LG Class B4 Series 48" 4K Ultra HDR Smart OLED WebOS TV
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Our take on the LG Class B4 Series 48" 4K Ultra HDR Smart OLED WebOS TV
The LG B4 is a 48-inch 4K OLED TV running webOS, with Dolby Atmos and four HDMI 2.1 ports. OLED gives it per-pixel contrast and near-instant response, so dark scenes and fast games look clean. It sits below LG's C4: the B4 uses a less bright panel and a slower processor, so it suits dimmer rooms and budget-minded buyers more than sunlit living rooms. Owners rate the picture and gaming features highly and often mention the modest brightness and the 48-inch size as the main limits.
- OLED panel with per-pixel contrast and true blacks
- Four HDMI 2.1 ports at 4K 120Hz for consoles
- Low input lag and support for VRR and ALLM
- Dolby Atmos and Dolby Vision support
- webOS with all major streaming apps built in
LG Class B4 Series 48" 4K Ultra HDR Smart OLED WebOS TV prices at every store
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What reviewers say
Reviewers and owners praise the B4's contrast, gaming features and webOS, and call it one of the better entry-level OLEDs. The recurring complaints are brightness in bright rooms and the step-down processor compared with the C4.
- BrightnessCriticisedOwners say it struggles in bright rooms and looks best with light controlled.
- ContrastPraisedReviewers highlight deep blacks and per-pixel contrast as the main draw.
- GamingPraisedFour HDMI 2.1 ports, VRR and low lag are called out as strong for consoles.
Questions and answers
- Is the LG B4 good for gaming?
- Yes. It has four HDMI 2.1 ports, supports 4K at 120Hz, VRR and ALLM, and has low input lag. It is a strong console TV for its class.
- How does the B4 compare with the LG C4?
- The C4 has a brighter panel and a faster processor, so it handles bright rooms and upscaling better. The B4 keeps the OLED contrast and gaming features at a lower tier.
- Is 48 inches big enough for a living room?
- It suits bedrooms, dens and smaller rooms. For a main living-room TV viewed from several feet away, most buyers go larger.
- Does it support Dolby Vision and Dolby Atmos?
- Yes. It supports Dolby Vision HDR and Dolby Atmos, and the built-in speakers handle Atmos decoding.
- Can OLED burn-in happen on this TV?
- OLED panels can retain static images over long periods. Vary content and avoid leaving logos or tickers on for hours; LG includes screen-shift and pixel-refresh features to reduce the risk.
- What is in the box?
- The TV, its stand, a remote and the power cable. You supply the HDMI cables and any wall mount.
