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Sony X90J vs Sony X90K

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

SonyX90JSonyX90K
Overview
ReleasedApril 2021April 2022
Display
PanelLED LCDLED LCD
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate120 Hz120 Hz
HDR formatsHDR10, HLG, Dolby VisionHDR10, HLG, Dolby Vision
Picture processingCognitive Processor XR, XR Contrast Booster, XR HDR Remaster, XR Triluminos Pro, XR Smoothing, Dual Database Processing, XR Super Resolution and XR 4K Upscaling. Full-array LED backlight with local dimming; maker does not publish a zone count.Cognitive Processor XR, XR Contrast Booster, XR HDR Remaster, XR Triluminos Pro, XR Smoothing, Dual Database Processing, XR Super Resolution and XR 4K Upscaling. Full-array LED backlight with local dimming; maker does not publish a dimming-zone count.
Picture modesCustom, Cinema, IMAX Enhanced, Game, Graphics, Photo, Dolby Vision Bright/Dark and Netflix Calibrated.Custom, Cinema, IMAX Enhanced, Game, Graphics, Photo, Dolby Vision Bright/Dark, Netflix Calibrated and BRAVIA CORE Calibrated.
Motion handlingXR Motion Clarity; UK accepts 4K 120 Hz HDMI input and maker Japan explicitly lists a native 120 Hz panel.XR Motion Clarity. European maker table calls the panel 100 Hz while explicitly accepting native-resolution 4K 120 Hz HDMI input; 120 Hz is retained as the highest supported refresh.
Sizes
Sizes50, 55, 65, 75″55, 65, 75, 85″
Largest size75″85″
Gaming
HDMI ports4 (2 HDMI 2.1 at 4K 120 Hz+)4 (2 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateHDMI VRRHDMI VRR
Auto low latency modeYesYes
HDMI detailFour side HDMI inputs. HDMI 3/4 support 4K 120 Hz, VRR and ALLM; eARC shares HDMI 3. HDCP 2.3. Current maker specification confirms VRR after firmware; original What Hi-Fi? review has no VRR.Four side HDMI inputs; HDMI 3/4 support 4K 120 Hz, VRR and ALLM, with eARC sharing one. HDCP 2.3.
Game featuresPlayStation 5 Auto HDR Tone Mapping and Auto Genre Picture Mode after software updates. Both reviews explain that Dolby Vision and 4K 120 Hz require different HDMI modes; no low-latency Dolby Vision Game mode is claimed.PlayStation 5 Auto HDR Tone Mapping and Auto Genre Picture Mode.
Smart TV and sound
Smart TV platformGoogle TVGoogle TV
ProcessorCognitive Processor XRCognitive Processor XR
Dolby AtmosYesYes
eARCYesYes
Wi-FiWi-Fi 5 (802.11ac)Wi-Fi 5 (802.11ac)
Bluetooth4.24.2
Speaker detailUK 50/65-inch tables: Acoustic Multi-Audio with two bass-reflex full-range speakers and two sound-positioning tweeters, X-Balanced Speaker, 10 W + 10 W (20 W). Other sizes’ unpublished/unread amplifier totals are not borrowed.European maker 55/65-inch and UK 85-inch tables list two bass-reflex full-range speakers and two tweeters, 10 W + 10 W + 5 W + 5 W (30 W), Acoustic Multi-Audio and X-Balanced Speaker. Tom’s Guide instead says its US 55/65-inch lacks X-Balanced Speaker; that regional claim is not applied to the UK configuration. Unread 75-inch audio figures are not borrowed.
Audio featuresDolby Atmos and DTS Digital Surround; Voice Zoom 2, room/user-position calibration and 3D Surround Upscaling.Dolby Atmos and DTS Digital Surround, Voice Zoom 2, room/user-position calibration, 3D Surround Upscaling and Acoustic Center Sync with compatible Sony soundbars.
Voice assistantsVoice remote; UK maker says no built-in microphone. The UK X94J variant’s different feet and Rich Colour Enhancer identified by What Hi-Fi? are not assigned to X90J.Voice remote; UK and Ireland X90K tables explicitly say no built-in microphone. The tested US model has a hands-free microphone; UK X93K/X94K variants are distinct. Optional BRAVIA CAM is sold separately.
