# 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: 787.33
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:** £787.33 [^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]

### LG UltraGear 45GX950A
```yaml
product: lg-ultragear-45gx950a
brand: LG
price_gbp: 1107.36
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:** £1107.36 [^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.

### Samsung Odyssey OLED G9 G95SD
```yaml
product: samsung-odyssey-oled-g9-g95sd
brand: Samsung
price_gbp: 660.84
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ports: 1 x DisplayPort 1.4, 1 x HDMI 2.1, 1 x Micro HDMI 2.1, 3 x USB-C, 1 x headphone jack
resolution: 5120 x 1440
hdr_support: HDR10, HDR10+ Gaming, VESA DisplayHDR 400 True Black
screen_size: 49 in
refresh_rate: 240Hz
response_time: 0.03ms
contrast_ratio: 1000000:1
```

- **Price:** £660.84 [^5]
- **Summary:** The Samsung Odyssey OLED G9 G95SD is a 49 in super-ultrawide QD-OLED monitor with Dual QHD resolution, a 240Hz refresh rate, and a 0.03ms response time. Its OLED panel delivers deep blacks and HDR support, while the 32:9 curved display suits competitive gaming, immersive entertainment, and wide multitasking setups.
- **Ideal For:** It suits anyone seeking the OLED monitor with the largest screen size because its 49 in 32:9 curved display provides expansive viewing space while retaining a sharp 5120 x 1440 resolution and fast 240Hz performance.
- **Additional Sources:** [^6], [^7]

### ASUS ROG Swift OLED PG49WCD
```yaml
product: asus-rog-swift-oled-pg49wcd
brand: ASUS
price_gbp: 76035.82
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ports: 1 x DisplayPort 1.4 DSC, 1 x HDMI 2.1, 1 x USB-C DP Alt Mode with 90W Power Delivery, 2 x USB 3.2 Gen 1 Type-A, 2 x USB 2.0 Type-A, earphone jack, SPDIF optical out
resolution: 5120 x 1440
hdr_support: VESA DisplayHDR 400 True Black
screen_size: 49 in
refresh_rate: 144Hz
response_time: 0.03ms GTG
contrast_ratio: 1,500,000:1
```

- **Price:** £76035.82 [^8]
- **Summary:** The ASUS ROG Swift OLED PG49WCD is a 49 in curved super-ultrawide QD-OLED monitor with a 5120 x 1440 resolution, 144Hz refresh rate, and extremely fast 0.03ms response time. Its HDR support, high contrast, USB-C connectivity, and Smart KVM make it well suited to immersive gaming and demanding productivity setups.
- **Ideal For:** This specifically suits someone asking which OLED monitor has the largest screen size because its 49 in QD-OLED panel provides an exceptionally large 32:9 viewing area while retaining a 5120 x 1440 resolution and 144Hz refresh rate.

### LG UltraGear OLED 39GX950B
```yaml
product: lg-ultragear-oled-39gx950b
brand: LG
price_gbp: 1180.46
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
ports: 1 x DisplayPort 2.1, 2 x HDMI 2.1, 1 x USB-C with 90W power delivery, 2 x USB-A, headphone out
resolution: 5120 x 2160
hdr_support: VESA DisplayHDR True Black 500
screen_size: 39 in
refresh_rate: 165 Hz; 330 Hz at 2560 x 1080
response_time: 0.03 ms
contrast_ratio: 1850000:1
```

- **Price:** £1180.46 [^9]
- **Summary:** The LG UltraGear OLED 39GX950B is a 39 in curved 5K2K OLED gaming monitor with a 165 Hz refresh rate and exceptionally fast 0.03 ms response time. Its dual-mode display can switch to 330 Hz at a lower resolution, making it suitable for immersive gaming, competitive play, and demanding multitasking.
- **Ideal For:** It suits the question Which OLED monitor has the largest screen size? because its 39 in OLED panel provides a larger display than typical 27 in, 32 in, and 34 in OLED monitors while retaining a sharp 5120 x 2160 resolution.

---
## References & Sources
[^1]: Best Buy, accessed 2026-09-13. https://www.bestbuy.com/product/lg-42-class-c6-series-oled-evo-ai-4k-smart-webos-tv-2026/JJ8VPZZ7SW
[^2]: B&H Photo Video, accessed 2026-09-13. https://www.bhphotovideo.com/c/product/1952863-REG/lg_oled42c6pua_42_4k_hdr_smart.html
[^3]: Home Depot, accessed 2026-09-13. https://www.homedepot.com/p/LG-Electronics-42-C6-OLED-4K-Ultra-HD-Smart-TV-2026-OLED42C6PUA/341947192
[^4]: Best Buy, accessed 2026-09-13. 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
[^5]: Samsung, accessed 2026-09-13. https://www.samsung.com/us/monitors/gaming/49-inch-odyssey-oled-g9-g95sd-dual-qhd-240hz-03ms-g-sync-sku-ls49dg956snxgo/
[^6]: Abt, accessed 2026-09-13. https://www.abt.com/Samsung-Odyssey-OLED-G9-G95SD-Curved-Gaming-Monitor-49-Inch-Dual-QHD-240Hz-0.03ms-in-Metal-LS49DG956SNXGO/p/211845.html
[^7]: Galaxus, accessed 2026-09-13. https://www.galaxus.at/en/s1/product/samsung-odyssey-oled-g9-g95sd-5120-x-1440-pixels-49-monitor-49654653
[^8]: Netcodex, accessed 2026-09-13. https://netcodex.ph/product/asus-rog-swift-pg49wcd-49-qd-oled-gaming-monitor-144hz-ultra-wide-display/
[^9]: Coolblue, accessed 2026-09-13. https://www.coolblue.de/en/product/980738/lg-ultragear-evo-39gx950b-oled-curved.html