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LG OLED B8 vs LG OLED C7

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

Better figure, where one is clearly better

LGOLED B8LGOLED C7
Overview
Released20182017
Display
PanelOLEDOLED
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate120 Hz120 Hz
HDR formatsDolby Vision, HDR10, HLGDolby Vision, HDR10, HLG
HDR extrasAdvanced HDR by Technicolor also supported–
Picture processing4K Upscaler, adaptive colour enhancement, noise reduction and enhanced dynamic tone mappingColour Master Engine, Active Depth Enhancer, 4K upscaling and Active HDR processing
Motion handlingNative 120Hz panel with motion interpolation and Motion Pro black-frame insertion (RTINGS). HDMI does not accept 4K at 120Hz; What Hi-Fi? reports internal HFR playback cannot combine HFR with HDR on the α7 processor.Native 120Hz panel and interpolation to 120fps (RTINGS); 4K HDMI input is limited to 60Hz. No optional black-frame insertion (RTINGS).
Sizes
Sizes55, 65″55, 65″
Largest size65″65″
Gaming
HDMI ports4 (0 HDMI 2.1 at 4K 120 Hz+)4 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateNoneNone
HDMI detailFour HDMI 2.0 inputs, one rear and three side; ARC on HDMI 2. No full-bandwidth HDMI 2.1 input (What Hi-Fi?).Four HDMI inputs with ARC and Simplink HDMI CEC; no full-bandwidth HDMI 2.1 or VRR (RTINGS)
Game featuresGame picture mode; no variable refresh rate (RTINGS)Game mode; no variable refresh rate (RTINGS)
Smart TV and sound
Smart TV platformwebOSwebOS
Speakers–40 W, 2.2 channels
Processorα7 Intelligent Processor–
Dolby AtmosYesYes
Wi-FiWi-Fi 5 (802.11ac)Wi-Fi
Bluetooth4.2–
Speaker detailUK PLA models: 40 W 2.2-channel system with two woofers; UK SLC models: 20 W 2.0-channel system. Both are down-firing.Down-firing speakers with 20 W woofer output within the 40 W total
Audio featuresClear Voice III, One Touch Sound Tuning, adaptive sound control and DTS decodingMagic Sound Tuning, Dolby Surround and DTS decoding. The launch UK sheet says Blu-ray Dolby Atmos requires a software update later in 2017; Expert Reviews distinguishes Dolby Digital Plus decoding from TrueHD.
Voice assistantsUK Google Assistant requires software update and is unavailable in the Republic of Ireland; compatible Google Home and Alexa devices sold separately, with the same stated regional restrictionNatural voice recognition through the supplied Magic Remote
Casting–Miracast and WiDi supported
Software updatesLG's 2018 lineup announcement confirms the B8 series; an exact earliest on-sale month was not established, so release retains year precision.webOS 3.5 with Freeview Play. LG's Australian launch scheduled late March 2017, and its June US release confirms C7 already available; an exact earliest sale month was not established, so release uses year precision.
TV tunersUK DVB-T2/C/S2UK DVB-T2/C/S2; digital recording and eight-day programme guide
USBThree USB ports, two rear and one sideThree USB ports, including one USB 3.0 port
EthernetEthernet LAN portEthernet LAN port
Optical audio outOptical digital audio output and headphone output on UK modelsOptical digital audio output and headphone/line output on UK models
Design and power
SizeWithout stand (W × H × D): both 55″ variants 1228 × 707 × 47 mm; both 65″ variants 1449 × 831 × 47 mmWithout stand (W × H × D): 55″ 1230 × 710 × 46.6 mm; 65″ 1453 × 833 × 46.6 mm
StandPLA Alpine stand versus SLC Crescent stand (LG confirmation in What Hi-Fi?). With stand (W × H × D): 55″ PLA 1228 × 752 × 220 mm; 55″ SLC 1228 × 776 × 319 mm; 65″ PLA 1449 × 876 × 220 mm; 65″ SLC 1449 × 901 × 319 mm.Stiletto pedestal stand; with stand (W × H × D): 55″ 1230 × 750 × 217 mm; 65″ 1453 × 873 × 217 mm
VESA pattern300 × 200 mm for both sizes and variants300 × 200 mm for both sizes
Power use–0.3 W standby; 100–240 V AC, 50–60Hz supply
In the boxMR18 Magic Remote, two AA batteries and attached power cableMagic Remote, batteries, power cable and owner's manual

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