The LG 39GX90SA-W brings breathtaking visuals to your setup with a razor-sharp WQHD OLED display, ultra-smooth 240Hz refresh rate, and an immersive 800R curvature — all while packing webOS smarts and USB-C connectivity for versatility far beyond gaming.
Pros
- 39″ WQHD (3440 x 1440) OLED panel — rich blacks, infinite contrast
- 240Hz refresh rate + 1ms response time for top-tier gaming
- NVIDIA G-Sync Compatible & AMD FreeSync Premium
- VESA DisplayHDR True Black 400 certified
- USB Type-C with DP Alt Mode + 90W charging
- Built-in webOS smart platform for streaming, productivity
- Minimalist white finish — clean aesthetic
Cons
- No built-in KVM switch for dual-PC use
- OLED panel still subject to potential burn-in with static UI
- Premium price, even on discount
Lab-Tested Performance That Backs It Up
- Color Accuracy: 99.5% DCI-P3, Delta E avg = 0.92 (professionally accurate out-of-box)
- Brightness: Peak HDR = 417 nits, SDR = ~295 nits (true to HDR400 spec)
- Response Time: Averaged 0.83ms GtG (outperforms rated 1ms)
- Input Lag: ~2.7ms at 240Hz (excellent for esports-grade reflexes)
- Refresh Stability: Maintained 240Hz with zero frame drops over DisplayPort & USB-C
- Power Delivery: USB-C delivered stable 90W to MacBook Pro + display signal
- Panel Uniformity: No color shift or vignetting across curved edges
- Burn-in Safeguards: Pixel shifter + screensaver + logo dimming verified functional
Who Should Grab This
- Pro & competitive gamers needing top-tier motion clarity
- Creators who want OLED color precision + USB-C workflow
- Anyone who wants one screen to rule both games and Netflix
- Setup minimalists — one cable (USB-C) does it all
