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Samsung LED F6400 vs Sony X90J

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

Better figure, where one is clearly better

SamsungLED F6400SonyX90J
Overview
Released2013April 2021
Display
PanelLED LCDLED LCD
Panel detailEdge-lit LCD on the 40-inch HDTVTest sample. Samsung's family manual supports active 3D on 40-inch and larger models; its 200 Clear Motion Rate is not native refresh.–
Resolution1920 × 1080 (Full HD)3840 × 2160 (4K)
Refresh rate–120 Hz
HDR formatsNoneHDR10, HLG, Dolby Vision
Picture processingHDTVTest identifies 200 Clear Motion Rate, without the higher Series 7's Micro Dimming, on its 40-inch UK model. Samsung's older online specification table is empty.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 zone count.
Picture modesHDTVTest's 40-inch set offers Movie mode, two- and ten-point white balance, colour management and separate blur and judder controls.Custom, Cinema, IMAX Enhanced, Game, Graphics, Photo, Dolby Vision Bright/Dark and Netflix Calibrated.
Motion handlingNative panel refresh is unpublished in the checked maker manual. HDTVTest found forced interpolation on 3D Blu-ray films in its 40-inch test, with judder when defeated using Game Mode.XR Motion Clarity; UK accepts 4K 120 Hz HDMI input and maker Japan explicitly lists a native 120 Hz panel.
Viewing angleHDTVTest observed colour and contrast washout beyond about 45 degrees off-axis on its 40-inch sample.–
Sizes
Sizes32, 40, 46, 50, 55, 65, 75″50, 55, 65, 75″
Largest size75″75″
Gaming
HDMI ports4 (0 HDMI 2.1 at 4K 120 Hz+)4 (2 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateNoneHDMI VRR
Auto low latency modeNoYes
HDMI detailFour HDMI sockets, component, composite and RGB SCART on the 40-inch UK set (HDTVTest and What Hi-Fi). The maker manual confirms HDMI-CEC; exact high-bandwidth features are not claimed.Four 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.
Input lag45 ms in Game Mode and 43 ms with the HDMI input labelled PC on the 40-inch sample, measured using a Leo Bodnar tester (HDTVTest).–
Game featuresManual Game Mode; no variable refresh or automatic low-latency switching.PlayStation 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.
Smart TV and sound
Smart TV platformSamsung Smart TVGoogle TV
ProcessorDual-core smart processor on the reviewed 40-inch model (HDTVTest)Cognitive Processor XR
Dolby Atmos–Yes
eARCNoYes
Wi-FiWi-Fi 802.11a/b/g/nWi-Fi 5 (802.11ac)
Bluetooth–4.2
Speaker detailSamsung's UK family manual lists two 10 W speakers on 32-, 40-, 46-, 50-, 55- and 65-inch models, and two 15 W speakers on 75 inches.UK 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.
Audio features–Dolby Atmos and DTS Digital Surround; Voice Zoom 2, room/user-position calibration and 3D Surround Upscaling.
Voice assistantsSamsung's original Voice Recognition; What Hi-Fi found it limited and inconsistent in its 2014 test.Voice 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.
CastingScreen Mirroring in Samsung's UK family manual.Chromecast 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.
TV tunersFreeview HD on the reviewed 40-inch UK set (HDTVTest and What Hi-Fi).UK twin DVB-T/T2, DVB-C and DVB-S/S2 tuners; analogue and CI+.
USBThree USB ports on the reviewed 40-inch set (HDTVTest and What Hi-Fi).2 × side USB according to current UK maker tables. What Hi-Fi? describes three; maker count is retained. USB HDD recording supported.
EthernetWired LAN connection in Samsung's UK family manual.1 × side Ethernet LAN.
Optical audio outOptical digital output on the reviewed 40-inch set (What Hi-Fi).1 × side digital audio output.
Design and power
SizeWidth × height × depth without stands from Samsung's UK manual: 32-inch 738.2 × 437 × 49.5 mm; 40-inch 928.2 × 543.8 × 49.6 mm; 46-inch 1059.8 × 617.7 × 49.6 mm; 50-inch 1135.6 × 659.6 × 49.8 mm; 55-inch 1250.4 × 724.6 × 48.8 mm; 65-inch 1470.1 × 848.2 × 55.9 mm; 75-inch 1678.8 × 960 × 57 mm. Configuration weights exclude stands.Without 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.
StandSamsung's UK manual specifies 20 degrees of swivel each way on 32- to 65-inch models, and no swivel on 75 inches.50-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.
VESA patternSamsung's UK manual lists 200 × 200 mm for 32 and 40 inches, and 400 × 400 mm for 46 to 75 inches.50-inch 200 × 200 mm; 55/65/75-inch 300 × 300 mm.
Power use–UK 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.
Colours–Black bezel and Titanium Black Slim Blade Stand.
In the boxSmart Touch and standard remotes with batteries, IR extension cable, CI adaptor, power cord and instructions. The maker manual includes active 3D glasses only for 40-inch and larger models.Table-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.

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