LG UltraGear 27GX790A-B 27" Black 2025

LG UltraGear 27GX790A-B 27" Black 2025

LG
95 Overall Score
vs
Uperfect Portable Monitor M173J05-HKB-0000 17.3" Black 2023

Uperfect Portable Monitor M173J05-HKB-0000 17.3" Black 2023

Uperfect
70 Overall Score

What Buyers Say

LG UltraGear 27GX790A-B 27" Black 2025

92 out of 100 medium confidence 15 reviews

The LG UltraGear 27-inch OLED gaming monitor receives overwhelmingly positive feedback for its stunning OLED picture quality, incredibly high 480Hz refresh rate, and ultra-fast 0.03ms response time. Users describe it as a game-changer for competitive gaming, offering fluid motion and deep blacks. Common drawbacks include the high price, the need for a powerful GPU to reach 480Hz, and the lack of built-in speakers. Overall, it is highly recommended for serious gamers who can afford the premium.

Pros
  • Stunning OLED picture quality
  • Incredibly smooth 480Hz refresh rate
  • Ultra-fast 0.03ms response time
  • Deep blacks and vibrant colors
  • Solid build and ergonomic stand
Cons
  • High price point
  • Requires powerful GPU for 480Hz
  • No built-in speakers
  • SDR brightness lower than LCD rivals
  • Potential burn-in risk with OLED
👍 Display quality 5
👍 Refresh rate 5
👍 Response time 5
👎 Price 4
👍 Build quality 4
👎 Speakers 3

Uperfect Portable Monitor M173J05-HKB-0000 17.3" Black 2023

82 out of 100 high confidence 30 reviews

The UPERFECT 17.3" 4K portable monitor is widely praised for its sharp display, lightweight build, and versatility for travel and remote work. Many users highlight excellent customer service and easy setup via USB-C, though some report dead pixels, dim brightness, and cheap accessories. Overall, it delivers strong value for professionals needing a second screen on the go.

Pros
  • Sharp 4K display
  • Lightweight and portable
  • Excellent customer service
  • Easy USB-C connectivity
  • Versatile for travel and remote work
Cons
  • Dead pixels reported
  • Dim brightness in some modes
  • Cheap accessories and cables
  • Short power cable
  • Mediocre built-in speakers
👍 Display quality 20
👍 Build quality 12
👍 Portability 15
👍 Customer service 5
🤔 Brightness 6
👎 Accessories 5

Scores

Portable
LG
14
Uperfect
96
Office
LG
88
Uperfect
69
Gaming
LG
84
Uperfect
62
Professional
LG
82
Uperfect
82
Creative
LG
79
Uperfect
79
Entertainment
LG
73
Uperfect
58

Specifications

LG UltraGear 27GX790A-B 27"Uperfect Portable Monitor M173J05-HKB-0000 17.3"
Display
Size27"17.3"
Resolution2560 x 14403840 x 2160
Panel TypeOLED★IPS
Aspect Ratio16:916:9
Curved✗✗
Screen Finishmatteglossy
Performance
Refresh Rate480 Hz★60 Hz
Response Time0.029999999329447746 ms★3 ms
Adaptive SyncFreeSync Premium Pro★FreeSync
Color & HDR
Brightness275 nits500 nits★
Color Gamut98.5% DCI-P3100% Adobe RGB
Color Depth10-bit★8-bit
HDRDisplayHDR True Black 400HDR
HDR SupportHDR10★HDR
Connectivity
HDMI Ports2★1
DisplayPort1★—
USB-C3★2
Thunderbolt—Thunderbolt 3
Speakers✗✓★
Headphone Jack✓✓
Ergonomics
Height Adjustable✓✓
Tilt✓✓
Swivel✓★✗
Pivot✓★✗
VESA Mount100x10075x75
Features
Webcam✗—
Touchscreen✗—
PIP/PBP✗—
Power—30W★
Weight9.30 kg★—

Pros & Cons

LG UltraGear 27GX790A-B 27" Black 2025

  • Strong performance (100th percentile)100th %ile
  • Strong connectivity (98th percentile)98th %ile
  • Strong social proof (98th percentile)98th %ile
  • Strong user sentiment (95th percentile)95th %ile

Uperfect Portable Monitor M173J05-HKB-0000 17.3" Black 2023

  • Strong connectivity (95th percentile)95th %ile
  • Strong portability (94th percentile)94th %ile
  • Strong color (94th percentile)94th %ile
  • Strong display (84th percentile)84th %ile

Pricing

Uperfect Portable Monitor M173J05-HKB-0000 17.3" Black 2023 is CA$396 cheaper (2.1x less).

LG UltraGear 27GX790A-B 27" Black 20250.127score per dollar
vs
Uperfect Portable Monitor M173J05-HKB-0000 17.3" Black 20230.201score per dollar

Uperfect Portable Monitor M173J05-HKB-0000 17.3" Black 2023 offers 1.6x better value for money

LG UltraGear 27GX790A-B 27" Black 2025

Uperfect Portable Monitor M173J05-HKB-0000 17.3" Black 2023

Verdict

★ Winner: LG UltraGear 27GX790A-B 27"

Scores 95 overall, wins 3 of 6 usage categories and 12 of 30 specs.

LG UltraGear 27GX790A-B 27" Better at:

GamingOfficeEntertainment

Uperfect Portable Monitor M173J05-HKB-0000 17.3" Better at:

Portable

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