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LG 27UL550-W 27-inch 4K UHD vs UPERFECT 13.3" 4K OLED Portable Monitor — Head-to-Head (2026)

The specs side by side, with links to both product pages.

LG 27UL550-W 27-inch 4K UHD (3840 x 2160) Ultrafine Computer Monitor, IPS, AMD FreeSync, Tilt/Height/Pivot Adjustable Stand, HDR10, HDMI, DisplayPort, Black Stabilizer, White

LG 27UL550-W 27-inch 4K UHD (3840 x 2160) Ultrafine Computer Monitor, IPS, AMD FreeSync, Tilt/Height/Pivot Adjustable Stand, HDR10, HDMI, DisplayPort, Black Stabilizer, White

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vs
UPERFECT 13.3" 4K OLED Portable Monitor, 109% DCI-P3, 500 Nits Display | 3840×2160 UHD, 1ms Response, Ultra-Slim Aluminum Design, USB-C External Screen for Laptop, Gaming & Travel

UPERFECT 13.3" 4K OLED Portable Monitor, 109% DCI-P3, 500 Nits Display | 3840×2160 UHD, 1ms Response, Ultra-Slim Aluminum Design, USB-C External Screen for Laptop, Gaming & Travel

Check price on Amazon
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*Price sourced from Amazon.com. Price and availability subject to change.

Spec-by-spec

SpecLG 27UL550-W 27-inch 4K UHD (3840 x…UPERFECT 13.3" 4K OLED Portable…
BrandLGUPERFECT
ColorSilverBlack
ShapeFlatRectangular
Brightness400 candela_per_square_meter500 cd
Resolution4K UHD 2160p4K UHD 2160p
Color Gamut0.98150
Pixel Pitch0.160.16
Screen Size27 inches13.3 inches
Aspect Ratio16:916:9
Display TypeLEDOLED
Model Number27UL550-WM133J03
Refresh Rate60 hertz60 hertz
Adaptive SyncFreeSyncFreeSync
Mounting TypeWall MountDesktop Stand

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