RATED
Great
7.0/10
31.5″ LG 32U721SB – Full Specifications
The LG 32U721SB is a 31.5-inch VA 4K monitor that delivers 140 ppi, which keeps text and photos sharp at normal desk distance.
LG●Monitor
Display
31.5 in, VA, 3840 × 2160
31.5
Refresh Rate
60 Hz
Brightness
250 nits
Contrast Ratio
3000:1
3000
Pros & Cons
Pros
- 4K UHD resolution reaches 140 ppi on 31.5 inches for sharp text and images
- USB-C with DP Alt Mode and 65W power delivery handles video and laptop charging over one cable
- webOS smart platform with streaming apps lets the screen work without a PC
- 3,000:1 static contrast from the VA panel gives deeper blacks than typical IPS
- 90% DCI-P3 coverage goes beyond basic sRGB-only panels
- 2 USB-A downstream ports act as a small peripheral hub
- 10-bit (8-bit + FRC) panel for smoother gradients and wider tonal range
Cons
- 60 Hz maximum refresh limits it to office and media rather than fast gaming
- Tilt-only stand has no height adjustment
- HDR10 input support has no DisplayHDR tier, so HDR impact stays limited
- 250 nits typical brightness is modest for bright rooms
- VA panels typically show slower dark-scene transitions than IPS, despite the 5 ms rating
- No FreeSync or G-Sync tag is listed, so variable refresh support is unconfirmed
- 4K at 60 Hz needs scaling adjustments for comfortable text on smaller desks
Score & Ratings
7.0/10
Great
Model Information
7
| Specification | Value |
|---|---|
| Brand | LG |
| Model | 32U721SB |
| Model Alias | Smart Monitor 32U721SB32U721SB-W |
| Full Product Name | LG 32U721SB |
| Model Year | 2026 |
| Monitor Type | 4K Monitor |
| Available Colors | White |
Display & Panel
11
| 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 | 89.29% |
| Panel Type | VA |
| Backlight Type | W-LED |
| 3D Support | No |
| Screen Coating | Anti-glare / Matte |
31.5" Display Size (80 cm) 16:9
Resolution & Pixel Details
4
| Specification | Value |
|---|---|
| Native Resolution | 3840 × 2160 |
| Resolution Name | Ultra HD (UHD) / 4K / 2160p |
| Pixel Density | 140 ppi |
| Pixel Pitch | 0.182 mm |
Picture Quality & Color
10
| 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 |
| HDR10 | Yes |
| sRGB Coverage | 99% |
| DCI-P3 Coverage | 90% |
DESK DISTANCE FIT
65cm
CompactIdeal FitWideUltra-Wide
Fills more of your view — great for productivity, may need slight head turns toward the edges.
Refresh Rate, Response & Gaming
6
| Specification | Value |
|---|---|
| Refresh Rate Range | 60 Hz |
| Minimum Response Time | 5 ms |
| Black Stabilizer | Yes |
| Crosshair | Yes |
| FPS Counter | Yes |
| Dynamic Action Sync | Yes |
Ports & Connectivity
10
| Specification | Value |
|---|---|
| HDMI Ports | 2× HDMI 2.0 |
| HDMI Version | HDMI 2.0 |
| HDMI CEC | Yes |
| USB-C Video Input | Yes |
| DisplayPort Alt Mode | Yes |
| HDCP Support | Yes |
| HDCP Version | HDCP 2.2 |
| USB-C Input | 1× USB-C 3.0 |
| USB-C Power Delivery | 65W |
| USB-A Ports | 2× USB-A 2.0 |
Ports & Connections
Audio, Camera, Network & Smart Features
22
| Specification | Value |
|---|---|
| Built-In Speakers | Yes |
| Speaker Configuration | 2 × 5 W |
| Built-In Camera | No |
| Smart Monitor | Yes |
| Operating System | webOS |
| 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 | NetflixYouTubePrime VideoDisney+Apple TV+ |
| Netflix | Yes |
| YouTube | Yes |
| Prime Video | Yes |
| Disney+ | Yes |
| Apple TV+ | 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
5
| Specification | Value |
|---|---|
| Dimensions With Stand | 714 × 510 × 210 mm |
| Dimensions Without Stand | 714 × 429 × 46 mm |
| Weight With Stand | 6.2 kg |
| Weight Without Stand | 5.1 kg |
| Stand Depth | 210.8 mm |
Power & Operating Conditions
11
| Specification | Value |
|---|---|
| 110V Input Range | 100–120V |
| 220V Input Range | 220–240V |
| AC Frequency | 50–60 Hz |
| Average Power Consumption | 34 W |
| Maximum Power Consumption | 140 W |
| 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% |
Eye Care, Protection & Additional Features
6
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| Reader Mode | Yes |
| Auto Brightness | Yes |
| Monitor Management Software | LG Switch |
| Smart Energy Saving | Yes |
Certifications, Standards & Licenses
7
| Specification | Value |
|---|---|
| RoHS | Compliant |
| CE | Certified |
| FCC-B | Certified |
| ErP | Compliant |
| J-Moss | Compliant |
| PSE | Certified |
| UL | UL (cUL) |
Included Accessories
4
| Specification | Value |
|---|---|
| HDMI Cable | Included |
| USB-C Cable | Included |
| USB Type-C Cable | Included |
| Remote Control | Included |
Packaging Information
5
| Specification | Value |
|---|---|
| Package Dimensions | 877 × 502 × 131 mm |
| Package Width | 877 mm |
| Package Height | 502 mm |
| Package Depth | 131 mm |
| Package Weight | 8.8 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—
Monthly—
Annually—
Uses about 62% less power than the average we track in this category.
Reviews
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT
SHEET № 32U721SB