LG OLED - B5 series OLED77B5PUA 77.4"
The 77" OLED display with Alpha 8 AI Processor Gen 2 delivers infinite contrast and 120Hz gaming with G-SYNC and FreeSync support. Its smart home integration scores 96.1/100, backed by webOS, Alexa, and Wi-Fi 6E connectivity. Best for home theater enthusiasts seeking a large OLED with robust gaming features and voice-controlled smart home hub capabilities.
Snapshot
Pros & Cons
Pros
- Strong user sentiment (100th percentile) 100th
- Strong connectivity (97th percentile) 97th
- Strong social proof (95th percentile) 95th
- Strong smart (90th percentile) 90th
Cons
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
- Q2 202680/100
Buyers praise stunning OLED picture quality, colors, and contrast. However, reliability concerns emerge with a hardware failure after 6 months and a canceled promo causing frustration.
- Incredible picture quality with deep blacks, vibrant colors, and AI processing praised.
- Some find the OS sluggish or remote cheap, but picture outweighs these issues for most.
- One unit failed to power up after 6 months; customer service process seen as slow.
- Promised free additional TV was canceled, leading to a 1-star review from a loyal customer.
- Q1 202672/100
Buyers praise impressive picture quality, vibrant colors, and good value for the price. However, reliability complaints appear: units shutting off, connectivity glitches, pixel issues, and poor Best Buy customer service frustrate some owners.
- Picture quality is excellent: deep blacks, vibrant colors, sharp clarity for movies, sports, and gaming.
- Reliability issues reported: random shut-offs, memory errors, network disconnects, and pixel burn requiring refresh.
- Best Buy customer service and Geek Squad support criticized for poor delivery, refund delays, and unhelpful responses.
- Some find remote and menu navigation confusing or slow; interface lags and pointer control is frustrating.
Based on 203 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Display
| Size | 77.4" |
| Resolution | 4K |
| Panel Type | OLED |
| Backlight | OLED |
| Curved | No |
Picture Quality
| Contrast Ratio | Infinite |
| Motion Tech | OLED Motion |
| Processor | Alpha 8 AI Processor Gen 2 |
HDR
| HDR Formats | Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG) |
| Dolby Vision | Yes |
| HDR10+ | No |
| HLG | Yes |
Gaming
| Refresh Rate | 120 Hz |
| VRR | G-SYNC Compatible (NVIDIA Adaptive Sync), FreeSync (AMD Adaptive |
Smart TV
| Platform | webOS |
| Voice Assistant | Amazon Alexa |
| Screen Mirroring | Apple AirPlay 2, Google Cast |
| Works With | Amazon Alexa, Google Home, Apple Home |
Audio
| Speaker Config | 2 |
| Dolby Atmos | Yes |
| Surround Sound | Dolby Atmos |
| eARC | Yes |
Connectivity
| HDMI Ports | 4 |
| HDMI Version | 2.1 |
| USB Ports | 2 |
| Wi-Fi | Wi-Fi 6E |
| Bluetooth | 5.3 |
| Ethernet | Yes |
| Optical Audio | Yes |
| VESA Mount | 300mm x 200mm |
Power & Size
| Energy Star | Yes |
| Annual Energy | 344 |
| Weight | 22.9 kg / 50.5 lbs |
vs Competition
| Spec | LG OLED - B5 series OLED77B5PUA 77.4" | Sony BRAVIA 9 K85XR90 | Samsung Neo QLED QN75QN990FFXZA | Hisense U8 Series 100U8QG | TCL QM6K Series 55QM6K | Roku Plus Series 65R6C7 |
|---|---|---|---|---|---|---|
| Screen Size | 77.4000015258789 | 85 | 75 | 99.5 | 55 | 65 |
| Resolution | 4K | 3840x2160 | 7680x4320 | 3840x2160 | 3840x2160 | 3840x2160 |
| Panel Type | OLED | Mini-LED | QD-Mini-LED | Mini-LED | QLED | Mini-LED |
| Refresh Rate | 120 | 120 | 120 | 165 | 144 | 60 |
| Hdr | Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG) | HDR 10, Hybrid Log-Gamma (HLG), Dolby Vision | HDR10, HDR10+, HLG | 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 | true | true | false | true | true | true |
| Dolby Atmos | true | true | true | true | true | true |
| Hdmi Version | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 |
| Compare | Compare | Compare | Compare | Compare |
| Product | HDR | Audio | Smart | Gaming | Display | User Sentiment | Connectivity | Social Proof | Picture Quality |
|---|---|---|---|---|---|---|---|---|---|
| LG OLED - B5 series OLED77B5PUA 77.4" | 76.8 | 78.3 | 89.9 | 76.5 | 58.4 | 99.9 | 96.5 | 94.5 | 36.7 |
| Sony BRAVIA 9 K85XR90 Compare | 76.8 | 96.9 | 91.6 | 79.3 | 94.5 | 65.3 | 92.7 | 88.1 | 79.8 |
| Samsung Neo QLED QN75QN990FFXZA Compare | 85.1 | 99.5 | 84.7 | 88.3 | 99.6 | 65.3 | 99.9 | 99.9 | 85.3 |
| Hisense U8 Series 100U8QG Compare | 91.5 | 98.2 | 95.7 | 95.1 | 94.5 | 97.9 | 86 | 77 | 98.8 |
| TCL QM6K Series 55QM6K Compare | 98.8 | 88.1 | 97.5 | 93.4 | 77.8 | 79.1 | 88.9 | 88.1 | 98.7 |
| Roku Plus Series 65R6C7 Compare | 76.8 | 82.3 | 99.8 | 58.9 | 85 | 79.1 | 88.9 | 94.5 | 36.7 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
