TV Comparisons
Sony KD-X77L series vs Sony KD-X80K series: Which One Should You Buy?
The Sony X77L and X80K are closely matched 4K Google TVs with direct LED backlighting, native 60 Hz panels, ALLM and Sony's PS5-focused picture features. The X80K is the stronger overall package because it adds Dolby Vision, a fourth HDMI input, ATSC 3.0 tuning, CalMAN auto-calibration support, enhanced color and contrast processing, Dolby Atmos, DTS and room audio calibration. The X77L remains a practical alternative when it costs less or the X80K is unavailable, but it gives up several movie, connectivity and audio features.
Sony X77L vs X80K: Which Budget Sony TV Should You Buy?
The Sony X77L and X80K are closely matched 4K Google TVs with direct LED backlighting, native 60 Hz panels, ALLM and Sony's PS5-focused picture features. The X80K is the stronger overall package because it adds Dolby Vision, a fourth HDMI input, ATSC 3.0 tuning, CalMAN auto-calibration support, enhanced color and contrast processing, Dolby Atmos, DTS and room audio calibration. The X77L remains a practical alternative when it costs less or the X80K is unavailable, but it gives up several movie, connectivity and audio features.
| Feature | KD-X77L series | KD-X80K series | What it means |
|---|---|---|---|
| Model year | 2023 | 2022 | Model year alone does not establish better performance or value. |
| Resolution and native refresh rate | 3840 x 2160 at 60 Hz | 3840 x 2160 at 60 Hz | Both use native 60 Hz 4K panels and are limited to 4K60 at native resolution. |
| Backlight and local dimming | Direct LED with Frame Dimming; no local-dimming zones | Direct LED with Frame Dimming; no local-dimming zones | Both use global Frame Dimming rather than independently controlled local-dimming zones. |
| HDR formats | HDR10 and HLG | HDR10, HLG and Dolby Vision | Dolby Vision adds compatibility with more HDR movies and streaming programs. |
| Picture processing | 4K Processor X1 and 4K X-Reality PRO | 4K HDR Processor X1, TRILUMINOS PRO, 4K X-Reality PRO and Object-based HDR remaster | The X80K includes additional color and HDR contrast processing. |
| HDMI inputs | 3 | 4 | The fourth HDMI input provides more room for consoles, players and other sources. |
| Gaming support | 4K60, ALLM on HDMI 3, no VRR | 4K60, ALLM on HDMI 3 and 4, no VRR | Core performance is tied, but the X80K offers automatic low-latency switching on two HDMI inputs. |
| PlayStation 5 picture features | Auto HDR Tone Mapping and Auto Genre Picture Mode | Auto HDR Tone Mapping and Auto Genre Picture Mode | Both provide the same listed PS5-focused automatic picture features. |
| Built-in audio output | 2.0 channels, 20 watts | 2.0 channels, 20 watts | Both use two 10-watt X-Balanced speakers. |
| Audio formats and room calibration | Dolby Audio; no DTS or room calibration listed | Dolby Audio, Dolby Atmos, DTS Digital Surround and Acoustic Auto Calibration | The X80K supports more audio formats and can compensate for the listening environment. |
| Broadcast tuner | ATSC | ATSC and ATSC 3.0/NEXTGEN TV | ATSC 3.0 supports compatible NEXTGEN TV broadcasts where available. |
| CalMAN auto calibration | Not supported | Supported | The X80K offers a more streamlined workflow for compatible professional calibration. |
| Smart platform and casting | Google TV, Chromecast built-in and AirPlay | Google TV, Chromecast built-in and AirPlay | Both provide the same core Google TV and wireless playback experience. |
| Optional camera compatibility | No camera function listed | Compatible with BRAVIA CAM CMU-BC1 | The X80K supports Sony's optional camera applications. |
X77L 4K HDR LED Google TV
The X77L combines a direct LED 4K display, Google TV, Sony X1 processing, ALLM and PS5 picture features, but it lacks Dolby Vision, VRR and local dimming.
