LG B4 OLED review roundup: The honest buying verdict
Product image · Source
What Hi-Fi? says it "looks like all the OLED TV that most people will ever need."
What reviewers loved
- OLED black levels and pixel-level contrast give movies and games rich, high-impact images.
- Four HDMI 2.1 ports support 4K/120Hz, VRR and ALLM, making the B4 unusually flexible for multi-console setups.
- Tom's Guide reports a low 9.7ms input latency, while TechRadar gives its gaming performance 5/5.
- Reviewers praise its vibrant colors, strong motion processing and detailed picture.
- webOS 24 has a streamlined interface and useful Quick Cards for organizing apps.
What held it back
- Brightness is limited compared with the step-up LG C4, which matters most in brighter rooms and for HDR impact.
- Built-in sound lacks bass and spaciousness, so a soundbar is a sensible addition.
- Tom's Guide found the screen reflective, despite TechRadar noting an anti-reflection treatment.
- There is no HDR10+ support or ATSC 3.0 tuner.
LG B4 OLED key specs
| Panel | OLED |
|---|---|
| Refresh rate | 120Hz |
| HDMI | Four HDMI 2.1 ports |
| Gaming support | 4K/120Hz, VRR, ALLM and Dolby Vision gaming |
| HDR formats | Dolby Vision supported; no HDR10+ |
| Smart platform | webOS 24 |
The short version
Critics report that the LG B4 delivers the deep blacks, vibrant color and gaming features people want from an OLED without moving up to LG's more expensive models. Four HDMI 2.1 ports and a 120Hz panel make it especially appealing for console gaming. The honest trade-off is brightness and sound: the C4 is brighter, while the B4's speakers are consistently described as middling.
What reviewers say about the LG B4 OLED
TechRadar calls the B4 a high-value entry-level OLED and praises its very good picture, streamlined webOS 24 interface and feature-packed gaming support. Its biggest reservations are limited brightness and merely passable sound, with the brighter C4 complicating the value argument when prices are close.
Tom's Guide similarly highlights deep blacks, brilliant colors, motion processing and four HDMI 2.1 ports. What Hi-Fi?'s early hands-on found the B4 close to the C4 in color, detail and OLED contrast, but stressed that its session was brief and used LG demo material. RTINGS also publishes an independent review and a dedicated settings guide.
Best settings for the LG B4 OLED
the cited reviews do not contain RTINGS' exact calibration values, so we will not invent them. Use the published RTINGS guide for model-specific recommendations.
For a full walkthrough, see our Apple TV 4K on an LG OLED: best settings setup guide.
Buy it if you want affordable OLED picture quality and four full-featured HDMI 2.1 connections for gaming.
Skip it if you need stronger brightness for a sunny room, better built-in audio or HDR10+ support.
Also consider
LG C4 OLED
The step-up option offers a substantial brightness advantage. The B4 remains the better-value choice when the price gap is large.
LG G5 OLED
LG's flagship OLED is substantially brighter and better for wall mounting, but costs significantly more.
Hisense U8N
A mini-LED alternative with extreme brightness for bright rooms at a lower price, but without OLED's pixel-level contrast.
Should you buy the LG B4 OLED?
Yes, if value and gaming matter more than maximum brightness. Across the cited reviews, critics agree that the LG B4 preserves OLED's core strengths while adding four HDMI 2.1 ports and strong 120Hz gaming support. The weak speakers are easy to fix with a soundbar, but the brightness ceiling is permanent, so compare its price with the brighter LG C4 before buying.
See our best TVs picks.
How we build this review
We read 4 professional reviews from TechRadar, Tom's Guide, What Hi-Fi?, RTINGS. We don’t test units ourselves — we distill what critics agree on. Every claim is cited.
Sources
RightWei aggregates and summarizes independent reviews — we link to the original hands-on tests so you can go deeper. We don’t test units ourselves.
Re-checked July 2026
