Panasonic VIERA AX902 vs Panasonic VIERA ST50

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VIERA AX902 compared with VIERA ST50

	PanasonicVIERA AX902	PanasonicVIERA ST50
Overview
Released
Released	2014	March 2012
Display
Panel
Panel	LED LCD	Plasma
Panel detail
Panel detail	Panasonic specifies an LED LCD panel with Local Dimming Ultra. AVForums identifies the reviewed 55-inch panel as IPS with full-array direct backlighting and 128 zones; that zone count is not claimed for the 65-inch size. Panasonic's 3000 Hz Backlight Scanning claim is not a 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.
Resolution
Resolution	3840 × 2160 (4K) (better)	1920 × 1080 (Full HD)
HDR formats
HDR formats	None	None
Picture processing
Picture processing	Studio Master Drive, Local Dimming Ultra, Studio Master Colour, 4K Pure Direct and Intelligent Frame Creation Pro. The 55-inch zone count is reported by AVForums, not the UK manual.	NeoPlasma, Infinite Black Pro and Intelligent Frame Creation (exact reviews); maker menu includes P-NR and ambient-light adjustment.
Picture modes
Picture modes	Dynamic, Normal, Cinema, THX Cinema, THX Bright Room, True Cinema, Monitor, Custom, Professional 1 and Professional 2; BT.1886 gamma is available.	–
Motion handling
Motion handling	HDTVTest found clear motion with Intelligent Frame Creation enabled but mild 24p judder; AVForums preferred turning interpolation off for films.	Native panel Hz unpublished in the read UK manual and omitted; input and focused-field drive frequencies do not establish it.
Viewing angle
Viewing angle	The reviewed 55-inch IPS panel retained contrast and colour better off-axis than many contemporary VA LCDs according to HDTVTest.	–
Sizes
Sizes
Sizes	55, 65″	42, 50, 55, 65″
Largest size
Largest size	65″	65″
Gaming
HDMI ports
HDMI ports	4 (0 HDMI 2.1 at 4K 120 Hz+)	3 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rate
Variable refresh rate	None	None
HDMI detail
HDMI detail	Four HDMI inputs support 4K and 3D; HDMI2 supports ordinary Audio Return Channel. The UK manual also lists DisplayPort for 4K, one SCART, component and composite inputs, CI+ and an SD card slot. HDTVTest confirmed full HDMI 2.0 bandwidth and HDCP 2.2 on the reviewed 55-inch unit.	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 lag
Input lag	AVForums measured 90 ms in Game mode on the 55-inch set; HDTVTest measured 87 ms on its separate 55-inch sample.	–
Smart TV and sound
Smart TV platform
Smart TV platform	my Home Screen	VIERA Connect
Processor
Processor	Quad Core Pro5	–
Speakers
Speakers	18 W	18 W
Wi-Fi
Wi-Fi	Built-in dual-band IEEE 802.11a/b/g/n	Wi-Fi 4 (802.11n), built-in
Bluetooth
Bluetooth	Bluetooth 3.0 for accessories	3.0
Speaker detail
Speaker detail	Panasonic specifies 4 W + 4 W stereo drivers and a 10 W woofer.	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 features
Audio features	3.5 mm headphone socket and Bluetooth accessory support.	–
Casting
Casting	Panasonic's my Home Screen platform supports network media, TV Anywhere, 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 tuners
TV tuners	UK DVB-S/S2 Freesat, DVB-T/T2 Freeview HD and PAL I analogue tuners; two satellite dish inputs.	UK DVB-T/T2 (Freeview HD), analogue PAL I and CI Plus; Ireland reception differs in the maker table.
USB
USB	Two USB 2.0 ports and one USB 3.0 port support media and recording to a registered drive; SD card slot.	Two USB 2.0 inputs plus SD card slot; media playback and USB keyboard/gamepad support.
Ethernet
Ethernet	RJ45 10/100/1000 Ethernet for network services and local sharing.	RJ45 10BASE-T/100BASE-TX; DLNA.
Optical audio out
Optical audio out	Fibre-optic PCM, Dolby Digital and DTS output.	Fibre-optic PCM/Dolby Digital/DTS output; 3.5 mm stereo headphone jack.
Design and power
Size
Size	TV only: 55-inch 1238 × 741 × 59 mm and 26 kg; 65-inch 1457 × 864 × 60 mm and 35 kg. With pedestal: 55-inch 1238 × 740 × 283 mm and 40 kg; 65-inch 1457 × 863 × 356 mm and 52 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.
Stand
Stand	Supplied rear-weighted pedestal. Panasonic lists 400 × 400 mm wall mounting 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
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 use
Power use	Panasonic product fiche on-mode average: 210 W for 55 inches and 229 W for 65 inches; 0.30 W standby and off mode for both.	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 class
Energy class	C for UK 55-inch and B for UK 65-inch under the historical Panasonic product fiche.	C under the original 2012 label scheme.
Colours
Colours	Black glass front with silver edge trim.	–
In the box
In the box	Standard and touchpad remotes, two pairs of passive 3D glasses, pedestal, mains lead and instructions. Panasonic's 2014 UK model list and manual confirm 55- and 65-inch AX902B sets; the distinct 85-inch TX-85X942B is excluded. Exact first-sale month remains unconfirmed; contemporary UK coverage places availability in November 2014.	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.