RATED
Great
7.0/10
27″ LG 27U731SA – Full Specifications
Sharpness on a budget defines the LG 27U731SA, a 27-inch IPS 4K monitor with 163 ppi, 90% DCI-P3 and 350 nits.
LG●Monitor
Display
27 in, IPS, 3840 × 2160
27
Refresh Rate
60 Hz
Brightness
350 nits
Contrast Ratio
1000:1
1000
Overview
Sharpness on a budget defines the LG 27U731SA, a 27-inch IPS 4K monitor with 163 ppi, 90% DCI-P3 and 350 nits. USB-C delivers 65W, two USB-A 2.0 ports and two HDMI 2.0 ports are included, and MaxxAudio speakers are built in. Dynamic Tone Mapping and Game Optimizer are listed. The stand is fixed, and the weight is 5.85 kg. It is a good value pick for people who want 4K sharpness and laptop charging in one box.
- 27-inch IPS 4K UHD at 163 ppi
- 90% DCI-P3, 350 nits
- USB-C 65W, 2× HDMI 2.0, 2× USB-A 2.0
- MaxxAudio speakers
- 5.85 kg, fixed stand
Pros & Cons
Pros
- Very sharp image at 163 ppi
- USB-C charging at 65W
- MaxxAudio speakers included
- Light weight at 5.85 kg
- Good colour for the price
Cons
- No height adjustment on the fixed stand
- 60 Hz refresh only, so fast games feel less smooth
- USB-A ports run at slower USB 2.0 speed
- No DisplayPort input is listed for a second PC
Score & Ratings
7.0/10
Great
Model Information
8
| Specification | Value |
|---|---|
| Brand | LG |
| Series | UltraFine |
| Model | 27U731SA |
| Model Alias | 27U731SA-WSmart Monitor 27U731SA |
| Full Product Name | LG UltraFine 27U731SA |
| Model Year | 2025 |
| Monitor Type | 4K Monitor |
| Available Colors | White |
Display & Panel
12
| Specification | Value |
|---|---|
| Screen Size | 27 in |
| Exact Diagonal | 26.96 in |
| Screen Shape | Flat |
| Aspect Ratio | 16:9 |
| Active Display Width | 596.736 mm |
| Active Display Height | 335.664 mm |
| Display Area | 87.6% |
| Panel Type | IPS |
| Backlight Type | W-LED |
| 3D Support | No |
| Screen Coating | Anti-glare / Matte |
| Coating Hardness | 3H |
27" Display Size (68.6 cm) 16:9
Resolution & Pixel Details
4
| Specification | Value |
|---|---|
| Native Resolution | 3840 × 2160 |
| Resolution Name | Ultra HD (UHD) / 4K / 2160p |
| Pixel Density | 163 ppi |
| Pixel Pitch | 0.155 mm |
Picture Quality & Color
9
| Specification | Value |
|---|---|
| Panel Bit Depth | 10-bit (8-bit + FRC) |
| FRC | Yes |
| Display Colors | 1.07 billion |
| Total Color Bits | 30-bit |
| Typical Brightness | 350 nits |
| HDR Support | Yes |
| HDR Formats |
|
| HDR10 | Yes |
| DCI-P3 Coverage | 90% |
DESK DISTANCE FIT
65cm
CompactIdeal FitWideUltra-Wide
Fills central vision comfortably at a typical desk distance — no head movement needed.
Refresh Rate, Response & Gaming
2
| Specification | Value |
|---|---|
| Refresh Rate Range | 60 Hz |
| Minimum Response Time | 5 ms |
Ports & Connectivity
12
| Specification | Value |
|---|---|
| HDMI Ports |
|
| HDMI Version | HDMI 2.0 |
| USB-C Video Input | Yes |
| DisplayPort Alt Mode | Yes |
| HDCP Support | Yes |
| HDCP Version | HDCP 2.2 |
| USB-C Input | 1× USB-C 3.2 |
| USB-C Data Speed | 5 Gbps |
| USB-C Power Delivery | 65W |
| USB-A Ports |
|
| Audio Output | 3.5 mm |
| Headphone Output | Yes |
Ports & Connections
Audio, Camera, Network & Smart Features
17
| Specification | Value |
|---|---|
| Built-In Speakers | Yes |
| Speaker Configuration | 2 × 5 W |
| Audio Technologies | MaxxAudio |
| Built-In Camera | No |
| Smart Monitor | Yes |
| Operating System | webOS 24 |
| Wi-Fi | Yes |
| Wi-Fi Standards | 802.11a / 802.11b / 802.11g / 802.11n / 802.11ac |
| Bluetooth | Bluetooth 5.0 |
| Apple AirPlay | Yes |
| Apple HomeKit | Yes |
| Smart Home Platform | LG ThinQ |
| Streaming Apps |
|
| Netflix | Yes |
| YouTube | Yes |
| Prime Video | Yes |
| Disney+ | Yes |
Ergonomics & Stand
8
| Specification | Value |
|---|---|
| VESA Mount | Yes |
| Removable Stand | Yes |
| Height Adjustment | No |
| Tilt Adjustment | Yes |
| Forward Tilt | 5° |
| Backward Tilt | 15° |
| Swivel Adjustment | No |
| Pivot Adjustment | No |
Dimensions, Weight & Design
6
| Specification | Value |
|---|---|
| Dimensions With Stand | 613 × 452 × 210 mm |
| Dimensions Without Stand | 613 × 373 × 46 mm |
| Weight With Stand | 5.85 kg |
| Weight Without Stand | 4.55 kg |
| Stand Depth | 210 mm |
| Bezel Design | 3-sided virtually borderless design |
Power & Operating Conditions 10
| Specification | Value |
|---|---|
| 110V Input Range | 100–120V |
| 220V Input Range | 220–240V |
| AC Frequency | 50–60 Hz |
| Average Power Consumption | 30.2 W |
| Sleep Consumption | 0.5 W |
| Off Consumption | 0.3 W |
| Operating Temperature | 0–40°C |
| Operating Humidity | 0–80% |
| Storage Temperature | -20–60°C |
| Storage Humidity | 0–85% |
Eye Care, Protection & Additional Features
8
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Reader Mode | Yes |
| Ambient Light Sensor | Yes |
| Desktop Control Software | Dual Controller |
| Monitor Management Software | LG Switch |
| AI Visual | Super Resolution+ |
| Smart Energy Saving | Yes |
| Additional Monitor Features |
|
Certifications, Standards & Licenses 7
| Specification | Value |
|---|---|
| RoHS | Compliant |
| CE | Certified |
| FCC-B | Certified |
| J-Moss | Compliant |
| PSE | Certified |
| UL | UL (cUL) |
| VCCI | Certified |
Included Accessories
2
| Specification | Value |
|---|---|
| HDMI Cable | Included |
| Remote Control | Included |
Packaging Information 2
| Specification | Value |
|---|---|
| Package Dimensions | 768 × 435 × 130 mm |
| Package Weight | 8.05 kg |
⚡
Estimated Running Cost
Based on this product's rated power draw, not an independent lab measurement — actual usage varies with settings and content.
Daily₹3.12
Monthly₹93.60
Annually₹1,139
Draws less power than 57% of the 701 comparable displays we track.