LG PK640S Series 55"
The integrated webOS signage platform with RS-232 control and a 16/7 duty cycle makes this display a purpose-built tool for commercial environments, not a consumer TV. Its slim design and embedded content management software simplify deployment for networked digital signage without external players. This display is best for corporate or hospitality settings needing a reliable, remotely manageable 55-inch 4K screen for information boards and lobby displays.
Screen 55"
Resolution 3840x2160
Panel LED
Refresh 60 Hz
HDR HDR10, HLG
smart platform webOS
hdmi version 2.0
44 Overall Score
Price $650
Snapshot
Pros & Cons
Pros
- Strong display (68th percentile) 68th
Cons
- Below average social proof (11th percentile)
- Below average smart (32nd percentile)
The proof
Performance
Specifications
Full Specifications
Display
| Size | 55" |
| Resolution | 4K |
| Panel Type | LED |
| Backlight | Direct LED |
| Aspect Ratio | 16:9 |
| Curved | No |
Picture Quality
| Brightness | 300 nits |
| Contrast Ratio | 1200:1 |
HDR
| HDR Formats | HDR10, HLG |
| Dolby Vision | No |
| HDR10+ | No |
| HLG | Yes |
Gaming
| Refresh Rate | 60 Hz |
| Response Time | 8 |
| ALLM | No |
| Game Mode | No |
Smart TV
| Platform | webOS |
Audio
| Speaker Config | 2 |
| Wattage | 20 |
| Dolby Atmos | No |
| eARC | Yes |
Connectivity
| HDMI Ports | 2 |
| HDMI Version | 2 |
| USB Ports | 1 |
| Wi-Fi | Wi-Fi 5 |
| Bluetooth | Yes |
| Ethernet | Yes |
| Optical Audio | Yes |
| VESA Mount | 200x300 |
Power & Size
| Power | 113 |
| Energy Star | No |
| Weight | 10.2 kg / 22.5 lbs |
vs Competition
| Spec | LG PK640S Series 55" | Sony BRAVIA 9 K85XR90 | Samsung Neo QLED QN70F | Hisense U8 Series 100U8QG | TCL QM6K Series 55QM6K | Roku Plus Series 65R6C7 |
|---|---|---|---|---|---|---|
| Screen Size | 55 | 85 | 75 | 99.5 | 55 | 65 |
| Resolution | 3840x2160 | 3840x2160 | 3840x2160 | 3840x2160 | 3840x2160 | 3840x2160 |
| Panel Type | LED | Mini-LED | Mini-LED | Mini-LED | QLED | Mini-LED |
| Refresh Rate | 60 | 120 | 120 | 165 | 144 | 60 |
| Hdr | HDR10, HLG | HDR 10, Hybrid Log-Gamma (HLG), Dolby Vision | HDR10+ | Dolby Vision, HDR 10+, HDR 10, Hybrid Log-Gamma (HLG) | Dolby Vision, HDR10+, HDR10, HLG | Dolby Vision, HDR 10+, Hybrid Log-Gamma (HLG) |
| Smart Platform | webOS | Google TV | Tizen | Google TV | Google TV | Roku TV |
| Dolby Vision | false | true | false | true | true | true |
| Dolby Atmos | false | true | true | true | true | true |
| Hdmi Version | 2.0 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 |
| Compare | Compare | Compare | Compare | Compare |
| Product | HDR | Audio | Smart | Gaming | Display | Connectivity | Social Proof | Picture Quality |
|---|---|---|---|---|---|---|---|---|
| LG PK640S Series 55" | 64.2 | 50.8 | 32.3 | 43.3 | 67.5 | 53.2 | 10.8 | 36.5 |
| Sony BRAVIA 9 K85XR90 Compare | 77.4 | 97.1 | 91.8 | 80.3 | 94.8 | 93.1 | 82.4 | 79.2 |
| Samsung Neo QLED QN70F Compare | 71.5 | 79.2 | 93.4 | 88.9 | 89.5 | 89.5 | 94.6 | 79.2 |
| Hisense U8 Series 100U8QG Compare | 91.9 | 98.3 | 95.9 | 95.3 | 94.8 | 86.7 | 77.5 | 98.8 |
| TCL QM6K Series 55QM6K Compare | 98.9 | 88.6 | 97.6 | 93.8 | 77.3 | 89.5 | 88.3 | 98.8 |
| Roku Plus Series 65R6C7 Compare | 77.4 | 83.1 | 99.8 | 59 | 84.6 | 89.5 | 94.6 | 36.5 |
Price
Value & Pricing
From $650
Amazon 1 offer From $650
B&H Photo 1 offer From $730
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