Key technology
4K Processor X1Sony's picture processor adjusts color, contrast and image detail for the display.
4K X-Reality PROProcesses lower-resolution video and upscales it toward the television's 4K resolution.
Motionflow XR 240Sony motion processing intended to make movement appear smoother; the underlying physical panel remains 60 Hz.
Auto HDR Tone Mapping for PlayStation 5Allows a directly connected PS5 to optimize its HDR setup for the television during console configuration.
Auto Genre Picture ModeAllows a directly connected PS5 to trigger Game mode for gameplay and return to a conventional picture mode for video content.
X-Balanced SpeakerUses a speaker shape designed to fit the slim cabinet while producing clear television sound.
Buyer advantages
- X80K supports Dolby Vision with Bright and Dark picture modes
- X80K provides four HDMI inputs, ATSC 3.0 and CalMAN auto calibration
- Both models include Google TV, AirPlay and Chromecast built-in
- Both support ALLM and Sony's automatic PS5 picture features
- Six screen sizes are available in each series, ranging from 43 to 85 inches
Things to consider
- Both models use native 60 Hz panels and cannot accept 4K120
- Neither television supports VRR
- Neither series has independently controlled local-dimming zones
- X77L omits Dolby Vision and provides only three HDMI inputs
- LCD panel subtypes are not identified by Sony and may differ by size
Sizes, mounting and buying details
| Size / model | Peak HDR | VESA | Feet width | Viewing distance | Buy |
|---|---|---|---|---|---|
| 43"KD-43X77L | — | 200 x 200 | 28.25 in | 4.9–6.7 ft | — |
| 50"KD-50X77L | — | 200 x 200 | 28.25 in | 5.7–7.8 ft | — |
| 55"KD-55X77L | — | 300 x 300 | 40.5 in | 6.3–8.6 ft | — |
| 65"KD-65X77L | — | 300 x 300 | 46.38 in | 7.4–10.1 ft | — |
| 75"KD-75X77L | — | 300 x 300 | 52.88 in | 8.6–11.7 ft | — |
| 85"KD-85X77L | — | 400 x 400 | 60.75 in | 9.7–13.2 ft | — |
Complete specifications
Audio
Speaker System2.0-channel, two full-range bass-reflex X-Balanced speakers
Speaker Count2
Woofer Count0
Included SubwooferNo
Included Rear SpeakersNo
Audio Output Watts20 W
Dolby AtmosNo
Dolby Audio FormatsDolby Audio
DTS SupportNo
Voice AssistantsGoogle Assistant
Connectivity
HDMI Ports3
HDMI Inputs3
HDMI Outputs0
HDMI eARCYes
Optical Inputs0
AirPlayYes
ChromecastYes
Design & Installation
Wall Mount IncludedNo
Gaming
Native Refresh Rate Hz60 Hz
Maximum Refresh Rate Hz60 Hz
VRRNo
ALLMYes
Picture
Display TechnologyDirect LED-backlit LCD
Resolution3840 x 2160
Local DimmingNo local dimming; Sony specifies Frame Dimming
Local Dimming Zones By Size43": 0, 50": 0, 55": 0, 65": 0, 75": 0, 85": 0
HDR FormatsHDR10, HLG
Size Details
Dimensions Without Stand Inches38.27 x 22.32 x 2.76 in
Weight Without Stand lb20.5 lb
Dimensions Without Stand Inches44.33 x 25.71 x 2.76 in
Weight Without Stand lb26.7 lb
Dimensions Without Stand Inches49.00 x 28.50 x 2.88 in
Weight Without Stand lb33.8 lb
Dimensions Without Stand Inches57.63 x 33.25 x 2.88 in
Weight Without Stand lb45 lb
Dimensions Without Stand Inches66.50 x 38.25 x 2.88 in
Weight Without Stand lb67 lb
Dimensions Without Stand Inches74.88 x 43.00 x 2.88 in
Weight Without Stand lb100.9 lb
Smart Features
Operating SystemGoogle TV experience based on Android TV
Processor4K Processor X1
Specifications
Screen Sizes43, 50, 55, 65, 75, 85
VESA By Size43": 200 x 200 mm, 50": 200 x 200 mm, 55": 300 x 300 mm, 65": 300 x 300 mm, 75": 300 x 300 mm, 85": 400 x 400 mm
Stand Width By Size43": 28.25, 50": 28.25, 55": 40.5, 65": 46.38, 75": 52.88, 85": 60.75
Stand Depth By Size43": 10.5, 50": 10.63, 55": 13.25, 65": 13.25, 75": 16.38, 85": 17.88
Picture Modes SDRVivid, Standard, Theater, Game, Graphics, Photo, Custom
X80K 4K HDR LED Google TV
The X80K adds Dolby Vision, TRILUMINOS PRO, four HDMI inputs, ATSC 3.0, CalMAN auto calibration and broader audio support.