CastingChromecast built-in, Apple AirPlay and HomeKit. Google TV is confirmed by maker Japan and both exact reviews; UK support labels the underlying Android TV system.Chromecast built-in, Apple AirPlay and HomeKit.
TV tunersUK twin DVB-T/T2, DVB-C and DVB-S/S2 tuners; analogue and CI+.European twin DVB-T/T2, DVB-C and DVB-S/S2 tuners; analogue and CI+. The US reviews’ ATSC 3.0 tuner is regional.
USB2 × side USB according to current UK maker tables. What Hi-Fi? describes three; maker count is retained. USB HDD recording supported.2 × side USB; European USB HDD recording supported.
Ethernet1 × side Ethernet LAN.1 × side Ethernet LAN.
Optical audio out1 × side digital audio output.1 × side digital audio output.
Design and power
SizeWithout stand, W × H × D: 50-inch 111.9 × 64.9 × 7.0 cm; 55-inch 123.3 × 71.1 × 7.2 cm; 65-inch 145.2 × 83.4 × 7.2 cm; 75-inch 167.5 × 96.2 × 7.3 cm. All configuration weights exclude stand; maker does not publish with-stand weights in these tables. TechRadar labels the 65-inch with-stand measurements as without stand; maker dimensions are retained.Without stand, W × H × D: 55-inch 123.3 × 71.1 × 7.2 cm; 65-inch 145.2 × 83.4 × 7.2 cm; 75-inch 167.5 × 96.2 × 7.3 cm; 85-inch 190.1 × 109.0 × 7.3 cm. With-stand weights respectively 18.5, 24.0, 35.8 and 47.5 kg. Maker UK mounting table independently confirms all no-stand weights.
Stand50-inch foot width 66.5 cm, with stand 111.9 × 71.5 × 28.6 cm. UK 55/65/75-inch have standard and narrow positions: widths 106.1/45.8, 120.8/46.0 and 133.0/55.9 cm respectively. Their with-stand dimensions are 123.3 × 78.4 × 33.8, 145.2 × 90.5 × 33.8 and 167.5 × 104.0 × 41.0 cm.Three positions: standard, narrow and raised for a soundbar. Standard/narrow foot widths: 55-inch 102.7/42.4 cm; 65-inch 117.4/43.4 cm; 75-inch 136.1/50.9 cm; 85-inch 156.7/60.1 cm. Standard with-stand W × H × D: 55-inch 123.3 × 74.0 × 33.1 cm; 65-inch 145.2 × 86.3 × 33.1 cm; 75-inch 167.5 × 99.2 × 39.8 cm; 85-inch 190.1 × 112.5 × 46.9 cm. Raised heights are 78.0, 90.3, 103.2 and 116.5 cm respectively.
VESA pattern50-inch 200 × 200 mm; 55/65/75-inch 300 × 300 mm.55/65/75-inch 300 × 300 mm; 85-inch 400 × 400 mm.
Power useUK 75-inch energy consumption 164 kWh per 1000 hours. UK 50/75-inch standby 0.50 W; network standby 2.00 W over Wi-Fi/LAN or 1.0 W over Bluetooth.European 55-inch published energy consumption 93 kWh per 1000 hours; 65-inch 110 and UK 75-inch 118. European 65-inch standby 0.50 W; network standby 2.00 W over Wi-Fi/LAN or 1.0 W over Bluetooth.
ColoursBlack bezel and Titanium Black Slim Blade Stand.Black bezel and dark-silver Metal Slim Blade Stand.
In the boxTable-top stand, voice remote, batteries, power cord and instructions. Maker Japan records first 50-inch sale on 24 April 2021, 55/65-inch on 1 May and 75-inch on 22 May; April month precision is retained. Launch-review reports of missing UK apps are historical, not a claim about current software.Table-top stand, voice remote, conventional remote, batteries, power cord and instructions. Release month is the named TechRadar fallback: its exact-model review gives 25 April 2022. Maker Hong Kong’s June release lists later planned July/September availability, which does not establish the earliest sale. UK spec fetches failed; Ireland exact-model specifications fill the bounded gap, with UK 75/85 specifications and mounting table retained. The review’s 77-inch price line conflicts with its own 75-inch size list and maker tables; no 77-inch configuration is added.

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