AOC launches U32U4 4K QD-OLED monitor with 96 W USB-C charging

The 31.5-inch monitor has gone on sale in China for CNY 6,499, combining a 4K resolution of 3,840 × 2,160 pixels with a 120 Hz refresh rate. It uses Samsung Display's Penta Tandem QD-OLED technology, featuring five stacked light-emitting layers designed to improve brightness and panel longevity.

According to the published specifications, the U32U4 supports native 10-bit color, covers 99% of the DCI-P3 color space and reaches a claimed peak HDR brightness of 1,000 nits. AOC also advertises a 1,500,000:1 contrast ratio and a 0.03 ms gray-to-gray response time, although these figures remain manufacturer claims.

Connectivity is another selling point. Alongside HDMI 2.1 and DisplayPort, the monitor offers two USB-C connections providing up to 96 W and 15 W respectively. A built-in KVM switch, two 5 W speakers and an adjustable stand complete the package.

Interestingly, AOC introduced the similarly specified U32U4D in China on October 24, less than three weeks before the U32U4 appeared. Both monitors share a 31.5-inch 4K QD-OLED panel, a 120 Hz refresh rate and 96 W USB-C charging. The exact differences between the two models remain unclear, although their reported launch prices differ slightly.

Notebookcheck also recently covered AOC's U32G5D, which uses related panel technology but offers a faster 180 Hz refresh rate at a considerably lower Chinese launch price. With three similarly equipped monitors competing for attention, AOC isn't making the buying decision particularly straightforward. International availability and pricing for the U32U4 remain unconfirmed.