Key technology
4K HDR Processor X1Sony's picture processor adjusts color, contrast and image detail, including processing for HDR material.
TRILUMINOS PROSony color processing that analyzes color information and expands the range of reproducible shades.
4K X-Reality PROProcesses lower-resolution video and upscales it toward the television's 4K resolution.
Object-based HDR remasterAnalyzes elements within an image and adjusts contrast to create more individually differentiated subjects and backgrounds.
Motionflow XR 240Sony motion processing intended to make movement appear smoother; the underlying physical panel remains 60 Hz.
Acoustic Auto CalibrationUses room compensation to adjust television sound for the listening environment.
Auto HDR Tone Mapping for PlayStation 5Allows a directly connected PS5 to optimize its HDR setup for the television during console configuration.
Auto Genre Picture ModeAllows a directly connected PS5 to trigger Game mode for gameplay and return to a conventional picture mode for video content.
X-Balanced SpeakerUses a speaker shape designed to fit the slim cabinet while producing clear television sound.
Buyer advantages
- Dolby Vision Bright and Dolby Vision Dark modes provide format-specific playback for compatible movies and streaming programs.
- Four HDMI inputs make it easier to connect several consoles, players and home-theater devices without an external switch.
- TRILUMINOS PRO and Object-based HDR remaster provide additional color and contrast processing beyond the X77L's feature set.
- ATSC 3.0 tuning supports compatible NEXTGEN TV broadcasts in available markets.
- CalMAN auto calibration provides a more streamlined path for professional or enthusiast picture adjustment.
- Dolby Atmos, DTS Digital Surround and Acoustic Auto Calibration improve audio-format compatibility and room adaptation.
- Optional BRAVIA CAM support adds compatible camera applications.
Things to consider
- The native 60 Hz panel cannot accept 4K120, limiting performance with current high-frame-rate consoles and PCs.
- VRR is not supported, so the television cannot synchronize its refresh rate with fluctuating game frame rates.
- Frame Dimming does not provide independently controlled local-dimming zones for precise HDR contrast.
- HDR10+ is not supported.
- Sony does not identify the LCD panel subtype for each size, so black levels and viewing angles should not be generalized from one unit.
- Peak SDR and HDR brightness figures are not specified by Sony.
