ASUS 27-inch 1440p 300Hz Gaming Monitor Review UK 2026
Amazon 4.2/5 · 33£248.99
The strongest lg monitors under £400 we tested. Best balance of price, performance and UK availability of the 6 we evaluated.
Find the best LG monitors under £400. Compare specs, features and prices for budget-friendly displays.
Why our top pick beat the field, plus the rest of the lg monitors under £400 we tested.
The strongest lg monitors under £400 we tested. Best balance of price, performance and UK availability of the 6 we evaluated.
Different brand · AOC
Different brand · KOORUI
Different brand · AOC
Different brand · AOC
How we tested
Independent UK tech editorial — no paid placements.
Read our process ↓How we picked
Our editors evaluated 6 Monitor options against the criteria readers actually weigh up: price, real-world performance, build quality, warranty, and UK availability. Picks lean toward what we'd recommend to a friend buying today, not specs-on-paper winners.
Resolution and screen size present the main trade-off at this price point, though curved monitors under £200, best monitors for photo editing under £200, or 32-inch monitors under £200 offer another budget-friendly alternative. 4K monitors under £400 typically max out at 24 inches, whilst 27-inch displays usually offer 1440p resolution instead. Consider your primary use: creative professionals benefit from 4K and colour accuracy, whilst gamers may prioritise refresh rates and response times.
Panel technology matters significantly. IPS panels offer superior colour accuracy and wider viewing angles, making them better for detailed work. TN panels are cheaper but sacrifice colour accuracy for faster response times. For gaming, modern IPS panels at 144Hz or higher refresh rates provide a good compromise between gaming performance and everyday usability. Pairing your monitor with quality best gaming peripherals will further enhance your setup.
Connectivity is crucial for your workflow. USB-C with power delivery is invaluable for laptop users, allowing single-cable connections that charge whilst transmitting video. Standard HDMI and DisplayPort are sufficient for desktop setups, though multiple inputs provide flexibility for switching between devices.
Refresh rate and response time should match your primary task. Gamers need 120Hz or higher for smooth gameplay, whilst office work and creative tasks are satisfied with standard 60Hz. Response times below 4ms suit gaming, but anything under 8ms is acceptable for general use.
Colour accuracy specifications like DCI-P3 or Adobe RGB coverage indicate professional-grade displays, useful for photography and video work. For a comprehensive overview of best PC accessories and monitors, consult our full buyer's guide. Standard sRGB coverage is sufficient for everyday computing and casual gaming.
Yes, LG offers 4K monitors under £400, though they are typically 24 inches. Models like the 24UP550 provide 3840x2160 resolution with excellent colour accuracy at this price point. If you need larger 4K displays, you may need to stretch your budget slightly.
The LG 27GN950 and 27GP850 are excellent gaming choices, offering 1440p resolution with 144Hz and 165Hz refresh rates respectively. Both feature fast 1ms response times and IPS panels for better colours than older gaming monitors, providing a good balance between gaming performance and general use.
IPS panels offer superior colour accuracy and wider viewing angles, making them better for creative work and everyday tasks. TN panels provide faster response times and are cheaper, traditionally preferred for gaming, though modern IPS panels now offer competitive refresh rates. For versatility under £400, IPS is generally the better choice.
Some models like the 24UP550 and 27UP550 include USB-C with power delivery, allowing you to charge and connect a laptop with a single cable. However, not all budget models feature USB-C, so check specifications if this is important for your setup.
24-inch monitors offer 4K resolution but less workspace, ideal for detail-focused work. 27-inch monitors typically max out at 1440p but provide more screen real estate for multitasking. Choose based on your desk space and primary use case rather than pursuing 4K if you need larger displays.
Guide
MSI MAG 273QP QD-OLED X24 26.5 Review UK 2026
Guide
Samsung Odyssey G4B LS25BG400EU Gaming Monitor Review UK 2026
Compatibility guide
Best Monitors for ASUS DUAL RTX5070 OC, PCIe5, 12GB DDR7, HDMI, 3 DP, 2572MHz Clock, Overclocked, Compact SFF-Ready
Head-to-head
Best AOC Monitors Under £300
Head-to-head
Best AOC Monitors Under £150
Compatibility guide
Best Monitors for MSI GeForce RTX 3050 VENTUS 2X XS 8G OC Gaming Graphics Card - 8GB GDDR6X, 1807 MHz, PCI Express Gen 4 x 8, 128-bit, 1x DP v 1.4a, HDMI 2.1