77-inch LG OLED AI B5 4K Smart TV (2025) (International Version)

The 77-inch LG B5 is a 2025 4K OLED TV that pairs self-lit OLED contrast with the Alpha 8 Gen2 processor, native 120Hz and up to 120Hz VRR. It is a practical option for film viewing and compatible 4K120 console sources, without the higher PC refresh ceiling of the G5.

The specification table below uses LG’s Hong Kong OLED77B5PCA as a regional reference. For this international-version product, confirm the complete supplied regional model, tuner and accessories before ordering.

Model-specific reference specifications

Films, sport and OLED care

Self-lit pixels can switch off in dark areas, avoiding LCD backlight leakage around those pixels. Dolby Vision, HDR10 and HLG support are useful when your source supplies those formats. Picture processing and upscaling work with the source available; they do not restore detail absent from a low-quality stream. Room reflections, programme quality and your chosen picture mode still matter.

For long periods of static logos, game HUDs or signage, consider OLED image-retention risk and follow LG’s panel-care instructions. Mixed viewing and care functions are not a guarantee against burn-in. Dolby Atmos and AI virtual up-mixing do not turn the built-in speakers into a physical multi-speaker surround system; an external Sound Bar is optional.

Gaming and connection planning

LG lists G-Sync Compatible, FreeSync Compatible, HGiG, ALLM and Game Optimizer for this HK reference. Use an appropriate HDMI cable and supported device, game and settings for 4K120; a compatible PC is needed to use the higher VRR ceiling where offered. Published pixel-response figures are not measured television input lag, and neither VRR nor ALLM guarantees blur-free or lag-free play.

A Sound Bar using HDMI3 eARC occupies one of the four inputs. Count consoles, a set-top box and disc player before planning the layout. webOS 25 app availability, voice services and subscriptions depend on the regional unit and service provider.

Placement for 77 inches

For this large screen, check lift interiors, door openings and corridor turns using carton dimensions, not just the visible screen. Consider sightlines from every seat as well as viewing distance. The bare-body measurements above do not include the stand or packing box. Wall mounting requires a suitable bracket, load rating, wall structure and fixing points; confirm what accessories are supplied.

Hong Kong ordering and service

Delivery and installation: Check delivery, paid installation and recycling arrangements before ordering. Tabletop and wall-mount installation are separate paid services; access and mounting conditions affect the arrangement. Kwun Tong is for stock and collection only, with no demonstrations or side-by-side viewing. WhatsApp us about stock and collection.

Warranty: Eligible international-version TVs receive three years of on-site inspection and repair labour; replacement parts are quoted separately. Eligibility, exclusions and any exchange arrangements are subject to the full TV warranty policy. Hong Kong licensed stock follows the applicable brand and model terms.

Frequently asked questions

Does B5 run at 120Hz natively?

Its native panel refresh is 120Hz. The HK B5 reference also lists VRR up to 120Hz.

Can this international version receive Hong Kong aerial TV?

Confirm the complete supplied regional model and DTMB support. A generic “digital tuner” or ATSC/DVB label alone does not establish compatibility with Hong Kong broadcasting.

What should I check before wall mounting?

Confirm the actual unit’s VESA pattern, weight and included accessories, then check the wall structure and paid installation arrangement.

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Manufacturer specification reference: official model information. Regional-reference specifications above are not a confirmation of an unspecified supplied suffix.