ProtoArc XK01 Review 2026: Full-Size Tri-Fold Bluetooth Keyboard
ProtoArc XK01
Full-size tri-fold Bluetooth keyboard
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Table of Contents
What Is the ProtoArc XK01?
The ProtoArc XK01 is a Bluetooth keyboard that folds into thirds. Most folding keyboards cut keys to save space. The XK01 keeps a full 105-key layout, including a number pad, a complete F1–F12 row, and dedicated navigation keys, then folds down to roughly the footprint of a large phone. It's built for travel and for turning a tablet or phone into a small workstation. It is not an ergonomic keyboard: if typing is causing you wrist strain, the split EK01 Plus is the ProtoArc model built for that. See our ProtoArc desk setup comparison for the rest of the lineup.
How We Picked This
We didn't carry an XK01 on a trip. We checked ProtoArc's published specs against what makes a travel keyboard work: whether the layout stays full-size, the folded size and weight, how many devices it can switch between, and battery life. Every figure below comes from ProtoArc's XK01 product page or its XK01 FAQ. We could not find an independent third-party rating platform for ProtoArc, so there's no verified satisfaction score here. See how we research products.
Key Features
Full 105-Key Layout With a Number Pad
ProtoArc lists 105 keys with 0.65-inch (16.5 mm) keycaps, a number pad, a full function row, dedicated navigation keys, and 12 multimedia shortcut keys. This is the XK01's main selling point. Most folding keyboards drop the number pad or shrink the keys, which is fine for short messages and frustrating for spreadsheets or long documents.
Tri-Fold Design
Folded, ProtoArc lists it at 8.46 x 4.68 x 0.78 inches and 10.5 oz. Unfolded, it's 15.2 x 4.68 x 0.48 inches. The hinges are aluminum, and the spec list rates them for 10,000+ folds. There's no power button: according to ProtoArc's FAQ, Hall switches turn the keyboard on when you unfold it and off when you fold it.
Three Bluetooth 5.1 Channels
Up to three devices can be paired at once, and each has its own switch key. That covers a laptop, tablet, and phone without re-pairing. ProtoArc lists Windows, macOS 10.15 or later, iOS, and Android. The XK01 is Bluetooth-only and has no USB receiver, so a desktop without Bluetooth won't work with it. Listed wireless range is 10 m (33 ft).
Quiet Scissor Switches
The keys use low-profile scissor switches, which feel similar to typing on a laptop. ProtoArc positions them as quiet enough for shared spaces like libraries and cafes.
USB-C Charging, Up to 150 Days Standby
A 210 mAh rechargeable battery charges over USB-C, and the product page lists up to 150 days of standby with auto-sleep. That is a standby figure, not continuous typing time, so real use between charges will be shorter. ProtoArc's FAQ also says to charge with a USB-A to USB-C cable (one is included).
Real Customer Feedback
We could not find an independent Trustpilot page or similar third-party review platform for ProtoArc, and the XK01 listing on ProtoArc.com doesn't show a verified aggregate rating we could cite. That's a real limitation of this page: we can confirm the published specs, but not independently verified buyer satisfaction.
Pricing & Where to Buy
ProtoArc sells the XK01 directly from its own store. As of October 13, 2026, it was listed at a $43.99 sale price against a $53.99 regular price. Sale prices change, so confirm the price at checkout.
| Product | Price | Notes |
|---|---|---|
| ProtoArc XK01 | $43.99 | Sale price (list $53.99); US layout. ProtoArc also sells a UK-layout version on its UK store. |
ProtoArc XK01 Pros & Cons
Pros
- Keeps a full 105-key layout with a number pad, which most folding keyboards drop
- Folds to 8.46 x 4.68 x 0.78 in and weighs 10.5 oz
- Pairs with three devices and switches with one key
- Turns on and off automatically when unfolded and folded
- USB-C charging and a 2-year limited warranty
Cons
- Bluetooth only: no USB receiver for desktops without Bluetooth
- Flat standard layout, so it isn't an ergonomic fix for wrist strain
- 150-day figure is standby, not active typing time
- No independent third-party rating platform found
Who Should Buy the ProtoArc XK01?
People who type seriously away from a desk: business travelers, students working from a tablet, or anyone who wants a number pad in a laptop bag. The three Bluetooth channels also suit someone who moves between a laptop, tablet, and phone throughout the day.
The ProtoArc XK01 is NOT right for you if: you want a keyboard to reduce wrist or hand strain at a permanent desk. The EK01 Plus split layout is built for that. It's also a poor fit if your computer has no Bluetooth.
Other Home & Lifestyle Picks
If this isn't quite the piece you need, here's what else we're featuring from ProtoArc's lineup and the wider category:
- ProtoArc EK01 Plus — split ergonomic keyboard for wrist strain at a desk
- ProtoArc CS100 Laptop Stand — foldable stand that pairs with a travel keyboard
- All Home & Lifestyle Picks — browse the full category
Final Verdict: Is the ProtoArc XK01 Worth It?
On paper, the XK01 solves the usual folding-keyboard problem: it keeps a full-size layout and number pad and still packs down to 8.46 inches long. At the $43.99 sale price, that's a reasonable case for anyone who types a lot on the road. Two caveats: it's Bluetooth-only, and it isn't ergonomic. We also can't back this with independent buyer-satisfaction data, because none was findable.
No independent rating found
Research-based pick, not an in-house hands-on test — see disclosure above.
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