
31.5″ LG 32U721SA – Full Specifications
The LG 32U721SA gives you a sizeable 4K screen with docking basics at a restrained price.
Overview
The LG 32U721SA gives you a sizeable 4K screen with docking basics at a restrained price. The 31.5-inch VA panel runs at 3840 × 2160 and covers 99% sRGB and 90% DCI-P3, with USB-C power delivery at 65W and two USB-A 2.0 ports. Two HDMI 2.0 ports and built-in speakers cover the rest, and it weighs 6.6 kg. Brightness is 250 nits and the stand is fixed. For people who want a large 4K screen without paying for a premium panel, that docking set is the main attraction.
- 31.5-inch VA 4K UHD at 140 ppi
- 99% sRGB and 90% DCI-P3, 250 nits
- USB-C 65W, 2× HDMI 2.0, 2× USB-A 2.0
- 60 Hz, 5 ms response
- Speakers, 6.6 kg, fixed stand
Pros & Cons
- USB-C charging at 65W suits laptop docking
- High VA contrast looks good for movies and documents
- Built-in speakers included
- Light for a 32-inch monitor at 6.6 kg
- Good colour coverage at 99% sRGB
- 250 nits is dim in bright rooms
- Fixed stand with no height adjustment
- USB-A ports run at slower USB 2.0 speed
- 60 Hz refresh only
Score & Ratings
| Specification | Value |
|---|---|
| Brand | LG |
| Model | 32U721SA |
| Model Alias | Smart Monitor 32U721SA32U721SA-W |
| Full Product Name | LG 32U721SA |
| Model Year | 2025 |
| Monitor Type | 4K Monitor |
| Available Colors | White |
| Specification | Value |
|---|---|
| Screen Size | 31.5 in |
| Exact Diagonal | 31.54 in |
| Screen Shape | Flat |
| Aspect Ratio | 16:9 |
| Active Display Width | 697.306 mm |
| Active Display Height | 392.234 mm |
| Display Area | 89.27% |
| Panel Type | VA |
| Backlight Type | W-LED |
| 3D Support | No |
| Screen Coating | Anti-glare / Matte |
31.5" Display Size (80 cm) 16:9
| Specification | Value |
|---|---|
| Native Resolution | 3840 × 2160 |
| Resolution Name | Ultra HD (UHD) / 4K / 2160p |
| Pixel Density | 140 ppi |
| Pixel Pitch | 0.182 mm |
| Specification | Value |
|---|---|
| Panel Bit Depth | 10-bit (8-bit + FRC) |
| FRC | Yes |
| Display Colors | 1.07 billion |
| Total Color Bits | 30-bit |
| Typical Brightness | 250 nits |
| HDR Support | Yes |
| HDR Formats |
|
| HDR10 | Yes |
| sRGB Coverage | 99% |
| DCI-P3 Coverage | 90% |
Fills more of your view — great for productivity, may need slight head turns toward the edges.
| Specification | Value |
|---|---|
| Refresh Rate Range | 60 Hz |
| Minimum Response Time | 5 ms |
| Specification | Value |
|---|---|
| HDMI Ports |
|
| HDMI Version | HDMI 2.0 |
| HDMI CEC | Yes |
| USB-C Video Input | Yes |
| DisplayPort Alt Mode | Yes |
| USB-C Input | 1× USB-C 3.0 |
| USB-C Power Delivery | 65W |
| USB-A Ports |
|
Ports & Connections
| Specification | Value |
|---|---|
| Built-In Speakers | Yes |
| Speaker Configuration | 2 × 5 W |
| 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 | Yes |
| Wi-Fi Direct | Yes |
| ScreenShare | Yes |
| Apple AirPlay | Yes |
| Apple HomeKit | Yes |
| Smart Home Platform | LG ThinQ |
| Voice Control | Yes |
| Magic Remote Support | Yes |
| IoT Support | Yes |
| Streaming Apps |
|
| Netflix | Yes |
| YouTube | Yes |
| Prime Video | Yes |
| Disney+ | Yes |
| Apple TV+ | Yes |
| 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 |
| Specification | Value |
|---|---|
| Dimensions With Stand | 713.7 × 510.5 × 210.8 mm |
| Dimensions Without Stand | 713.7 × 429.3 × 45.7 mm |
| Weight With Stand | 6.6 kg |
| Weight Without Stand | 5.3 kg |
| Stand Depth | 210.8 mm |
Power & Operating Conditions 9
| Specification | Value |
|---|---|
| 110V Input Range | 100–120V |
| 220V Input Range | 220–240V |
| AC Frequency | 50–60 Hz |
| Sleep Consumption | 0.5 W |
| Off Consumption | 0.3 W |
| Operating Temperature | 0–40°C |
| Operating Humidity | 10–80% |
| Storage Temperature | -20–60°C |
| Storage Humidity | 5–85% |
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| Reader Mode | Yes |
| Auto Brightness | Yes |
| Smart Energy Saving | Yes |
Certifications, Standards & Licenses 4
| Specification | Value |
|---|---|
| CE | Certified |
| FCC-B | Certified |
| ErP | Compliant |
| UL | UL (cUL) |
| Specification | Value |
|---|---|
| HDMI Cable | Included |
| Remote Control | Included |
Packaging Information 2
| Specification | Value |
|---|---|
| Package Dimensions | 876.3 × 502.9 × 132 mm |
| Package Weight | 9.2 kg |
Estimated Running Cost
Based on this product's rated power draw, not an independent lab measurement — actual usage varies with settings and content.
Draws less power than 57% of the 701 comparable displays we track.
