LG OLED B3 vs Sony BRAVIA A1

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

Better figure, where one is clearly better

OLED B3 compared with BRAVIA A1
LGOLED B3SonyBRAVIA A1
Overview
ReleasedApril 20232017
Display
PanelOLEDOLED
Panel detail–Self-emissive OLED. HDTVTest measured a 120 Hz panel on its exact 65-inch UK review sample; Sony's UK sheets do not publish one native rate for all three sizes, so no series-wide Hz is assigned.
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate120 Hz–
HDR formatsDolby Vision, HDR10, HLGHDR10, HLG, Dolby Vision
HDR extras–Sony UK says HDR10 and HLG are supported; Dolby Vision was added later by firmware, in April 2018 in Europe rather than at the 2017 launch.
Picture processingAI Picture Pro, AI Super Upscaling 4K, Dynamic Tone Mapping, AI Brightness Control and Filmmaker ModeX1 Extreme, 4K X-Reality PRO, Dual database processing, Object-based HDR remaster and Super bit mapping 4K HDR.
Motion handlingUK sheets label 100Hz native and explicitly support 4K 120fps HFR over HDMI.Sony lists Motionflow XR without a native Hz figure on its UK sheets. HDTVTest measured 120 Hz on the 65-inch UK sample, with 650 lines of motion resolution when Motionflow was engaged.
Viewing angle–HDTVTest measured a very wide 166-degree viewing cone on its 65-inch sample.
Sizes
Sizes55, 65, 77″55, 65, 77″
Largest size77″77″
Gaming
HDMI ports4 (2 HDMI 2.1 at 4K 120 Hz+) (better)4 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateHDMI VRR, FreeSync, G-Sync CompatibleNone
Auto low latency modeYes–
HDMI detailFour HDMI inputs, with 4K 120Hz, VRR, ALLM and QMS on two; eARC on HDMI 3. RTINGS identifies the two 4K 120Hz inputs as HDMI 3 and 4.Four HDMI inputs with HDCP 2.2 and ARC; HDTVTest found only inputs 2 and 3 accept 4K 60 Hz at higher bit depth/chroma. These are HDMI 2.0-era inputs, not HDMI 2.1 at 4K 120 Hz.
Input lag–HDTVTest measured 47 ms at 1080p and 31 ms at 4K on the 65-inch UK sample, in its tested modes.
Game featuresHGiG, Game Optimiser and Game Dashboard; FreeSync Compatible and G-Sync CompatibleGame and Graphics picture modes; no VRR or ALLM claim in Sony's UK A1 material.
Smart TV and sound
Smart TV platformwebOSAndroid TV
Processorα7 AI Processor 4K Gen64K HDR Processor X1 Extreme
Speakers20 W, 2.0 channels50 W, Acoustic Surface actuators and rear subwoofer channels (better)
Dolby AtmosYes–
eARCYes–
Wi-FiWi-Fi 5Wi-Fi 802.11a/b/g/n/ac
Bluetooth5.0Bluetooth 4.1
Speaker detail20 W, 2.0-channel down-firing speakersSony Acoustic Surface uses panel actuators and a rear subwoofer. Sony lists five 10 W outputs, totalling 50 W; both exact reviews praised sound alignment with on-screen action.
Audio featuresDolby Atmos, Clear Voice Pro and AI Sound Pro virtual 5.1.2 up-mix–
CastingApple AirPlay 2Chromecast built into Android TV, per Sony UK.
TV tuners–Two digital terrestrial/cable tuners and two satellite tuners; DVB-T/T2, DVB-C and DVB-S/S2.
Software updatesLaunch webOS 23; UK maker lists security updates until 31 December 2027–
USBTwo USB 2.0 inputsThree USB ports, one side and two bottom; Sony lists USB HDD recording.
EthernetOne Ethernet inputOne bottom Ethernet input.
Optical audio outOne optical digital audio outputOne bottom optical digital output.
Design and power
SizeWithout stand (W × H × D): 55″ 1228 × 708 × 46.9 mm; 65″ 1449 × 832 × 46.9 mm; 77″ 1723 × 992 × 55.3 mmWithout support stand (W × H × D), Sony UK: 55″ 1228 × 711 × 86 mm, 65″ 1451 × 834 × 86 mm, 77″ 1721 × 997 × 99 mm. Sony separately gives a 7.8 mm thin panel section for 55/65; it is not the total depth.
StandCentre stand footprint: 55″ and 65″ 559 × 246 mm; 77″ 749 × 270 mmRear leaning support slate hides electronics and subwoofer; Sony's with-stand depth is 339 mm for 55/65 and 399 mm for 77. Sony UK announced 77-inch UK availability for late September 2017, after the smaller sizes.
VESA pattern55″ and 65″ 300 × 200 mm; 77″ 400 × 200 mm400 × 200 mm for 55/65; 400 × 300 mm for 77.
Power useUnder 0.5 W in standby–
In the boxMagic Remote with two AA batteries and attached power cableSony UK lists stand, voice remote, batteries, IR blaster, power cord, operating instructions and quick setup guide.

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