促销 50%

LG OLED - B5 series OLED77B5PUA 77.4"

★★★★★ 4.8 (1,067)

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.

Screen 77.4000015258789"
Resolution 4K
Panel OLED
Refresh 120 Hz
HDR Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG)
smart platform webOS
dolby vision 是
dolby atmos 是
LG OLED - B5 series OLED77B5PUA 77.4" tv
85 综合评分

概览

The 30-Second Version

The LG B5 is a stunning 77-inch OLED with perfect blacks, vibrant color, and a 120Hz panel that gamers will love. User sentiment is through the roof, and the Alpha 8 Gen 2 processor makes everything look better. If you can find it near the low end of the USD 1,085 to USD 3,000 range, it's a no-brainer.

Pros & Cons

优点

  • Perfect blacks and vibrant colors that make everything else look washed out 100th
  • 120Hz panel with G-SYNC and FreeSync on all four HDMI 2.1 ports 98th
  • Alpha 8 Gen 2 processor does genuinely impressive upscaling 97th
  • webOS is clean, fast, and backed by a five-year update promise 91st

缺点

  • Built-in speakers are fine, not great
  • Picture quality percentile lands at 37th, which is odd given the rave reviews
  • No listed price means you'll have to hunt for deals
  • At 50 pounds, wall mounting is a two-person job

用户评价

The Word on the Street

4.8/5 (1067 reviews)
👍 Owners consistently rave about the deep blacks and vibrant colors, saying the picture quality is the best they've seen
👍 Several buyers mention the AI upscaling makes older content look surprisingly good
🤔 A common note is that the built-in sound is decent but a soundbar really unlocks the experience

用户口碑如何随时间变化

独家

依据客户实际撰写评价的时间--让你看到最初的好评是否持续。

用户口碑随时间保持稳定
97/100我们的 AI 口碑分析置信度中 · 13 个来源 · 2026年6月
1★2★3★4★5★Q1 '26: 4.7★ · 113 条评价Q2 '26: 4.7★ · 82 条评价Q3 '26: 4.8★ · 63 条评价1138263Q1 '26Q2 '26Q3 '26
平均评分满意(4-5★)不满意(1-2★)柱形高度 = 评价数量
  1. Q2 202680/1004.7★70 条评价

    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.
  2. Q1 202672/1004.7★130 条评价

    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.

基于 258 条带日期的客户评价,按日历季度分组。分期分析为英文。

实测数据

Performance

The picture is the star here. Over 8.3 million self-lit pixels mean contrast is effectively infinite, and the B5's brightness is a genuine step up from older OLEDs. The Alpha 8 Gen 2 processor handles upscaling like a champ, so even cable TV and old YouTube clips look respectable. Motion handling is smooth, which matters if you watch sports or play fast games. Gaming gets 120Hz, G-SYNC, FreeSync, and HDMI 2.1 across all four ports, so no dongle roulette. The built-in 2.0 channel audio is fine for casual viewing, but it's not going to rattle your walls. Plan on a soundbar if you want the full experience.

Performance Percentiles

HDR 76.8
Audio 77.3
Smart 90.7
游戏 75.8
Display 59.2
User Sentiment 99.9
Connectivity 96.7
用户口碑 98
Picture Quality 36.2

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

The Sony BRAVIA XR XR77A95L is the natural rival, and it trades blows on picture processing but typically costs more. Samsung's Neo QLED QN75QN990FFXZA gets brighter in a bright room, but it can't match OLED's per-pixel contrast. The TCL QM7K and Hisense U8 are the value plays, offering big screens for less cash, but they're LED panels with blooming and off-angle compromises. If you want the OLED look without the Sony tax, the B5 is the sweet spot.

