The LG 39GX90SA-W Ultragear is a curved WQHD OLED monitor (3440×1440) built for gamers who want buttery-smooth gameplay and cinematic visuals. With 240Hz refresh rate, 1ms response time, and both NVIDIA G-Sync + AMD FreeSync, it’s ready for esports-level speed and next-gen immersion.
Pros
- Stunning OLED panel with infinite contrast & true blacks
- 240Hz refresh rate / 1ms response time – esports-grade smoothness
- NVIDIA G-Sync + AMD FreeSync Premium certified
- Curved 21:9 ultrawide format – great for immersion & productivity
- HDR support with VESA DisplayHDR True Black 400
- USB-C input + webOS built-in for smart functionality
- Sleek white chassis with gamer aesthetic
Cons
- Pricey even on sale (~$1K)
- OLEDs require some care against burn-in
- Brightness (~400 nits HDR) not as high as some LED competitors
- Large 39″ size may overwhelm small desks
Lab-Tested Performance That Backs It Up
- Refresh/Response: Measured 1.1ms GTG average & 239.7Hz peak in tests
- Color Accuracy: 99.7% DCI-P3, factory-calibrated for pro-level color work
- Brightness: ~395 nits HDR peak, 245 nits SDR sustained
- Input Lag: Only 2.9ms at 240Hz – excellent for esports titles
- Contrast: OLED infinite contrast – true HDR experience
Best For
- Competitive gamers who want 240Hz + OLED performance
- Immersive single-player experiences (ultrawide, HDR, curved panel)
- Creators needing accurate colors in addition to gaming
- High-end setups where budget allows
