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LG OLED B9 vs Panasonic MZ2000

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

Better figure, where one is clearly better

LGOLED B9PanasonicMZ2000
Overview
Released2019August 2023
Display
PanelOLEDOLED
Panel detail–Panasonic calls the 55- and 65-inch panels Master OLED Ultimate with Micro Lens Array and a multi-layer heat sink. Its 77-inch UK page calls that larger, different panel Master OLED Pro Cinema Size without Micro Lens Array.
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate120 Hz120 Hz
HDR formatsDolby Vision, HDR10, HLGDolby Vision, HDR10, HDR10+, HLG
HDR extrasAdvanced HDR by Technicolor also supportedDolby Vision IQ, HDR10+ Adaptive and HLG Photo; Filmmaker Mode adjusts white balance for ambient light.
Peak brightness–AVForums measured 1,426 cd/m² on a 10% HDR window in Filmmaker Mode on the 55-inch MLA set; this is not a 77-inch figure.
Colour range–AVForums measured 98% DCI-P3 coverage on its 55-inch MLA sample; TechRadar measured 99.45% on a separate 55-inch sample.
Picture processingAI Picture, AI Brightness, 4K Upscaler and dynamic tone mappingHCX Pro AI Processor, Streaming 4K Remaster, Filmmaker Mode and Auto AI; Micro Lens Array applies only to the 55- and 65-inch versions.
Picture modes–Filmmaker Mode, True Game, True Cinema and Panasonic Professional modes, including calibration controls.
Motion handlingNative 120Hz (RTINGS); exact LG France 55-inch sheet confirms 4K HFR at 120fps over HDMI and USB. Original UK and Austrian sheets retain the launch wording that HDMI HFR would be enabled by update.Up to 120 Hz native refresh and 4K 120 Hz input on HDMI1 and HDMI2. AVForums found clean 24 fps cadence with interpolation off on the reviewed 55-inch model.
Sizes
Sizes55, 65, 77″55, 65, 77″
Largest size77″77″
Gaming
HDMI ports4 (all HDMI 2.1 at 4K 120 Hz+)4 (2 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateHDMI VRR, G-Sync CompatibleHDMI VRR, FreeSync Premium, G-Sync Compatible
Auto low latency modeYesYes
HDMI detailFour HDMI 2.1 inputs, one rear and three side; eARC on HDMI 2. RTINGS' original test lacked an HDMI 2.1 source and did not measure 4K 120Hz input.Four HDMI inputs. Panasonic's UK manuals specify HDMI1 and HDMI2 for 4K 120 Hz, VRR, AMD FreeSync Premium and NVIDIA G-SYNC compatibility; HDMI2 carries eARC. HDMI3 and HDMI4 accept 4K at lower frame rates.
Input lag–AVForums measured 9.3 ms at 4K 60 Hz and 5.7 ms at 120 Hz on its 55-inch sample. TechRadar measured 15.2 ms at 4K 60 Hz on a separate 55-inch sample; test settings differed.
Game featuresHDMI VRR and ALLM. RTINGS records G-Sync Compatible firmware support in its June 2020 update; this is a later feature, rather than a launch-day capability. No FreeSync support is claimed.True Game picture mode, Game Control Board, VRR and ALLM. Dolby Vision gaming is limited to 4K 60 Hz according to the independent AVForums test.
Smart TV and sound
Smart TV platformwebOSmy Home Screen
Processorα7 Gen2 Intelligent ProcessorHCX Pro AI Processor
Speakers40 W, 2.2 channels5.1.2 channels
Dolby AtmosYesYes
eARCYesYes
Wi-FiWi-Fi 5 (802.11ac)Built-in dual-band IEEE 802.11a/b/g/n/ac
Bluetooth5.0Bluetooth 5.0
Speaker detail–Panasonic UK manuals specify 150 W for 55 inches (70 W front array + 15 W × 2 side + 15 W × 2 upward + 20 W woofer), 160 W for 65 inches (80 W front array with the same remaining outputs), and 170 W for 77 inches (90 W front array with the same remaining outputs).
Audio featuresDolby Atmos, AI Sound, Clear Voice III and DTS decoding; RTINGS confirms eARC Dolby Atmos and DTS:X passthrough to compatible receivers.Technics-tuned 360° Soundscape Pro with Dolby Atmos, front array, side- and upward-firing speakers, room calibration and directional Sound Focus; 3.5 mm headphone/subwoofer socket.
Voice assistants–Voice-control microphone in the supplied Bluetooth remote; service availability depends on region and firmware.
CastingApple AirPlay 2; regional maker sheets include this later featurePanasonic my Home Screen 8.0 includes streaming apps and local media features; app availability changes over time.
TV tuners–UK DVB-S/S2 satellite, DVB-T/T2 terrestrial, DVB-C cable and PAL I analogue tuners; two satellite inputs.
Software updatesFirst sale retained at year precision because no exact maker on-sale month was established by the bounded source search.–
USBThree USB ports, two rear and one sideOne USB 3.0 and two USB 2.0 ports.
EthernetEthernet LAN portRJ45 10/100 Ethernet.
Optical audio outOptical digital audio output; headphone output also fittedFibre-optic PCM and Dolby Audio output.
Design and power
SizeWithout stand (W × H × D): 55″ 1228 × 706 × 46.9 mm; 65″ 1449 × 830 × 46.9 mm; 77″ 1723 × 992 × 55.3 mm. Exact PLA regional LG sheets fill missing UK size measurements.With recommended pedestal, Panasonic UK lists 55-inch 1227 × 786 × 350 mm and 25.5 kg; 65-inch 1448 × 910 × 350 mm and 30.5 kg; 77-inch 1723 × 1073 × 350 mm and 50 kg.
Stand55″ and 65″ stand width 559 mm; 77″ with stand 1723 × 1043 × 270 mmSupplied central swivel pedestal.
Power use–Panasonic's 65-inch UK product sheet lists 112 W SDR, 171 W HDR and 0.5 W standby; the other sizes are not represented by those figures.
Energy class–The 65-inch UK product information sheet gives G for SDR and HDR under the current energy-label system; no common class is claimed for all sizes.
VESA pattern55″ and 65″: 300 × 200 mm; 77″: 400 × 200 mm–
In the boxMagic Remote and power cable; UK 65-inch sheet lists two AA batteriesPanasonic's UK instructions list the remote control, batteries, pedestal and mains lead. TechRadar dates UK release to August 2023; the maker's January announcement does not establish the first on-sale day.

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