LG PK640S Series PK640S 86"
Sony BRAVIA 9 K85XR90 85"
What Buyers Say
LG PK640S Series PK640S 86"
The LG 50UM340E commercial TV has received very poor reviews, with users citing extremely limited capabilities such as no scheduling for power on/off and poor third-party app compatibility. One verified buyer had to connect a Raspberry Pi just to get content displayed, and LG's management software was inaccessible. Additionally, one review mentions the TV never arrived, and another is a non-review. The Q&A confirms it cannot be mounted vertically, but does support USB playback.
Pros
- USB playback support
- Built-in digital signage features
Cons
- No power on/off scheduling
- Poor third-party app compatibility
- Inaccessible management software
- Cannot be mounted vertically
- Useless manual
Sony BRAVIA 9 K85XR90 85"
The Sony BRAVIA 9 is praised for its exceptional brightness, vibrant colors, and deep contrast, making it a standout Mini-LED TV for movies, shows, and gaming. A few users noted minor blooming, limited viewing angles, and audio sync issues, while many say it rivals or surpasses OLED in bright rooms. The built-in speaker quality and sleek design also impressed buyers.
Pros
- exceptional brightness
- vibrant colors and deep contrast
- impressive HDR performance
- immersive built-in speakers
- sleek minimalist design
Cons
- minor blooming in high-contrast scenes
- limited viewing angles compared to OLED
- audio sync issues with voices
- no warranty information provided
- premium price tag
Scores
Specifications
| LG PK640S Series PK640S 86" | Sony BRAVIA 9 K85XR90 85" | |
|---|---|---|
| Display | ||
| Size | 86" | 85" |
| Resolution | 4K | 4K |
| Panel Type | LED | Mini-LED★ |
| Backlight | Direct LED | Mini-LED★ |
| Aspect Ratio | 16:9 | 16:9 |
| Curved | — | ✗ |
| Screen Finish | — | matte |
| Picture Quality | ||
| Brightness | 300 nits★ | — |
| Peak Brightness | 300 nits★ | — |
| Contrast Ratio | 5000:1 | — |
| Color Gamut | — | Not Specified by Manufacturer |
| Motion Tech | — | XR Motion Clarity |
| Processor | — | XR Processor |
| HDR | ||
| HDR Formats | HDR10, HLG | HDR10, HLG, Dolby Vision |
| Dolby Vision | ✗ | ✓★ |
| HDR10+ | ✗ | ✗ |
| HLG | ✓ | ✓ |
| Gaming | ||
| Refresh Rate | 60 Hz | 120 Hz★ |
| Response Time | 8 ms★ | — |
| VRR | — | VRR |
| ALLM | — | ✓★ |
| Game Mode | — | ✓★ |
| Smart TV | ||
| Platform | webOS | Google TV |
| Voice Assistant | — | Google Assistant |
| Screen Mirroring | — | AirPlay 2, Chromecast built-in |
| Works With | — | Google Home |
| Audio | ||
| Speaker Config | 2-Channel | 2.2.2 |
| Wattage | 20W | 70W★ |
| Dolby Atmos | ✗ | ✓★ |
| Surround Sound | — | DTS:X |
| eARC | — | ✓★ |
| Connectivity | ||
| HDMI Ports | 2 | 4★ |
| HDMI Version | 2.0 | 2.1★ |
| USB Ports | 1 | 2★ |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6★ |
| Bluetooth | Yes | 5.3★ |
| Ethernet | ✓ | ✓ |
| Optical Audio | ✓ | ✓ |
| VESA Mount | 400x400 | 400x400 |
| Power & Size | ||
| Power | 195W★ | 345W |
| Energy Star | — | ✗ |
| Annual Energy | — | 759 kWh★ |
| Weight | 33.40 kg★ | 52.40 kg |
Pros & Cons
LG PK640S Series PK640S 86"
- Strong display (81st percentile)81st %ile
- Below average user sentiment (2nd percentile)2nd %ile
- Below average social proof (20th percentile)20th %ile
- Below average smart (29th percentile)
- Below average audio (33rd percentile)
Sony BRAVIA 9 K85XR90 85"
- Strong audio (97th percentile)97th %ile
- Strong display (95th percentile)95th %ile
- Strong connectivity (93rd percentile)93rd %ile
- Strong smart (92nd percentile)92nd %ile
Pricing
Sony BRAVIA 9 K85XR90 85" offers 1.5x better value for money
Verdict
Scores 96 overall, wins 9 of 9 usage categories and 15 of 43 specs.
