LG B4 4K OLED TV vs LG C3 48" OLED TV
Both are 4K OLED sets with 120Hz panels, Dolby Vision and four HDMI 2.1 ports, so the picture fundamentals are close. The C3 is the step-up line: its α9 processor, brighter panel and DTS:X support give it the edge on HDR punch and sound, and owners consistently rate the C-series above the B-series. The B4 is the better pick if you want a larger screen size for the same tier of picture, while the C3 suits a buyer who wants the best 48-inch image LG makes and does not need a bigger panel.
- Choose the LG B4 if you want a big-screen OLED at the entry tier and can live with the α8 processor and 2.0-channel 20W audio.
- Choose the LG OLED48C3PUA if you are set on a 48-inch set and want the brighter C-series panel, the α9 processor and DTS:X support.
Prices
- LG B4 4K OLED TV: $899.00 used at Beachcamera (checked today)
LG B4 4K OLED TV
LG B4 4K OLED Smart TV
What separates them
| LG B4 4K OLED TV | LG C3 48" OLED TV | |
|---|---|---|
| Picture processor | α8 AI Processor 4K | α9 AI Processor (C3 generation) |
| Peak brightness | Dimber B-series panel | Brighter C-series panel, better HDR highlights |
| Screen sizes | 48, 55, 65, 77 and 83 inches | 48 inches only in this model |
| Audio | 20W, 2.0 channel, Dolby Atmos decoding | Dolby Atmos and DTS:X support, richer built-in sound |
| HDMI | 4x HDMI 2.1 with 4K 120Hz, VRR, ALLM, eARC | HDMI 2.1 with VRR and eARC |
| Smart platform | webOS 24 with Google Assistant, Alexa and Siri | webOS with Apple HomeKit and Alexa |
| Wireless | Wi-Fi 5, Bluetooth 5.1 | Wi-Fi 5, Bluetooth, WiSA wireless audio |
Price history
- LG B4 4K OLED TV: lowest $837.00 on Nov 13 at Walmart.
- LG C3 48" OLED TV: lowest $854.14 on Nov 9.
Prices at every store
LG B4 4K OLED TV
- BeachcameraOpen box
In stock
$899.00Checked 13 h ago - WalmartNew
Out of stock
$837.00Checked 13 h ago - BuyDig.comOpen box
Out of stock
$899.00Checked 18 h ago
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Specs compared
| Spec | LG B4 4K OLED TV | LG C3 48" OLED TV |
|---|---|---|
| HDR | Dolby Vision / HDR10 / HLG | Yes |
| Wi-Fi | Yes (Wi-Fi 5) | Yes |
| Color | Black, Gray, Brown | Black |
| Display Type | 4K OLED | — |
| Display Resolution | 4K Ultra HD (3,840 x 2,160) | — |
| Refresh Rate | 120Hz Native | — |
| Picture Processor | α8 AI Processor 4K | — |
| Audio Output | 20W | — |
| Speaker System | 2.0 channel | — |
| Dimensions without Stand | 1719 x 989 x 50.9 | — |
What reviewers say
LG B4 4K OLED TV
- 4.7 / 52,000 ratings
Owners and reviewers treat the B4 as the value pick in LG's OLED line. They praise the picture, gaming features and price-to-performance, and note it is dimmer and less polished in processing than the C4.
- BrightnessMixedReviewers say it is bright enough for dark rooms but trails the C4 in highlights and daylight viewing.
- Picture qualityPraisedOwners highlight deep blacks, strong contrast and accurate colors out of the box.
Questions and answers
- Which is better for gaming?
- Both give you 120Hz OLED motion, VRR and ALLM, and the B4 lists four HDMI 2.1 ports. The C3's brighter panel and α9 processing make HDR games pop more, so it edges ahead if you play in a lit room.
- Is the C3 worth stepping up to over the B4?
- If you are buying 48 inches, yes: the C3 adds a brighter panel, the α9 processor and DTS:X. If you want 65 inches or more, the B4 is the only option of the two at those sizes.
- Which has better sound without a soundbar?
- The C3. It supports DTS:X as well as Dolby Atmos and has the more capable audio system. The B4's 20W 2.0-channel setup is serviceable but thin for movies.
- Do both support Dolby Vision?
- Yes. Both handle Dolby Vision, HDR10 and HLG, and both run webOS with the major streaming apps.
- Which lasts longer?
- Both use OLED panels with similar lifespans and both carry LG's panel warranty terms. Neither has a durability advantage; the C3's brighter panel runs harder at peak, but that is not a known failure point.
- Can I wall-mount either one?
- Yes. Both are flat and VESA-mountable, and both are about 1.8 inches deep without their stands, so either sits close to the wall.
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