AOC U27G4R Review (Affordable 4K Dual-Mode)

1. Introduction2. Design3. On-screen Display (OSD)4. Panel Analysis: SDR5. Response Times & Motion Clarity6. Input Latency7. Closing Thoughts8. View All Pages

While we've been focused on the booming OLED monitor segment, that doesn't mean other areas of the market aren't moving forward, too. High refresh-rate 4K LCDs are getting cheaper and cheaper, with the AOC U27G4R we are looking at today priced at under £280. Not only does it offer a native 4K/160Hz experience, but it also supports dual-mode technology, meaning it can switch to 1080p/320Hz with the press of a button. But what's it actually like to use on a daily basis? We find out today.

Aside from the aforementioned dual-mode technology (which AOC confusingly calls both ‘Dual Frame' and ‘Dual Resolution' depending where you look), the U27G4R uses a Fast IPS panel, offering a claimed 1ms response time, alongside 1000:1 contrast and up to 400 nits of brightness. It also offers adaptive sync support and a pair of HDMI 2.1 ports, so on paper it looks enticing at the circa-£280 price-point. Let's see if it can deliver.

Specification:

• Screen size (inch): 27
• Screen size (cm): 68.6
• Panel treatment: Antiglare (AG)
• Pixels per Inch: 163
• Panel resolution: 3840×2160 / 1920×1080 (Dual Frame Monitor)
• Resolution name: UHD / FHD (Dual Frame Monitor, UHD)
• Aspect ratio: 16:9
• Panel type: Fast IPS
• Backlight type: WLED
• Max Refresh Rate: UHD@160Hz / FHD@320Hz (Dual Frame Monitor)
• Response time GtG: 1 ms
• Response time MPRT: UHD 0.5 ms / FHD 0.3 ms
• Static contrast ratio: 1000:1
• Viewing angle (CR10): 178°/178°
• Display colours: 16.7M (8 bits)
• Brightness (nits): 400 cd/m²
• Sync technology (VRR): Adaptive Sync
• HDR (High Dynamic Range): VESA Certified DisplayHDR™ 400
• Blue Light Technology: Anti Blue Light
• Multiview (PbP, PiP): PiP + PbP
• Colour space (sRGB – CIE 1976): 124.7%
• Colour space (DCI-P3 – CIE 1976): 95.9%
• Colour space (Adobe RGB – CIE 1976): 93.4%
• Removable stand: ✓
• Kensington Lock: ✓
• VESA wallmount: 100×100
• Quick release function: ✓
• Tilt: ­–3.5° ±1.5° ~ 21.5° ±1.5°
• Height adjustment: 130 mm
• Swivel: –30° ±2° ~ 30° ±2°
• Pivot: –90° ±2° ~ 90° ±2°
• HDMI: HDMI 2.1 × 2
• DisplayPort: DisplayPort 1.4 × 1
• USB Hub: ✓
• USB Hub speed: USB 3.1 (Gen 1)
• USB downstream ports: 4
• Audio Output: Headphone out (3.5mm)

Firmware tested: V1.00

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