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LG B6 OLED 55-Inch 4K Smart TV vs LG B6 OLED 48-Inch 4K Smart TV

These are the same LG B6 OLED TV in two sizes, so the picture, processor, webOS and gaming features are identical. The real decision is room size and viewing distance: the 55-inch is the better pick for a main living room where seats sit roughly 7 to 9 feet back, while the 48-inch suits bedrooms, small apartments and desks where a bigger panel would crowd the wall. Owners of LG OLEDs consistently praise the deep blacks and wide viewing angles, and the main trade-offs are OLED's limited brightness in very sunny rooms and the risk of static-image burn-in with heavy news or game HUD use.

  • Choose the LG OLED55B6ELC if you have the wall or stand space and sit far enough back that a 55-inch fills your view without dominating the room.
  • Choose the LG OLED48B6ELC if your room is small, your seating is close, or you want OLED contrast in a bedroom or gaming nook where 55 inches would feel oversized.

Prices

  • LG B6 OLED 55-Inch 4K Smart TV: $366.00 at waxvinylcartel (last seen Nov 11)
  • LG B6 OLED 48-Inch 4K Smart TV: $445.00 at waxvinylcartel (last seen Nov 12)
  • Difference: the LG B6 OLED 55-Inch 4K Smart TV is $79.00 cheaper than the LG B6 OLED 48-Inch 4K Smart TV at the latest prices (Nov 11 and Nov 12)
LG
LG OLED55B6ELC 55 Inch OLED AI B6 4K Ultra HD HDR Smart TV 2026

LG B6 OLED 55-Inch 4K Smart TV

LG OLED55B6ELC 55 Inch OLED AI B6 4K Ultra HD HDR Smart TV 2026

$366.00at waxvinylcartelChecked Nov 11
See all prices and details
Visit waxvinylcartel
Pros
  • Bigger 55-inch canvas for movies and sport
  • Same OLED blacks and Dolby Vision as the 48-inch
  • 120Hz with VRR and Game Optimiser for consoles
  • Four HDMI 2.1 ports
  • α8 AI processor upscales everyday TV well
Cons
  • Needs a larger room to look right
  • Heavier at 14.3 kg, so plan the mount
  • OLED brightness is limited in very bright rooms
LG
LG OLED48B6ELC 48 Inch OLED AI B6 4K Ultra HD HDR Smart TV 2026

LG B6 OLED 48-Inch 4K Smart TV

LG OLED48B6ELC 48 Inch OLED AI B6 4K Ultra HD HDR Smart TV 2026

$445.00at waxvinylcartelChecked Nov 12
See all prices and details
Visit waxvinylcartel
Pros
  • Fits small rooms, bedrooms and apartments
  • Same OLED contrast and Dolby Vision as the 55-inch
  • 120Hz panel with low input lag for gaming
  • Built-in DVB-T2/C/S2 tuner covers Freeview HD, cable and satellite
  • Lighter and easier to wall-mount
Cons
  • 48 inches feels small from across a large room
  • Same OLED brightness limits as the 55-inch
  • Fewer USB ports than some rivals

What separates them

LG B6 OLED 55-Inch 4K Smart TVLG B6 OLED 48-Inch 4K Smart TV
Screen size55 inches48 inches
Best for viewing distanceAbout 7 to 9 feet backAbout 6 to 7 feet back
Panel and picture engineOLED, α8 AI Processor 4K Gen3, Dolby Vision, HDR10, HLGOLED, α8 AI processor, Dolby Vision, HDR10, HLG
Gaming120Hz native, VRR, Game Optimiser, HDMI 2.1120Hz native, low input lag, Game Optimiser
Smart platform and remotewebOS 26 with AI Magic RemotewebOS with AI Magic Remote
Connections4 HDMI, 1 USB, 300 x 200 VESA4 HDMI, USB, Bluetooth, Ethernet, Wi-Fi, CI+ slot
Weight14.3 kgLighter compact chassis
Built-in tuner detailStandard broadcast tunerDVB-T2/C/S2 for Freeview HD, cable and satellite

Price history

  • LG B6 OLED 48-Inch 4K Smart TV: lowest $599.99 on Nov 11 at Best Buy; $599.99 on Nov 13.

