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There is something quietly refreshing about a gadget that does not want to be your phone. The Orion PDA is not chasing the latest smartphone trend, and it d

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The M5Stack CardputerZero is a tiny, portable computer that's about the size of a small stack of business cards. But despite its compact size, it's a full-fledged PC with a display, keyboard, and support for Linux-based software. M5Stack has been selling similar devices under the Cardputer brand for a few years, but up until now they've featured ESP32 microprocessors and far too little memory to support Linux. But the CardputerZero is powered by a Raspberry Pi Compute Module 0, which means it's got the same Broadcom BCM2710A1 quad-core Arm Cortex-A53 processor as a Raspberry Pi Zero 2W, along with 512MB of LPDDR2 and support for WiFi 4 and Bluetooth 4.2 LE.

I began development of a Universal Pocket Computer Interface for use with Sharp, Casio, and Texas Instruments pocket computers and graphing calculators.

Nearly six years after introducing the Flipper Zero wireless hacking tool, the developers have unveiled a new model that's way more powerful and versatile. The Flipper One is still a pocket-sized gadget with an awful lot of networking features. But it's also a full-fledged Linux computer that runs open source software and support for modular hardware expansion thanks to PCIe, SATA, and USB 3.0 interfaces. Flipper isn't ready to talk pricing or availability yet. But the company has launched a developer portal for the Flipper One and is seeking to build community support ahead of an eventual crowdfunding campaign.

The ShaRPiKeebo is a pocked-sized computer kit that features a custom PCB with a 2.7 inch sunlight-readable display, a 56-key thumb keyboard plus D-Pad buttons, and a LoRa radio for long-range wireless communication. It's designed for use with a Raspberry Pi Zero W or Zero 2W. So while you'll need to provide your own Raspberry Pi, the kit gives you the flexibility of picking your processor, among other features.

A small team of developers is building a pocket-sized, modular computer with a 4.1 inch, 1080 x 480 pixel touchscreen display, an an STM32MP157 dual-core Arm Cortex-A7 processor, and 4GB of DDR3 memory. At a time when high-end smartphones have the kind of processing power you'd expect from a decent laptop, the the "Linux Platform Kit" may not be the most powerful device you can fit in your pocket.