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LG
LG B4 Series OLED 4K Smart TV 48-inch

LG B4 Series OLED 4K Smart TV 48-inch

Last price we saw

48"See stores65"$1,099.00
$359.87at Walmart, last seen Nov 8

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Price facts

  • Last seen at $359.87 at Walmart on Nov 8.

Our take on the LG B4 Series OLED 4K Smart TV 48-inch

The LG B4 is LG's entry-level OLED, sold here in a 48-inch size. It uses a 120 Hz OLED panel with four HDMI 2.1 ports, so it handles 4K gaming at high frame rates and supports Dolby Vision and Dolby Atmos. Reviewers rate it as one of the best-value OLEDs for a bedroom, dorm or small living room, though its peak brightness and processing sit below the C4 and G4. It suits gamers and movie watchers who want true blacks without paying flagship money.

Best forSmall living rooms and bedroomsConsole gamers wanting 120 Hz and HDMI 2.1Movie fans who watch in dim roomsFirst-time OLED buyers
Pros
  • True OLED blacks and wide viewing angles
  • Four HDMI 2.1 ports at 120 Hz for consoles
  • Dolby Vision and Dolby Atmos support
  • webOS with all major streaming apps
  • Good value against the C4 and Samsung S90D
Cons
  • Dim compared with brighter OLED rivals in daylight rooms

LG B4 Series OLED 4K Smart TV 48-inch prices at every store

  • WalmartNew

    Out of stockSold by Seller

    $359.87Checked Nov 8
    Visit Walmart

LG B4 Series OLED 4K Smart TV 48-inch price history

Lowest price we've seen: $359.87 on Nov 8 at Walmart. Tracked across 1 store since Nov 8.

What reviewers say

Reviewers and owners call the B4 the best entry point into OLED, praising its contrast, gaming features and price against the C4. Complaints center on brightness in bright rooms and the step-down processor.

What people mention
  • Picture qualityPraisedOwners say blacks are deep and contrast is excellent, especially in dark rooms.
  • BrightnessCriticisedReviewers note it is dimmer than the C4 and struggles in bright, sunlit rooms.
  • GamingPraisedGamers like the 120 Hz panel, HDMI 2.1 ports and low input lag for consoles.

Questions and answers

Is the LG B4 worth it over the C4?
The B4 costs less and keeps OLED contrast, 120 Hz and HDMI 2.1. The C4 is brighter and has a better processor, so pick it if the room is bright or you watch a lot of lower-resolution content.
Is the B4 good for PS5 and Xbox Series X?
Yes. It supports 4K at 120 Hz, variable refresh rate and low input lag on its HDMI 2.1 ports, so consoles run at their high frame-rate modes.
How bright is the LG B4?
It is one of the dimmer OLEDs, fine for dim rooms but noticeably behind the C4 and G4 in daylight. Close the blinds for the best picture.
Does the B4 support Dolby Vision and Dolby Atmos?
Yes, both are supported, along with HDR10. Dolby Vision content from Netflix and other apps plays correctly.
What is in the box?
The TV, its stand, a magic remote and the power cable. You supply the HDMI cables and any wall mount.
Does the 48-inch B4 have four full HDMI 2.1 ports?
It has four HDMI ports, but check the spec sheet for your size: some B4 sizes limit full 2.1 bandwidth to two ports.

Stores we've priced the LG B4 Series OLED 4K Smart TV 48-inch at

  • Walmart deals and prices

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  • Only two of the four HDMI ports are full 2.1 bandwidth on some sizes
  • Weaker processor and upscaling than the C4
  • No anti-glare coating as effective as the G4
  • UpscalingMixed
    The processor handles 4K well but softens lower-resolution cable and streamed content.
  • SetupPraisedOwners find webOS quick to set up with apps like Netflix and Disney+ ready to go.
  • Specifications

    Resolution
    3840 x 2160
    CEC Enabled
    Yes
    High Definition
    Yes
    HDTV Format
    4K
    Color
    Black
    Screen Form
    Flat
    Display Type
    OLED
    Assistant Support
    Google Assistant, Amazon Alexa, Siri
    HDR
    Yes
    Refresh Rate
    120 Hz
    Connectivity
    Bluetooth, Wi-Fi, RF, USB, HDMI, Ethernet, Optical Audio
    Supported Streaming Services
    Netflix, Prime Video, YouTube, HBO, Disney+
    Width
    57.1 in wide
    Screen Size
    65 inches
    Depth
    1.8 in deep
    Weight
    37.7 lb
    HDMI Ports
    4 HDMI ports
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