LG OLED B3 65" vs Vizio OLED 55"
The Verdict
Both deliver excellent OLED picture quality with 4K resolution and 120Hz refresh rates, but they serve different needs. LG's B3 provides a larger 65-inch screen with superior brightness at 600 nits and more responsive gaming at 7ms input lag versus Vizio's 10ms. LG also offers webOS 23 with dedicated LG ThinQ AI support and additional USB ports for convenience. Vizio's 55-inch model compensates with better audio (30W vs 20W), Wi-Fi 6 connectivity, and HDR10+ support while costing $300 less. For spacious living rooms and gaming-focused setups, the LG B3 justifies its premium through screen real estate and performance. Budget-conscious buyers wanting OLED quality in a compact package should choose Vizio. Overall, LG edges ahead for features and screen size, though Vizio offers genuinely solid value.
Who Should Buy
Buy the LG OLED B3 65" if…
- →Most affordable 65-inch LG OLED at $1,299 — great entry into OLED
- →Perfect blacks and infinite contrast inherent to OLED technology
- →Dolby Vision and Dolby Atmos for cinema-quality HDR experience
Buy the Vizio OLED 55" if…
- →Most affordable 55-inch OLED at $999 — perfect blacks at a budget price
- →Dolby Vision, HDR10+, and Dolby Atmos — supports all major formats
- →120Hz with VRR and ALLM — capable gaming display
Category Scores
Pros & Cons
LG OLED B3 65"
Pros
- Most affordable 65-inch LG OLED at $1,299 — great entry into OLED
- Perfect blacks and infinite contrast inherent to OLED technology
- Dolby Vision and Dolby Atmos for cinema-quality HDR experience
- 4x HDMI 2.1 ports with 4K@120Hz for gaming
- Wide viewing angles with no color shift
Cons
- Older α7 Gen6 processor — less effective upscaling than C3's α9
- 600 nits peak brightness is dim — struggles in bright rooms
- 20W speakers are weak — a soundbar is essential
- Wi-Fi 5 instead of Wi-Fi 6 on a 2023 model
Vizio OLED 55"
Pros
- Most affordable 55-inch OLED at $999 — perfect blacks at a budget price
- Dolby Vision, HDR10+, and Dolby Atmos — supports all major formats
- 120Hz with VRR and ALLM — capable gaming display
- Infinite contrast ratio with pixel-perfect black levels
- 4x HDMI ports including HDMI 2.1 for next-gen consoles
Cons
- SmartCast OS is the weakest smart TV platform — buggy and slow
- Only 600 nits peak brightness — dimmer than LG and Samsung OLEDs
- Vizio has exited the TV market — long-term software support uncertain
- Image processing quality trails LG, Sony, and Samsung OLED models
- Build quality feels inferior to similarly priced LG A2 OLED
Full Specifications
| Spec | LG OLED B3 65" | Vizio OLED 55" |
|---|---|---|
| Body | ||
| VESA mount | 300 x 200mm | 300 x 300mm |
| Weight | 41.7 lbs | 33.5 lbs |
| Dimensions | 57.0 x 32.8 x 1.8 inches | 48.2 x 28.0 x 1.5 inches |
| Dimensions (w/ stand) | 57.0 x 35.5 x 11.8 inches | 48.2 x 29.7 x 10.0 inches |
| Audio | ||
| Output (watts) | 20 | 30 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 7 | 10 |
| Display | ||
| HDR | Dolby Vision, HDR10, HLG | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 65" | 55" |
| Type | OLED (WOLED) | OLED |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 120Hz |
| Brightness (nits) | 600 | 600 |
| Smart TV | ||
| Os | webOS 23 | SmartCast (Chromecast built-in) |
| Voice assistant | LG ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6 |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 2 | 1 |
| HDMI ports | 4 | 4 |
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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