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The Verdict

The Sony Bravia 8 (K-77XR8B) is a masterclass in computational accuracy, leveraging the XR Processor to deliver the industry's most natural upscaling and motion handling. While competitors often prioritize raw, eye-searing brightness, this 77-inch OLED focuses on pixel-level precision and Pure Black contrast, making it the definitive choice for Dolby Vision cinema and IMAX Enhanced content. For PlayStation 5 owners, the exclusive Auto HDR Tone Mapping provides a "set-and-forget" advantage, ensuring maximum detail in the most demanding high-contrast gaming scenes.

The Trade-off: As a WOLED panel, its peak HDR brightness cannot compete with Sony’s flagship Mini-LED (Bravia 9) or high-end QD-OLEDs in rooms with significant ambient glare. Furthermore, the persistence of only two HDMI 2.1 ports remains a bottleneck for power users managing multiple current-gen consoles and high-end soundbars simultaneously.

The Verdict: Despite the lack of a third HDMI 2.1 port and moderate brightness, the K-77XR8B is a mandatory purchase for the purist. You are paying for Sony’s processing "secret sauce"—the ability to make standard HD streaming look like native 4K and to maintain blur-free action without artificial artifacts. If your goal is to see a film exactly as the studio calibrated it, the unmatched color accuracy of the Bravia 8 makes the premium price a justifiable investment.

Compare with similar products

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Rating
ModelK77XR8B——K65XR8BK55XR8BK85XR50K65XR80M2
Display TechOLED—OLEDOLEDOLEDLEDQD-OLED
BacklightDirect Lit——Direct Lit—Mini LED—
Use CaseGaming, Home Theater—Home TheaterGaming, Home TheaterGaming, Home TheaterGaming, Home TheaterGaming, Home Theater
Gaming FeaturesALLM (Auto Low Latency Mode)——GameBarALLM (Auto Low Latency Mode)4K @ 120Hz, ALLM (Auto Low Latency Mode)4K @ 120Hz
ModelsSony Bravia XR—Sony Bravia XRSony Bravia XRSony Bravia XRSony BraviaBravia 8
Supported Audio FormatsDolby Atmos, DTS:X—Dolby AtmosDolby Atmos, DTS:XDolby Atmos, DTS:XDolby Atmos, DTS:XDolby Atmos, DTS:X
Resolution4K—4K4K4K4K4K
Native Refresh Rate120Hz——120Hz120Hz120Hz120Hz
BrandSony—SonySonySonySonySony

About this product

  • PURE BLACK OLED CONTRAST. Over 8 million self-lit pixels are precisely controlled to produce pure black with high brightness.
  • POWERFUL TV PROCESSING. XR Processor intelligently enhances every scene in real-time boosting color, contrast, and clarity.
  • EVERYTHING YOU STREAM. ALL IN ONE SCREEN: Get access to all your favorite streaming apps in one place with Google TV. With Google Assistant, simply use your voice to search and ask questions.
  • EFFORTLESSLY STREAM TO YOUR TV. Easily stream to your TV with support for Apple AirPlay 2 and Google Cast.
  • YOUR FAVORITE STREAMING APPS IN ONE PLACE: Get access to all your favorite streaming apps, including Netflix, Prime Video, Disney+, YouTube, the Apple TV app, Crunchyroll, and many more with Google TV.

Specifications

Brand
Sony
Model
K77XR8B
Part Number
K77XR8BB
Display
OLED
Screen
77 Inch
Resolution
4K
Backlight
Direct Lit
Native Refresh
120Hz
Use Case
Gaming, Home Theater
Brand
Sony
HDR Support
Dolby Vision, HDR10
OS
Google TV
Sound Features
Adaptive Sound+
Gaming Features
ALLM (Auto Low Latency Mode)
Models
Sony Bravia XR
Year
2025
Audio Formats
Dolby Atmos, DTS:X
AI Features
AI Picture Enhancement
Upscaling
4K AI Upscaling
Voice Assistants
Google Assistant
HDMI Ports
4.0 HDMI Ports
Width
67.5 inches
Height
39.88 inches
Depth
16 inches
Weight
98 pounds
Colour
Black
Warranty
1 year
Released
2025-08-17T00:00:01Z
Manufacturer
Sony
UPC
027242934108
GTIN
00027242934108

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