Sizes, mounting and buying details
| Size / model | Peak HDR | VESA | Feet width | Viewing distance | Buy |
|---|---|---|---|---|---|
| 43"KD-43X80K | — | 200 x 200 | 26.18 in | 4.9–6.7 ft | — |
| 50"KD-50X80K | — | 200 x 200 | 26.18 in | 5.7–7.8 ft | — |
| 55"KD-55X80K | — | 300 x 300 | 41.77 in | 6.3–8.6 ft | — |
| 65"KD-65X80K | — | 300 x 300 | 47.56 in | 7.4–10.1 ft | — |
| 75"KD-75X80K | — | 300 x 300 | 52.38 in | 8.6–11.7 ft | — |
| 85"KD-85X80K | — | 400 x 400 | 60.38 in | 9.7–13.2 ft | — |
Complete specifications
Audio
Speaker System2.0-channel, two full-range bass-reflex X-Balanced speakers
Speaker Count2
Woofer Count0
Included SubwooferNo
Included Rear SpeakersNo
Audio Output Watts20 W
Dolby AtmosYes
Dolby Audio FormatsDolby Audio, Dolby Atmos
DTS SupportYes
DTS Audio FormatsDTS Digital Surround
Room CorrectionAcoustic Auto Calibration with Room Compensation
Voice AssistantsGoogle Assistant, Amazon Alexa through a compatible external Alexa device
Optional AccessoriesBRAVIA CAM CMU-BC1, Sony SU-WL855 wall-mount bracket for selected compatible sizes
Connectivity
HDMI Ports4
HDMI Inputs4
HDMI Outputs0
HDMI eARCYes
Optical Inputs0
AirPlayYes
ChromecastYes
Design & Installation
Wall Mount IncludedNo
Gaming
Native Refresh Rate Hz60 Hz
Maximum Refresh Rate Hz60 Hz
VRRNo
ALLMYes
Picture
Display TechnologyDirect LED-backlit LCD
Resolution3840 x 2160
Local DimmingNo local dimming; Sony specifies Frame Dimming
Local Dimming Zones By Size43": 0, 50": 0, 55": 0, 65": 0, 75": 0, 85": 0
HDR FormatsHDR10, HLG, Dolby Vision
Size Details
Dimensions Without Stand Inches37.95 x 22.17 x 2.72 in
Weight Without Stand lb22.3 lb
Dimensions Without Stand Inches44.06 x 25.55 x 2.76 in
Weight Without Stand lb27.4 lb
Dimensions Without Stand Inches48.54 x 28.07 x 2.83 in
Weight Without Stand lb35.1 lb
Dimensions Without Stand Inches57.17 x 32.91 x 2.83 in
Weight Without Stand lb47.8 lb
Dimensions Without Stand Inches66.00 x 37.88 x 2.88 in
Weight Without Stand lb71 lb
Dimensions Without Stand Inches74.88 x 43.00 x 2.88 in
Weight Without Stand lb98.5 lb
Smart Features
Operating SystemGoogle TV experience based on Android TV
Processor4K HDR Processor X1
Specifications
Screen Sizes43, 50, 55, 65, 75, 85
VESA By Size43": 200 x 200 mm, 50": 200 x 200 mm, 55": 300 x 300 mm, 65": 300 x 300 mm, 75": 300 x 300 mm, 85": 400 x 400 mm
Stand Width By Size43": 26.18, 50": 26.18, 55": 41.77, 65": 47.56, 75": 52.38, 85": 60.38
Stand Depth By Size43": 11.26, 50": 11.26, 55": 13.31, 65": 13.31, 75": 16.25, 85": 18
Picture Modes SDRVivid, Standard, Cinema, Game, Graphics, Photo, Custom
Picture Modes Dolby VisionDolby Vision Bright, Dolby Vision Dark
Which one should you buy?
The Sony X80K is the better all-around purchase for movie fans, home-theater users and households with several HDMI devices. Dolby Vision, four HDMI inputs, ATSC 3.0, CalMAN auto calibration, TRILUMINOS PRO, Dolby Atmos, DTS and room audio calibration give it meaningful advantages despite its earlier model year. The Sony X77L is the simpler option for shoppers who want Google TV, Sony processing and casual 4K60 gaming at a lower price. It delivers the same native resolution and refresh-rate class, but its lack of Dolby Vision, VRR, local dimming and a fourth HDMI input makes it less flexible. Neither model is the right choice for 4K120 gaming or high-impact HDR.
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