Five different ways to add screen real estate to a laptop, from a single 14-inch panel to a full triple-screen rig — here's how Kwumsy's lineup actually differs.
Want the biggest single upgrade for the money? The D1's folding 23.8-inch panel is the standout. Need a genuine triple-screen laptop rig? The P7PRO is built for exactly that. Just want one extra screen without spending much or worrying about compatibility? The S1 is the easiest recommendation. The K1 and H1 are more specialized — a touchscreen glance-strip keyboard and a multi-display hub respectively — and worth it only if their specific use case matches yours.
| Spec | P7PRO | K1 | D1 | H1 | S1 |
|---|---|---|---|---|---|
| Price | $259.99 | $289.00 | $179.99 | $179.00 | $159.00 |
| Type | Triple-screen extender | Touchscreen keyboard | Foldable monitor | HDMI hub | Single-screen extender |
| Screen size | 2x 15.6" | 12.6" strip | 23.8" | N/A (drives 3 externals) | 14" |
| Resolution | Not specified | 1920x515 | 1080p/100Hz (2.5K in EU) | 1080p@60Hz per output | 1080p |
| OS support | Windows, macOS only | Windows (best); partial Mac/Android | Windows, macOS (implied) | macOS, Windows, Android | Windows, macOS, Linux, Android |
| Best for | Full triple-screen laptop setup | Glanceable secondary strip | Big-screen portability | Driving 3 extra 1080p displays | One extra screen, budget-friendly |
Two 15.6" panels off one USB-C cable — the closest thing to a real desktop multi-monitor setup that still fits in a bag.
A touchscreen strip built into a keyboard — great for glanceable content, not a replacement for a real monitor.
A genuine 23.8" monitor that folds flat — unmatched screen size-to-portability ratio in this lineup.
Not a screen itself — a hub that drives three of your own external HDMI monitors, capped at 1080p60 each.
One screen, broad compatibility including Linux and consoles, and the lowest price point of the five.
One solid extra screen, the widest device compatibility, and the lowest price in the lineup.
Two extra 15.6" panels off one cable — closest thing to a real desktop setup on the go.
A full 23.8" monitor that actually folds flat for travel.
Pick the K1 for a glanceable touchscreen strip, or the H1 if you already own three external monitors and need to drive them all from one laptop port.
For most people browsing this comparison, the S1 offers the best balance of price, portability and compatibility. If your work genuinely demands more screen real estate, though, the P7PRO or D1 are worth the extra cost for very different reasons — total screen count versus single-screen size.
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