Spec LG OLED - B5 series OLED77B5PUA 77.4" Sony BRAVIA XR XR77A95L Samsung Neo QLED QN75QN990FFXZA TCL QM6K Series 55QM6K Hisense U8 Series 100U8QG Roku Pro Series 55R8C5
Screen Size 77.4000015258789 77 75 55 99.5 55
Resolution 4K 3840x2160 7680x4320 3840x2160 3840x2160 3840x2160
Panel Type OLED QD-OLED QD-Mini-LED QLED Mini-LED QLED
Refresh Rate 120 120 120 144 165 120
Hdr Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG) HDR 10, Hybrid Log-Gamma (HLG), Dolby Vision HDR10, HDR10+, HLG Dolby Vision, HDR10+, HDR10, HLG Dolby Vision, HDR 10+, HDR 10, Hybrid Log-Gamma (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
产品 HDRAudioSmart游戏DisplayUser SentimentConnectivity用户口碑Picture Quality
LG OLED - B5 series OLED77B5PUA 77.4" 76.877.390.775.859.299.996.79836.2
Sony BRAVIA XR XR77A95L Compare 91.595.390.786.698.7084.187.596.1
Samsung Neo QLED QN75QN990FFXZA Compare 85.299.586.388.699.666.799.999.684.1
TCL QM6K Series 55QM6K Compare 98.788.497.793.177.980.389.387.598.8
Hisense U8 Series 100U8QG Compare 91.598.396.194.994.897.986.475.998.9
Roku Pro Series 55R8C5 Compare 76.885.886.388.677.991.792.987.536.2

价格

Value & Pricing

Pricing is all over the map right now. We're seeing USD 1,085 to USD 3,000 across seven US listings, which is a wild spread. If you can snag one near the low end, this is an absolute steal for a 77-inch OLED. At the high end, you're paying early-adopter tax on a 2025 model. Best Buy has open-box options that could land you in the sweet spot. Shop around before you commit.

最低 US$1,085 1 家零售商共 7 个报价

Price History

New Refurbished
US$0 US$1,000 US$2,000 US$3,000 US$4,000 5月2日5月29日6月26日7月26日8月21日9月18日10月21日 US$1,500

了解更多

Overview

The LG B5 is the OLED that makes you wonder why you waited so long. It's a 77-inch slab of self-lit pixels that nails the fundamentals: perfect blacks, punchy color, and motion so smooth it almost feels unfair. The Alpha 8 AI Processor Gen 2 does the heavy lifting behind the scenes, upscaling whatever junk you throw at it into something watchable.

This is the 2025 model, and LG clearly spent the year polishing rather than reinventing. You get Dolby Vision, a 120Hz panel, G-SYNC and FreeSync support, and webOS with a promise of five years of updates. It's not the cheapest 77-inch TV out there, but owners are basically glowing about it, and our sentiment data backs that up.

Common Questions

Q: Does this TV support 4K at 120Hz for gaming?

Yes, all four HDMI ports are HDMI 2.1 and support 4K at 120Hz, plus G-SYNC and FreeSync for tear-free gaming.

Q: Is the built-in audio good enough, or do I need a soundbar?

The 2.0 channel speakers with Dolby Atmos are fine for casual viewing, but a soundbar is recommended for movies and gaming.

Q: How does the B5 compare to the more expensive LG G series?

The B5 uses the Alpha 8 Gen 2 processor rather than the higher-end Alpha 11, so it's slightly less powerful for upscaling, but it still delivers excellent picture quality for most people.

Who Should Skip This

Skip this if you're putting it in a bright, sun-drenched room. OLEDs have come a long way, but a QLED like the Samsung QN75QN990FFXZA will fight glare better. Also skip it if you're on a strict budget, the TCL QM7K or Hisense U8 will get you a big screen for less, just without the OLED magic.

Verdict

Buy this if you want a big, beautiful OLED that handles movies, sports, and gaming without breaking a sweat. It's especially good for dark-room viewing, where those perfect blacks do their best work. The AI upscaling is a real bonus if you watch a lot of non-4K content. Pair it with a soundbar and you've got a setup that'll keep you happy for years.

Usage Scores

总体 (85.4)Budget (81.6)游戏 (74.3)Movies (64.7)Sports (69.3)Outdoor (47.1)Portable (50.3)Corporate (77)Streaming (80.4)Smart Home (86.3)

其他配置9

类似产品