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Head to head

LG G3 OLED evo TV vs LG B4 OLED TV

LG G3 OLED evo TV leads 3 to 0 on the 3 rankable specs, but LG B4 OLED TV costs $900 less. Most of the 28 attributes tracked here are descriptive rather than numeric.

Catalog as of September 1, 2026

Why, in numbers

  • Panel type: LG G3 lists WOLED evo with MLA (LG sheet, 2026-09-02); LG B4 lists WOLED (LG sheet, 2026-09-02).
  • Peak brightness (HDR): LG G3 lists ~1,400–2,000 nits small-window HDR (other published figure, not on maker sheet); LG B4 lists ~650–700 nits HDR peak (other published figure, not on maker sheet).
  • Processor: LG G3 lists α9 Gen6 AI Processor 4K (LG sheet, 2026-09-02); LG B4 lists α8 AI Processor 4K (LG sheet, 2026-09-02).
  • Upscaling: LG G3 lists AI Super Upscaling (LG sheet, 2026-09-02); LG B4 lists AI Super Upscaling 4K (LG sheet, 2026-09-02).
  • Input lag (4K 120, game mode): LG G3 lists ~5 ms (other published figure, not on maker sheet); LG B4 lists ~5.5 ms (other published figure, not on maker sheet).

Manufacturer list price, not a live offer. Confirm current pricing before you buy.

LG G3 OLED evo TV
$2,1993 spec wins
Swap
LG B4 OLED TV
$1,2990 spec wins
Swap

Generational Upgrade Analysis

Generational Comparison

LG sibling models compared across generations.

Our recommendation: Compare the spec differences below to see if the price premium justifies the newer model's additions.

Buying for

Every rankable spec counts once. Pick a lens to score only what matters for your tv.

Straight answer

Overall: 3 to 0

Buy the LG G3.

  • Leads 3 of 3 rankable overall specs.
  • Peak brightness (HDR): ~1,400–2,000 nits small-window HDR vs ~650–700 nits HDR peak
  • Input lag (4K 120, game mode): ~5 ms vs ~5.5 ms
  • LG B4 is $900 cheaper. Pay the difference only if peak brightness (hdr) matters to you.
3 LG G33 rankable of 28 specsLG B4 0

Deal-breakers

tick what would make you walk away

  • row

    Static news tickers, game HUDs and desktop use can leave permanent marks over the years.

    Trips:LG G3 · Yes (mitigated by pixel shift / screen…Trips:LG B4 · Yes (mitigated by pixel shift and scree…
  • row

    Lamps and windows reflect in a bright room.

    Trips:LG G3 · GlossyTrips:LG B4 · Glossy

At a glance

The handful of numbers that decide most purchases in this category.

2 of 3 differ

Panel type

G3

WOLED evo with MLA

B4

WOLED

Peak brightness (HDR)

G3

~1,400–2,000 nits small-window HDR

B4

~650–700 nits HDR peak

HDMI 2.1 portssame

G3

4

B4

4

True 3-Year Cost of Ownership (TCO)

Upfront price + 3 years of consumables, fees & essential add-ons

LG G3

Upfront list price$2,199
Essential add-ons (Optional tabletop stand (wall mount only in box))+$149
3-Year Estimated Total$2,348

Comes with slim wall bracket; official swivel stand sold separately.

LG B4

Upfront list price$1,299
3-Year Estimated Total$1,299

Living Room Space & Placement Check

Real-world physical measurements for credenza width, soundbar clearance, and wall mounting.

Ergonomic & Spatial Check

TV Stand & Table Footprint

Check your media console width before buying wide-foot models.

G3

No stand in box (wall mount only; official stand ~$149)

B4

Standard pedestal or dual-foot support

Soundbar Clearance

Low bezel clearance may cause soundbars to block screen bottom or remote sensor.

G3

N/A on wall; ~2.8 in with optional swivel stand

B4

Standard clearance

Wall Mount Profile & Depth

G3

Ultra-slim 0.9 in flush gallery mount with zero gap

B4

Standard VESA wall depth

The 90-Day Owner Regret Check

Documented ergonomic quirks, hardware annoyances, and maintenance realities reported by real owners.

Post-Purchase Truths

G3: What to watch for

  • Hidden Cost

    Zero tabletop stand included in the box.

    Engineered as a flush gallery wall-mount TV. If you do not intend to drill into wall studs, the official LG swivel stand is an extra ~$149 purchase.

  • Hardware Quirk

    Subtle green/pink tint shift at extreme off-axis viewing angles.

    The Micro Lens Array (MLA) layer refracts light dramatically to boost brightness, but can introduce a mild chromatic tint when viewed past 45 degrees.

B4: What to watch for

  • Software / Apps

    Smart TV interface runs sponsored ads and banner recommendations.

    Like most modern smart TV platforms, the home menu highlights suggested streaming content and sponsored banner placement out of the box.

  • Ergonomics

    Thin integrated TV speakers lack low-end bass punch.

    Ultra-thin modern chassis leave minimal acoustic chamber depth, making a dedicated soundbar or audio system virtually mandatory for movie dialogues.

