for production, Pocuter is still fine-tuning the software, and backers can expect to receive updates on the progress as the product develops. This campaign offers backers the opportunity to be part of the development process and contribute to the future of the Pocuter Spectra.

The Pocuter Spectra smartwatch is shaping up to be a game-changer for anyone who loves tinkering with hardware and software. Its hackable design, expandable storage, and open-source software give users complete control over the device. Whether you're a developer looking for a flexible platform or a DIY enthusiast eager to explore smartwatch technology, the Spectra could be the perfect addition to your toolkit.

If you’re interested in being part of the future of hackable wearables, be sure to check out the Kickstarter campaign and support this innovative project. The Pocuter Spectra is more than just a smartwatch; it’s a canvas for creativity and innovation.