ViewSonic has introduced the XG323B-4K-OLED, a new 31.5-inch OLED gaming monitor that sits below the XG323-4K-OLED2. Both monitors look the same and use the same panel size, but the new model comes with lower refresh rates and fewer high-end features.


The XG323B-4K-OLED supports dual display modes. It runs at 3840×2160 resolution with a 165 Hz refresh rate and can switch to 1920×1080 at 330 Hz. ViewSonic says the new OLED panel offers a fast 0.03 ms GTG response time.
The monitor includes two HDMI 2.1 ports, two DisplayPort 1.4 ports, one USB-A port, and one audio output. It does not include a USB-C port with Power Delivery. The display works with both G-Sync and FreeSync for tear-free gaming.

The screen is an OLED panel with a 31.5-inch viewable area, a 16:9 aspect ratio, and a contrast ratio of 1,500,000:1. It has a glossy surface, native 10-bit color, and 1.07 billion colors. Brightness is rated at 250 cd/m² minimum and 275 cd/m² typical, while HDR peak brightness reaches 1,300 cd/m². The monitor covers 98.5 percent of the DCI-P3 color gamut and maintains professional-grade color accuracy with ΔE less than 2.
Other features include hardware low blue light, HDR technology, e-sports crosshair mode, PIP and PBP, eagle eye view, night vision view, and cat’s eye view. It supports HDCP 2.2 and 2.3.
ViewSonic has not revealed pricing and availability yet, but the full specifications suggest that a launch should follow soon.
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