LG B4 55" vs Samsung CU7000 50"
The Verdict
LG's B4 OLED represents a premium television experience with its exceptional 1100-nit OLED panel, Dolby Vision IQ support, and 120Hz refresh rate,ideal for both cinematic content and competitive gaming. Samsung's CU7000 LED delivers excellent value as a budget-friendly 4K option at $279, though its 250-nit brightness, 60Hz refresh rate, and 14ms input lag reveal significant compromises. Picture quality differences are stark: OLED's perfect blacks and infinite contrast vastly outclass LED's backlit approach. Gaming performance favors the LG with 1ms input lag, VRR support, and 120Hz capability versus Samsung's 14ms lag and 60Hz ceiling. Audio reaches 40W on LG versus 20W on Samsung. However, the CU7000 suits budget-conscious buyers seeking basic 4K without gaming ambitions. For serious enthusiasts and gamers, LG B4's technological superiority justifies its $920 premium.
Who Should Buy
Buy the LG B4 55" if…
- →Lowest-cost entry into LG's OLED lineup with the same perfect blacks
- →All four HDMI ports with VRR and ALLM at 4K@120Hz for gaming
- →Dolby Vision and Dolby Atmos at an entry OLED price
Buy the Samsung CU7000 50" if…
- →Under $280 for a 50-inch Samsung 4K TV is exceptional value
- →Tizen smart TV platform with all major streaming apps
- →HDR10+ support at this price point is uncommon
Category Scores
Pros & Cons
LG B4 55"
Pros
- Lowest-cost entry into LG's OLED lineup with the same perfect blacks
- All four HDMI ports with VRR and ALLM at 4K@120Hz for gaming
- Dolby Vision and Dolby Atmos at an entry OLED price
- webOS 24 is one of the best smart TV interfaces available
Cons
- Only two HDMI 2.1 ports — the other two are HDMI 2.0 (limited to 4K@60Hz)
- α8 processor is noticeably weaker than the C4's α9 for upscaling and processing
- Lower peak brightness than the C4 or G4 — HDR highlights lack some punch
- No Wi-Fi 6, which limits wireless bandwidth in crowded network environments
- OLED burn-in risk remains a concern for heavy static-content users
Samsung CU7000 50"
Pros
- Under $280 for a 50-inch Samsung 4K TV is exceptional value
- Tizen smart TV platform with all major streaming apps
- HDR10+ support at this price point is uncommon
- Light enough to mount with a basic bracket
- Simple setup with Samsung's guided setup wizard
Cons
- Very low brightness limits HDR performance significantly
- 60Hz panel — not suitable for gaming or fast-moving sports
- No VRR or HDMI 2.1 features
- Mediocre viewing angles — color shifts off-center
Full Specifications
| Spec | LG B4 55" | Samsung CU7000 50" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 200 x 200mm |
| Weight | 41.9 lbs | 22.9 lbs |
| Dimensions (w/ stand) | 48.4 x 32.1 x 10.5 inches | 44.3 x 28.1 x 8.2 inches |
| Audio | ||
| Output (watts) | 40 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 1 | 14 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode | HDR10+, HLG |
| Size | 55" | 50" |
| Type | OLED | Crystal UHD LED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K UHD) |
| Refresh rate | 120Hz | 60Hz |
| Brightness (nits) | 1100 | 250 |
| Smart TV | ||
| Os | webOS 24 | Tizen OS |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Bixby, Alexa |
| Processor | ||
| Chipset | α8 Gen 7 AI Processor 4K | Crystal Processor 4K |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.2 |
| USB ports | 3 | 1 |
| HDMI ports | 4 | 3 |
Related Comparisons
This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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