Prices at every store

LG B6 OLED 55-Inch 4K Smart TV

  • waxvinylcartelNew

    In stockShips from the UK · duties may applyReturn policy

    $366.00Checked Nov 11
    Visit waxvinylcartel
Prices and history →

LG B6 OLED 48-Inch 4K Smart TV

  • Best BuyNew

    In stock

    $599.99Free shippingChecked Nov 12
    Visit Best Buy
  • Enervee NYNew

    In stock

    $599.99Free shippingChecked Nov 12
    Visit Enervee NY
  • waxvinylcartelNew

    Availability unknownReturn policy

    $445.00Checked Nov 12
    Visit waxvinylcartel
  • WalmartNew

    Out of stockSold by Seller

    $999.99Free shippingChecked Nov 12
    Visit Walmart
All 6 stores and price history →

Specs compared

SpecLG B6 OLED 55-Inch 4K Smart TVLG B6 OLED 48-Inch 4K Smart TV
Screen size55 in48 Inches
Display technologyOLEDOLED
Resolution4K Ultra HD4K
Refresh rate120Hz Native (VRR 120Hz)120
Processorα8 AI Processor 4K Gen3—
Operating systemwebOS 26—
HDR supportDolby Vision, HDR10, HLG—
Audio output20W—
HDMI ports4—
USB ports1—
Weight14.3 kg—
VESA mount size300 x 200—
Show all 19 specsShow fewer specs
SpecLG B6 OLED 55-Inch 4K Smart TVLG B6 OLED 48-Inch 4K Smart TV
Aspect Ratio—16:9
Connectivity Technology—Bluetooth, Ethernet, HDMI, USB, Wi-Fi
Screen Resolution—3840 x 2160 (Ultra HD 4K)
HDMI Connections—4
Tuner Signal—DVB-C (cable), DVB-S2 (satellite), DVB-T2 (terr…
Interfaces—Bluetooth, CI+ slot, HDMI, RJ-45 (LAN), USB, WL…
Energy Efficiency Class—G

What reviewers say

LG B6 OLED 48-Inch 4K Smart TV

Owners of LG's B-series OLEDs consistently praise the contrast, black levels and gaming responsiveness for the size and tier. Common complaints are limited brightness in daylight rooms and the higher power draw of OLED.

What people mention
  • Picture contrastPraisedOwners say dark scenes and letterboxed films look deep and clean thanks to per-pixel OLED control.
  • BrightnessCriticisedReviewers note HDR highlights and daytime viewing are dimmer than on bright LED and mini-LED rivals.
  • GamingPraisedThe 120Hz panel and Game Optimiser are called responsive with low input lag for consoles.
  • SoundCriticisedBuilt-in speakers are described as thin, with a soundbar recommended for films.

Questions and answers

Which is better for a bright living room?
Neither is a brightness champion. Both use the same OLED panel type, so pick the size that fits the room and plan to control glare with blinds or curtains. If your room is very sunny, a bright LCD may suit you better than either.
Is the 55-inch worth stepping up to over the 48-inch?
Only if your seating distance supports it. At around 7 to 9 feet the 55-inch gives a more cinematic image. Closer than that, the 48-inch looks sharper and less overwhelming.
Which is better for gaming?
Both are strong. Each has a 120Hz native panel, Game Optimiser and low input lag, so console and PC gamers get the same responsiveness. Choose by room size, not by gaming features.
Do both have the same smart features?
Yes. Both run LG's webOS with the AI Magic Remote, voice control and AI picture and sound processing. The 48-inch listing spells out its DVB-T2/C/S2 tuner, which matters if you watch Freeview HD, cable or satellite.
Which lasts longer?
Expected lifespan is similar because the panel technology is the same. OLED pixels can dim unevenly with long static images, so vary content on either set. The larger 55-inch is heavier, so a sturdy mount matters more.
Can I wall-mount either one?
Yes. The 55-inch uses a 300 x 200 VESA pattern, and the 48-inch mounts on standard VESA brackets too. Check your bracket's weight rating, especially for the 14.3 kg 55-inch.

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