The UPERFECT GR14BU is a 14-inch OLED touchscreen portable monitor marketed with a maximum refresh rate of 120 Hz. Reviewers describe a vivid screen, but its practical appeal depends on your setup: brightness can drop on laptop-only USB-C power, and touch works better with Windows than macOS in their reported tests. It makes the most sense if you can power it separately and want a portable screen for a Windows laptop or handheld.
What the GR14BU offers
UPERFECT markets the GR14BU as a 3K OLED touchscreen display. Tom’s Hardware lists a 16:10 screen, two USB-C ports with DisplayPort Alt Mode, and one micro-HDMI port. The monitor supports up to 120 Hz, though one creator’s Windows setup reported a choice between 120 Hz at 8-bit color and 100 Hz at 10-bit color. That mode trade-off may matter if you favor color depth over refresh rate.
Brightness changes with the power source
Hubwood reported approximately 398 nits on wall power and 138 nits when powered only through a laptop’s USB-C port. Those readings suggest a meaningful brightness drop when you leave the separate power source behind. Hubwood’s measurements were from that reviewer’s setup.
| Power mode | Hubwood-reported brightness |
| Wall power | Approximately 398 nits |
| Laptop USB-C only | 138 nits |
If you plan to power the GR14BU from a laptop alone, expect less brightness than with a separate power source.
Tom’s Hardware reported a separate result: its single-USB-C connection limited the brightness setting to 20%; adding the included wall adapter through the second USB-C port allowed the display to reach its maximum setting. That 20% is a setting, not a luminance measurement in nits. Tom’s Hardware also measured 368.6 nits at 100% brightness while the monitor was plugged in, compared with UPERFECT’s stated 500-nit figure.
The monitor has no internal battery, according to the creator behind the Better Gaming review. In that review’s Nintendo Switch 2 setup, the console used its dock, an HDMI-to-mini-HDMI connection, and separate power for the display. So “portable” means easy to move, not a screen that runs untethered by itself.
Touch depends on the host
Tom’s Hardware lists touch support for Windows 11. In Better Gaming’s Windows test, touch did not work until the reviewer added a separate USB data connection; the reviewer then adjusted a slight touch-position offset in Windows settings. Gadgets Guardian reported that multi-touch did not work properly with macOS. These are individual setup reports, but they point to a practical distinction: check the touch connection and operating system before buying if touch is a main reason you want this monitor.
Stand, gaming and audio trade-offs
Tom’s Hardware found that the small, centrally mounted kickstand supports landscape orientation only. The same review described the on-screen-display buttons as loose-feeling. If you need portrait orientation, the built-in stand will not provide it.
In Tom’s Hardware’s Battlefield 6 test over HDMI, frame rates briefly dipped into the 90 fps range during heavy action, with some screen tearing. The review also reports that the GR14BU lacks Adaptive-Sync, the variable-refresh-rate feature used by technologies such as FreeSync and G-Sync.
The built-in speakers are a fallback rather than a strong audio option: Tom’s Hardware heard distortion above 75% volume, little bass, and flat music reproduction.
For another portable OLED option, Tom’s Hardware compared the GR14BU with the ASUS ZenScreen OLED MQ16FC. The ASUS has a larger 16.1-inch screen and 1200p resolution, but is listed at 60 Hz and lacks touch. That trade-off may suit someone who values screen size over the GR14BU’s higher refresh rate and touch input.
Dated US price
In its review published November 5, 2026, Tom’s Hardware reported a $299 Amazon.com price for the GR14BU and listed a $399 MSRP. Those figures describe that dated US price snapshot.
