AOC C27G4ZH
By AOC · Gaming Monitors · Audio & Electronics
- 27-inch curved FHD VA panel
- 280Hz refresh rate
Lowest price seen
$129.99
from $129.99 at The AOC Store (official AOC Americas D2C, linked from aoc.com 'Where to buy') · Checked Sep 28, 2026
- The AOC Store (official AOC Americas D2C, linked from aoc.com 'Where to buy') $129.99View at The AOC Store (official AOC Americas D2C, linked from aoc.com 'Where to buy')
- Vivabay $154.80View at Vivabay
- eBay $180.71View at eBay
- eBay (used) eBay: used, open-box, refurbishedView at eBay (used)
- AmazonView at Amazon
Prices are snapshots. Check the current price with the store.
Summary
A 27-inch curved 1080p gaming monitor built for speed, with up to 280 Hz over DisplayPort and a stand that adjusts for height, swivel and tilt. Check that you are buying it for fast competitive play, since 1080p at this size looks soft for text and HDR support is compatibility-level only.
Strengths
- Up to 280 Hz over DisplayPort with Adaptive Sync across 48–280 Hz.
- Curved VA panel rated at 3000:1 static contrast for deep blacks.
- Stand adjusts for height, swivel and tilt, which budget monitors often skip.
- HDMI, DisplayPort and power cables all come in the box.
- G-Series warranty terms cover advance replacement and zero dead pixels for three years, plus one first-year accidental-damage incident.
Weaknesses
- 1920 × 1080 at 27 inches is only 81.59 PPI, so text looks soft next to QHD.
- Full 280 Hz needs DisplayPort while HDMI tops out at 240 Hz.
- HDR10 is signal compatibility rather than real HDR at 300 nits with no local dimming.
- The 0.3 ms figure is MPRT marketing with no exact-model independent response test behind it.
- No USB hub or built-in speakers are listed.
Verified specifications
| Panel | 27-inch curved VA panel with 1500R curvature. |
|---|---|
| Resolution | 1920 × 1080, 16:9, 81.59 PPI. |
| Refresh rate | up to 280 Hz via DisplayPort 1.4; up to 240 Hz via HDMI 2.0. |
| Adaptive Sync | 48–280 Hz range; no G-SYNC certification listed for this model. |
| Response time | manufacturer claim of 0.3 ms MPRT and up to 1 ms GtG; no independent exact-model test found. |
| Brightness | 300 cd/m² rated. |
| Contrast | 3000:1 static, 80M:1 dynamic. |
| Color | 16.7 million colors; 125.7% sRGB and 92.4% DCI-P3 in CIE 1976. |
| HDR | HDR10 support; no local dimming or DisplayHDR certification. |
| Ports | 2× HDMI 2.0, 1× DisplayPort 1.4, 3.5 mm headphone output; no USB hub or built-in speakers listed. |
| Extras | Flicker-Free, Low Blue Light, Low Input Lag mode, G-Menu. |
| Mounting | VESA 100 × 100 mm. |
| Dimensions | 611.5 × 516.4 × 239.4 mm with stand; 5.44 kg. |
| Stand adjustment | 130 mm height, swivel −28° to +28°, tilt −3° to +21°; no pivot specified. |
| Power | internal supply; 30 W typical, 0.5 W standby, 0.3 W off. |
| In the box | HDMI cable, DisplayPort cable and power cable. |
Full research notes and sources
Refresh rate and connections
Use DisplayPort: it is the only input that reaches 280 Hz, while both HDMI 2.0 inputs top out at 240 Hz. Adaptive Sync covers 48–280 Hz, and AOC lists no G-SYNC certification for this model. AOC’s 0.3 ms number is MPRT, not a measured average transition time, and no exact-model test has published dark-transition behavior, overshoot or input lag. If you notice smearing in dark scenes, that is the VA trade-off to test inside the return window.
Sharpness and HDR
At 27 inches, 1080p works out to 81.59 PPI, which is fine for games at normal distance but visibly soft for text and desktop work. Treat HDR10 the same way: with a 300-nit rating and no local dimming, the monitor accepts HDR signals without showing real HDR. Nobody has published measured brightness, contrast or gamut for this exact model, so take the 3000:1 and wide-gamut figures as manufacturer claims.
Stand, warranty and upkeep
The stand gives 130 mm of height adjustment plus swivel and tilt, so you can skip a monitor arm. The G-Series warranty terms stand out: three-year advance replacement with zero-dead-pixel coverage and one accidental-damage incident in the first year. Keep proof of purchase and confirm current terms at claim time. Day to day there is nothing to replace; wipe the screen, keep the vents clear and check the cables.
Is it worth it?
Buy it on sale. It fits a buyer who wants maximum refresh, a curved VA image and an adjustable stand for competitive 1080p play. If sharp text or convincing HDR matters more, an inexpensive QHD monitor serves you better. Check the store panel above for current prices.
Which model this is
This page covers the AOC Gaming C27G4ZH, a 27-inch 1500R curved FHD monitor in the G4 family, UPC 685417735983. The Amazon listing for this exact model is ASIN B0D685N3NV. Do not confuse it with the C27G4H, C27G4X, C27G4Z, C27G4ZXE, C27G2Z, CQ27G4H or CQ27G4ZH, which are different hardware; also note that one paragraph on AOC’s own product page mistakenly calls it C27G2ZXE, so match C27G4ZH and the UPC when you order.
Sources
Manufacturer:
- AOC — C27G4ZH product and specification page
- The AOC Store — C27G4ZH listing
- PRWeb — AGON by AOC G4 series launch and G-Series warranty announcement
Independent reviews:
- No instrumented independent review of the exact US model was found during research
Owner reports:
- No recurring exact-model owner praise or failure pattern was established in this pass
