EX321UX

Written analysis

EX321UX at a glance

The EX321UX is a 31.5" IPS-ADS monitor at 3840×2160 and 144 Hz. The listed aspect ratio is 1.778:1, 16:9. The backlight is listed as Mini-LED.

Best fit: high-refresh gaming and fast-paced entertainment, provided the GPU can feed this resolution.

Panel and image

Overall quality is 91.0, with 89.8 work and 89.8 play. Pixel density is listed at 140 PPI. Typical brightness is 700 nits with a peak of 1000 nits. Contrast is listed as 1000:1. The coating is Anti-glare/Matte (3H). The listed pixel count sits in the high-resolution class used by the work and overall scores.

Color and HDR

Recorded gamut coverage is 99% DCI-P3. Color depth is listed as 10-bit FRC. HDR is listed as HDR10, DisplayHDR 1000. Local dimming is recorded as Mini LED. The work score is a solid everyday office result rather than a specialist color-critical display.

Motion and sync

Refresh is listed at 144 Hz. Response time is listed as 1.00 ms. Input lag is listed as 4.30 ms. The play score covers mainstream gaming and media; competitive high-refresh use still depends on the GPU keeping up. Pair this resolution with the GPU table before assuming native high settings.

Ergonomics and connectivity

Stand and mount options are listed as Height · Swivel · Tilt · VESA (100x100mm). Recorded inputs include 1 x USB 3.2 (Type-C; Gen 1; 5 Gbps: upstream; 65W; DP Alt Mode), 1 x USB 3.2 (Type-C; Gen 1; 5 Gbps: upstream; 15W; data only), 1 x USB 3.2 (Type-C; Gen 1; 5 Gbps: downstream; 7.5W), 1 x USB 3.2 (Type-B; Gen 1; 5 Gbps: upstream), 3 x USB 3.2 (Type-A; Gen 1; 5 Gbps: downstream), 3 x HDMI 2.1, 1 x DisplayPort 2.1, 1 x 3.5 mm Audio Out.

Buying verdict

Overall quality is 91.0, a flagship result. Buy it when the panel class, color, and motion extras will actually be used.

At the recorded Amazon price, quality / price is 17.6. This is a feature-first purchase; compare nearby screens if several extras would go unused.

Work / price is 17.3 and play / price is 12.1.