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Panasonic VIERA DX902 vs Panasonic VIERA ST50

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

Better figure, where one is clearly better

PanasonicVIERA DX902PanasonicVIERA ST50
Overview
ReleasedMarch 2016March 2012
Display
PanelLED LCDPlasma
Panel detailPanasonic specifies an LED LCD panel with full-array local dimming. HDTVTest identifies a 120 Hz VA LCD panel in the reviewed 58-inch set; Panasonic's 3000 Hz Backlight Motion Rate is not the native refresh rate.UK ST50B family is 42, 50, 55 and 65 inches. Full HD active-shutter 3D; optional Bluetooth eyewear. Focused Field Drive is a panel-driving measure, not native refresh; the maker's US 2500 FFD and UK review's 2000 Hz descriptions are regional and not entered as native Hz.
Resolution3840 × 2160 (4K)1920 × 1080 (Full HD)
Refresh rate120 Hz–
HDR formatsHDR10None
Dimming zones512–
Peak brightnessHDTVTest measured 1,310 cd/m² on the 58-inch set; results and picture modes vary by scene and firmware.–
Colour rangeHDTVTest measured 98% DCI-P3 coverage on the 58-inch set.–
Picture processingStudio Master HCX+ processing and 512 independently dimmed backlight zones. AVForums reports the same zone count for the 65-inch UK model.NeoPlasma, Infinite Black Pro and Intelligent Frame Creation (exact reviews); maker menu includes P-NR and ambient-light adjustment.
Motion handlingHDTVTest measured a native 120 Hz panel in the 58-inch set and reported some dark smearing; 3D judder and crosstalk were noticeable.Native panel Hz unpublished in the read UK manual and omitted; input and focused-field drive frequencies do not establish it.
Viewing angleBoth independent 58-inch tests found contrast and colour deteriorated away from the centre seat.–
Sizes
Sizes58, 65″42, 50, 55, 65″
Largest size65″65″
Gaming
HDMI ports4 (0 HDMI 2.1 at 4K 120 Hz+)3 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateNoneNone
HDMI detailFour HDMI inputs; HDMI2 supports ordinary Audio Return Channel. The UK manual lists component and composite video inputs, CI+ and an SD card slot.Three HDMI inputs with ARC on HDMI2; 3D, Content Type, Deep Colour and x.v.Colour, HDAVI Control 5. SCART, component and composite via included adaptors. Home Cinema Choice lists D-sub PC and analogue audio output, but the UK maker connector table lists neither; those disputed connections are omitted.
Input lagHDTVTest measured 38 ms in Game mode on its 58-inch sample. AVForums measured 42 ms on a separate 58-inch sample; these are review measurements, not a Panasonic specification.–
Smart TV and sound
Smart TV platformmy Home ScreenVIERA Connect
ProcessorStudio Master HCX+–
Speakers40 W18 W
Wi-FiBuilt-in dual-band IEEE 802.11a/b/g/nWi-Fi 4 (802.11n), built-in
BluetoothBluetooth 3.0 for accessories and active 3D glasses3.0
Speaker detailPanasonic specifies four 10 W speakers, totalling 40 W.Two front speaker arrays plus woofer; 4 W + 4 W + 10 W, 18 W. Woofer diameter is 80 mm on 42/50/55-inch and 100 mm on 65-inch.
Audio featuresActive-shutter 3D glasses are supported by Bluetooth but sold separately; 3.5 mm headphone socket.–
CastingPanasonic's my Home Screen 2.0 offers network media, screen mirroring and streaming apps; service availability varies over time.VIERA Connect service portal. UK manual says no full web browser function, while Home Cinema Choice and the US maker launch notice say browser; retain the regional/documentation conflict and do not promise full browsing. Legacy apps depend on service providers.
TV tunersUK DVB-S/S2 Freesat, DVB-T/T2 Freeview HD and PAL I analogue tuners; two satellite inputs.UK DVB-T/T2 (Freeview HD), analogue PAL I and CI Plus; Ireland reception differs in the maker table.
USBTwo USB 2.0 ports and one USB 3.0 port; SD card slot.Two USB 2.0 inputs plus SD card slot; media playback and USB keyboard/gamepad support.
EthernetRJ45 10/100 Ethernet.RJ45 10BASE-T/100BASE-TX; DLNA.
Optical audio outOptical digital audio output supports PCM and Dolby Digital.Fibre-optic PCM/Dolby Digital/DTS output; 3.5 mm stereo headphone jack.
Design and power
SizeTV only: 58-inch 1297 × 759 × 64 mm, 27.5 kg; 65-inch 1457 × 844 × 64 mm, 34.5 kg. With stand: 58-inch 1297 × 804 × 334 mm, 32.5 kg; 65-inch 1457 × 888 × 334 mm, 42.5 kg.Without pedestal: 42-inch 1003 × 609 × 50 mm, 17.5 kg; 50-inch 1180 × 709 × 50 mm, 23 kg; 55-inch 1295 × 774 × 50 mm, 28 kg; 65-inch 1508 × 894 × 52 mm, 38 kg. Configuration weights exclude pedestal.
StandSupplied angled pedestal; 400 × 400 mm wall-mount holes.Included pedestal. With pedestal: 42-inch 1003 × 656 × 320 mm, 20.5 kg; 50-inch 1180 × 757 × 335 mm, 27 kg; 55-inch 1295 × 823 × 357 mm, 32.5 kg; 65-inch 1508 × 943 × 400 mm, 43.5 kg.
VESA pattern–Maker bracket mounting holes: 400 × 300 mm (42/50-inch), 500 × 300 mm (55-inch), 684 × 300 mm (65-inch); M8 screws. Do not substitute a rounded VESA size.
Power usePanasonic product fiche on-mode average: 183 W for 58 inches and 226 W for 65 inches; 0.50 W standby and 0.30 W off mode.On-mode average 133/180/205/255 W and rated 295/355/400/450 W for 42/50/55/65-inch respectively. Standby 0.30 W, off 0.25 W.
Energy classB for both UK sizes under the historical Panasonic product fiche.C under the original 2012 label scheme.
In the boxUK manual lists a remote control, pedestal, mains lead and instructions; 3D glasses are optional. AVForums reported DX902 was already on sale in UK retailers on 2 March 2016; Panasonic's exact first-sale date was not found, so release precision is March 2016.Pedestal, N2QAYB000715 remote/R6 batteries, mains lead, clamp/ferrites and AV terminal adaptors. Optional 3D eyewear and communication camera. Panasonic's 8 March 2012 notice explicitly says US 50/55-inch ST50 models are now available; UK configurations are separate and larger US sizes followed later. Release reflects first confirmed family sale, not the UK review dates.

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