# Which OLED monitor has the largest screen size? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which OLED monitor has the largest screen size?

## Products

### LG OLED42C6PUA
```yaml
product: lg-oled42c6pua
brand: LG
price_gbp: 808.77
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ports: 4 x HDMI 2.1, 2 x USB 2.0, Ethernet, SPDIF optical, headphone, RF input
resolution: 3840 x 2160
hdr_support: Dolby Vision / HDR10 / HLG
screen_size: 42 in
refresh_rate: 120 Hz
response_time: less than 0.1ms
contrast_ratio: Infinite
```

- **Price:** £808.77 [^1]
- **Summary:** The LG OLED42C6PUA is a 42 in OLED 4K TV with a native 120 Hz refresh rate and very fast pixel response (less than 0.1ms). It supports Dolby Vision, HDR10, and HLG and is set up for gaming with HDMI 2.1 features including 4K 120Hz support. It suits gamers and anyone who wants an OLED-style monitor-sized screen with high refresh and strong HDR formats.
- **Ideal For:** If you want the largest screen size in the OLED monitor category, the OLED42C6PUA's 42 in size is larger than smaller OLED TV/monitor sizes, while still delivering up to 165 Hz VRR and a native 120 Hz refresh rate.
- **Additional Sources:** [^2], [^3], [^1], [^2], [^3]

### LG UltraGear 45GX950A
```yaml
product: lg-ultragear-45gx950a
brand: LG
price_gbp: 1137.52
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ports: DisplayPort 2.1, HDMI 2.1, USB-C (PD 90W), Headphone out (4-pole Sound+Mic)
resolution: 5120 x 2160
hdr_support: DisplayHDR 400 True Black
screen_size: 44.5 in
refresh_rate: 165Hz
response_time: 0.03ms (GTG)
contrast_ratio: 1500000:1
```

- **Price:** £1137.52 [^4]
- **Summary:** LG UltraGear 45GX950A is a 44.5 in 5K2K (5120 x 2160) OLED ultrawide gaming monitor with 0.03ms (GTG) response time and up to 165Hz refresh rate. It supports VESA DisplayHDR 400 True Black for HDR gaming and includes HDMI 2.1, DisplayPort 2.1, and USB-C with 90W power delivery. It's built for gamers who want a large, curved OLED experience with fast motion and strong HDR blacks.
- **Ideal For:** For the largest-screen OLED monitor, the LG UltraGear 45GX950A stands out with a 44.5 in screen size paired with 5K2K OLED and 165Hz refresh rate.
- **Additional Sources:** [^4]

---
## References & Sources
[^1]: Home Depot, accessed 2026-06-27. https://www.homedepot.com/p/LG-Electronics-42-C6-OLED-4K-Ultra-HD-Smart-TV-2026-OLED42C6PUA/341947192
[^2]: Best Buy, accessed 2026-06-27. https://www.bestbuy.com/product/lg-42-class-c6-series-oled-evo-ai-4k-smart-webos-tv-2026/JJ8VPZZ7SW
[^3]: B&H Photo Video, accessed 2026-06-27. https://www.bhphotovideo.com/c/product/1952863-REG/lg_oled42c6pua_42_4k_hdr_smart.html
[^4]: Best Buy, accessed 2026-06-27. https://www.bestbuy.com/product/lg-ultragear-45-oled-dual-mode-5k2k-wuhd-165hz-wfhd-330hz-0-03ms-g-sync-freesync-premium-pro-gaming-monitor-black/JJ8VPZWPY9