LG G3$2,1993 wins
LG B4$1,2990 wins

Picture

leads 1-0
Picture specifications. Middle column is LG G3 OLED evo TV, right column is LG B4 OLED TV.
Panel typeWOLED evo with MLAWOLED
Screen size65 inches65 inches
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Native refresh rate120 Hz120 Hz
Peak brightness (HDR)Not on the official sheet~1,400–2,000 nits small-window HDR (wins this row: higher)~650–700 nits HDR peak
ContrastOur summaryInfinite (per-pixel)Infinite (per-pixel)
Local dimmingPer-pixel (self-emissive)Per-pixel (self-emissive)
Viewing angleOur summaryExcellentExcellent
Screen finishGlossyGlossy
HDR formatsDolby Vision, HDR10, HLG (no HDR10+)Dolby Vision, HDR10, HLG (no HDR10+)

Processing

2 differences
Processing specifications. Middle column is LG G3 OLED evo TV, right column is LG B4 OLED TV.
Processorα9 Gen6 AI Processor 4Kα8 AI Processor 4K
Motion handlingOur summaryExcellent OLED response timeExcellent OLED response time
UpscalingAI Super UpscalingAI Super Upscaling 4K

Gaming

leads 1-0
Gaming specifications. Middle column is LG G3 OLED evo TV, right column is LG B4 OLED TV.
HDMI 2.1 ports44
4K 120HzYesYes
VRRYesYes
Auto low latency (ALLM)YesYes
Input lag (4K 120, game mode)Not on the official sheet~5 ms (wins this row: lower)~5.5 ms
G-Sync / FreeSyncNVIDIA G-Sync Compatible, FreeSyncNVIDIA G-Sync Compatible, AMD FreeSync Premium

Audio

1 differences
Audio specifications. Middle column is LG G3 OLED evo TV, right column is LG B4 OLED TV.
Speakers4.2 channel, 60W2.0 channel, 20W
Dolby AtmosYesYes
eARCYesYes

Smart TV

2 differences
Smart TV specifications. Middle column is LG G3 OLED evo TV, right column is LG B4 OLED TV.
Operating systemwebOS 23webOS 24
Voice assistantsThinQ, Alexa, Google AssistantLG ThinQ, Alexa, Apple Home

Design

leads 1-0
Design specifications. Middle column is LG G3 OLED evo TV, right column is LG B4 OLED TV.
ThicknessNot on the official sheetGallery design, ~24 mm flush to wall (wins this row: lower)~46 mm
Wall mountIncluded flush Gallery mountStandard VESA

Ownership

2 differences
Ownership specifications. Middle column is LG G3 OLED evo TV, right column is LG B4 OLED TV.
Burn-in riskOur summaryYes (mitigated by pixel shift / screen move)Yes (mitigated by pixel shift and screen care)
Warranty1 year (panel varies by region)1 year
Most rows are from the official spec sheet. Marked rows are other published figures or our summary, not lab tests we ran.

Which one should you buy

Pick this one if

LG G3 OLED evo TV

Flagship 65-inch MLA WOLED with gallery-style flush wall mount and webOS.

  • Perfect blacks and infinite contrast
  • MLA brightness competitive with bright QLEDs
  • Best-in-class HDMI 2.1 gaming suite

What you give up

  • OLED burn-in risk with static UI
  • Glossy panel reflects more than matte QLED

Pick this one if

LG B4 OLED TV

Value flagship 65-inch OLED TV featuring 4 full-bandwidth HDMI 2.1 ports, α8 AI processor, and Dolby Vision.

  • Four full-bandwidth HDMI 2.1 ports at an accessible OLED price point
  • Perfect blacks and infinite contrast with zero blooming
  • Ultra-low input lag and full VRR support for gaming

What you give up

  • Lower peak brightness than C4 and G4 series
  • Glossy screen reflects ambient light in bright rooms

Best for each use

Gaming

Console or PC play: low input lag, 120 Hz, enough HDMI 2.1 ports for every box

Too close to call on gaming from the spec sheets. Only input lag (4k 120, game mode) is rankable here.

  • G-Sync / FreeSync: NVIDIA G-Sync Compatible, FreeSync vs NVIDIA G-Sync Compatible, AMD FreeSync Premium

Movies

Dark-room films and HDR streaming: black levels, HDR formats, motion and upscaling

Too close to call on movies from the spec sheets. Only peak brightness (hdr) is rankable here.

  • Panel type: WOLED evo with MLA vs WOLED
  • Upscaling: AI Super Upscaling vs AI Super Upscaling 4K

Bright rooms

Daytime TV and sports in a sunny room: brightness, glare handling, wide seating

Too close to call on bright rooms from the spec sheets. Only peak brightness (hdr) is rankable here.

  • Burn-in risk: Yes vs Yes
  • Panel type: WOLED evo with MLA vs WOLED

Every answer above is scored from published figures. A lens uses only the rows that matter for that use, including marked rows that are not on the official sheet. Switch lenses interactively in the panel above.

Done deciding?

Open the full standalone spec sheet for either device.

Manufacturer pages: LG G3 OLED evo TV · LG B4 OLED TV

Common questions

Which is cheaper, the LG G3 or the LG B4?

LG B4 costs $900 less at list price.

What is the biggest catch with the LG G3 or LG B4?

Both has this deal-breaker: burn-in risk. Static news tickers, game HUDs and desktop use can leave permanent marks over the years.

Which is better for gaming, the LG G3 or the LG B4?

Too close to call on gaming from the spec sheets. Only input lag (4k 120, game mode) is rankable here. G-Sync / FreeSync: NVIDIA G-Sync Compatible, FreeSync vs NVIDIA G-Sync Compatible, AMD FreeSync Premium

What cannot be compared from spec sheets?

Of the 28 specs tracked here, 25 are descriptive and cannot be ranked on numbers alone. Spec sheets also cannot measure subjective factors like build quality, real-world performance, or comfort.

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