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| https://www.amazon.com/s?k=Acer%20KA222Q%20B%2021.5%20inch%20Full%20HD%20Monitor&tag=10274805-20 | Buy Now | https://www.amazon.com/s?k=ViewSonic%20XG323B-4K-OLED%2031.5%20inch%20Ultra%20HD%204K%20Gaming%20Monitor&tag=10274805-20 |
| 21.5 inches display | VA | 1920 x 1080 pixels (Full HD) | 75Hz | 1 ms response | 16.7 M | Key Difference | 31.5 inches display | OLED | 3840 x 2160 pixels (4K UHD) | 3840Hz | 0.03 ms response | 1.07 B |
| Launched | Launch Status | Upcoming |
| 8.6 | Rating | 8.5 |
| 4947 | Votes | 79 |
| Acer KA222Q B 21.5 inch Full HD Monitor is a 21.5 in VA LED Monitor. It has a 1920 x 1080 pixels (Full HD) resolution and a 75 Hz refresh rate. It has a 1 ms response time and Adaptive Sync support. Notable features include 1 x HDMI v1.4, DisplayPort, Anti-Glare and VGA. | Description | ViewSonic XG323B-4K-OLED 31.5 inch Ultra HD 4K Gaming Monitor is an upcoming 31.5 in Monitor. It has a 3840 x 2160 pixels (4K UHD) resolution. It has a 0.03 ms response time and Adaptive Sync support. Notable features include 2 x HDMI v2.1, 2 x DisplayPort v1.4 and Headphone Jack. |
| Acer | Brand | ViewSonic |
| KA222Q B | Model | XG323B-4K-OLED |
| — | Dimensions | 714.6 x 412.4 x 45.05 mm |
| 164 mm | Depth with Stand | 229.9 mm |
| 378.3 mm | Height with Stand | 644.5 mm |
| 2.62 kg | Weight | 1.7 kg |
| 2.96 kg | Weight with Stand | 5.4 kg |
| VA | Panel Type | OLED |
| Flat | Form Factor | Flat |
| 3 years Warranty | Warranty | 3 years Warranty |
| 21.5 inches | Size | 31.5 inches |
| — | PPI | — |
| 16:9 | Aspect Ratio | 16:9 |
| Yes | Anti Glare Screen | No |
| — | Features | — |
| 1920 x 1080 pixels (Full HD) | Resolution | 3840 x 2160 pixels (4K UHD) |
| 75 Hz | Max Refresh Rate | 3840×2160 @165Hz, 1920×1080 @ 330Hz |
| 3000:1 | Contrast Ratio | 1,500,000:1 |
| 1 ms | Response Time | 0.03 ms |
| 250 cd/m² | Brightness | 250 nits (Min), 275 nits (Typ), 1300 nits (HDR Peak) |
| W-LED | Backlight | — |
| Yes, AMD FreeSync | Adaptive Sync | Yes |
| 16.7 M | Color Gamut | 1.07 B |
| 178 ° | Horizontal Viewing Angle | — |
| 178 ° | Vertical Viewing Angle | — |
| No USB Port | USB Ports | 1 x USB Type-A |
| — | USB Port Details | 1 x USB Type-A |
| — | Headphone Jack | Yes |
| Display Port | Display Port | 2 x Display Port v1.4 |
| 1 x HDMI v1.4 Port | HDMI | 2 x HDMI v2.1 Port |
| — | Speakers | — |
| — | Other Features | — |
| -5° to 15° | Stand Tilt | -5°~20° |
| 100 x 100 mm | Wall Mounting | 100 x 100 mm |
| Yes | HDCP Support | Yes |
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