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




