UPERFECT GR19BU

Name: UPERFECT GR19BU
Brand: UPERFECT
Price: 480 USD
Availability: InStock

Nineteen inches of 4K at 144 Hz is desk-monitor specification folded into a three-pound slab. UPERFECT documents the 144 Hz over USB-C and lists the mini-HDMI input without a version, and a power adapter ships in the box because a screen this size asks more of a laptop port than a 14-inch one does. The quantum-dot film carries a 107.8% DCI-P3 claim, the other number here that does not belong on a travel panel.

Approx. price

~$480

snapshot, not a live price

Sharpness

97ppd · retina-class

past the ~1 arcminute limit of 20/20 acuity — the grid is gone

HDR tier

No HDR

the maker makes no HDR claim for this panel

Peak brightness

400nits claimed

no HDR certification

USB-C power

None

video and data only, or no USB-C at all

Max refresh

144 Hz

9 ms GtG rated

Port speed — can each input carry this panel?

USB-C (DP Alt Mode)· below the panel's maximum

This panel needs 34.4 Gbps at 3840×2160, 144 Hz and 24 bits per pixel, with no DSC to fall back on.

Best for: A desk-class 4K panel for people who keep changing desks

No input on this monitor carries 3840×2160 at 144 Hz and 24 bits per pixel at once. There is no lower bit depth to fall back to either — this is already an 8-bit panel — so the advertised refresh rate is available only at a lower resolution, or on the reduced-blanking timing a DisplayPort link can use in place of the television timing this figure assumes. How the arithmetic works.

Specifications

Approx. price: ~$480
Type: Portable
Screen size: 19 in
Resolution: 3840×2160
Aspect ratio: 16:9
Pixels per degree: 97 — retina-class
Pixels per inch: 232
Panel: QLED
Finish: matte
Curvature: Flat
Max refresh: 144 Hz
Response time: 9 ms GtG
VRR: FreeSync
HDR tier: No HDR
HDR certification: None
Peak brightness: 400 nits claimed
SDR brightness: 400 nits
Local dimming: None
Static contrast: 1,200:1
Colour gamut: 100% DCI-P3
Colour depth: 8-bit
HDMI: 1 × HDMI, version not published
DisplayPort: None
DSC: Not supported
Port speed: No input reaches the panel's maximum
USB-C: Video in over USB-C
Thunderbolt: No
KVM: None
USB hub: 1 ports
Speakers: Built in
Stand: tilt
VESA: 75x75
Weight: 3.07 lb
Released: 2025
$ per inch: $25
$ per megapixel: $58

Features

3840×2160 at 144 Hz over USB-C
Quantum-dot film rated past 100% DCI-P3
75×75 mm VESA pattern and a fold-out stand
Two full-function USB-C inputs plus a mini-HDMI port
USB-A port for a keyboard or drive

What it does well

232 pixels per inch is denser than any desktop monitor — 97 pixels per degree at arm's length, past what most eyes resolve
144 Hz at 4K on a portable, where 60 Hz is the norm even on expensive ones
FreeSync means a wandering frame rate does not tear
The quantum-dot film covers the full DCI-P3 range, so photo and video work is realistic on it
VESA mounting turns it into a fixed second monitor at home
Matte finish, which matters more at 400 nits than the number suggests

What it gives up

Three pounds and a 17-inch footprint is luggage, not a laptop-bag slip pocket
It ships with its own power adapter because a 19-inch 4K panel asks more of a laptop port than a 14-inch one does — UPERFECT rates the monitor at 16 W and publishes no adapter figure
UPERFECT publishes no HDMI version for the mini-HDMI input, so whether that input carries 4K at 144 Hz is unknown and the port table here leaves it out
9 ms grey-to-grey is slow for 144 Hz — smearing is visible in fast motion
The HDR claim comes with no certification and no local dimming, so this page credits it with no HDR at all
At around $480 it costs more than several 27-inch desktop 4K monitors

The two lists above come from the maker’s specifications and from published third-party measurements, not from owner reports. Where owner discussion has been read it appears in its own section below, so the two are never mistaken for each other.