ProtoArc XK01 Foldable Keyboard Review: Full-Size Typing for Travel

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The ProtoArc XK01 is designed for people who want desktop-style typing while traveling. Its main advantage is the 105-key full-size layout, including a dedicated numeric keypad and 12 multimedia shortcuts. The keyboard folds into three sections, so it takes less room in a backpack than a conventional office keyboard while still opening to a familiar working layout.

Typing is handled by quiet scissor-switch keys. They are better suited to offices, libraries, hotel rooms and shared workspaces than loud mechanical switches. The full layout is especially useful for spreadsheets, finance work and data entry, where losing the numeric keypad can slow down a mobile workflow. As with most folding keyboards, the hinge sections and compact construction may require a short adjustment period if you are moving from a heavy desktop board.

The XK01 supports three Bluetooth 5.1 channels, allowing it to switch between a laptop, tablet and phone. ProtoArc lists compatibility with Windows, macOS, iOS and Android devices that support Bluetooth Low Energy. The rated wireless range is up to 10 meters. Because this model is Bluetooth-only, buyers who specifically need a 2.4 GHz USB receiver should consider another keyboard.

Portability is strong for a full-size model. ProtoArc lists a folded size of approximately 8.48 × 4.71 × 0.82 inches and a weight of about 10.5 ounces (298 grams). Aluminum hinges are rated for more than 10,000 folds, and the keyboard automatically conserves power when not in use. Charging uses USB-C.

The 210 mAh rechargeable battery is rated for up to 150 days of standby time, with ProtoArc also describing up to six months of use on a full charge depending on usage. Real battery life will vary with typing time, switching frequency and sleep behavior, but the specification is suitable for travel where daily charging would be inconvenient.

The trade-offs are clear. The standard XK01 does not include a backlight or integrated touchpad, so it is less convenient for dark environments or tablet-only setups where a separate mouse is needed. It is also a productivity-first keyboard rather than a gaming model. In return, buyers get quiet keys, a numeric keypad, multi-device switching and a genuinely portable full-size layout.

The XK01 is best for business travelers, remote workers, students and anyone who regularly works from a laptop or tablet but dislikes cramped compact keyboards. Buyers who prioritize an integrated trackpad should look at the XK01 TP, while people who work at night may prefer a backlit model. For full-size typing in a foldable package, the XK01 offers a practical balance of portability and everyday usability.