LG QNED80 55" vs Vizio OLED 55"
The Verdict
LG's QNED80 delivers impressive quantum dot technology with 700-nit peak brightness and comprehensive HDR support at a compelling $699 price point, making it excellent for well-lit rooms. Vizio's OLED 55" commands premium positioning with superior contrast, perfect blacks, and Dolby Atmos audio despite lower 600-nit brightness,ideal for dark viewing environments. Both handle gaming identically with 10ms input lag and 120Hz refresh rates. LG edges ahead in brightness and processor power, while Vizio excels in picture depth and audio quality. For most buyers seeking value-driven 4K performance with vibrant colors, the LG QNED80 offers stronger overall appeal. However, if contrast and cinematic black levels justify the $300 premium, Vizio warrants consideration. Recommend the LG QNED80 for its superior brightness, competitive gaming credentials, and exceptional value proposition.
Who Should Buy
Buy the LG QNED80 55" if…
- →120Hz native panel with VRR at a mid-range price
- →Dolby Vision support for superior HDR compared to HDR10+ only TVs
- →webOS 24 is one of the best smart TV platforms available
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 QNED80 55"
Pros
- 120Hz native panel with VRR at a mid-range price
- Dolby Vision support for superior HDR compared to HDR10+ only TVs
- webOS 24 is one of the best smart TV platforms available
- Four HDMI ports with ALLM for multi-device setups
- Quantum Dot + NanoCell technology improves color accuracy
Cons
- Not OLED — contrast and black levels are significantly behind
- 700-nit brightness is modest for HDR highlights
- 20W speakers are underwhelming — needs a soundbar
- Edge-lit LED can show uneven backlighting in dark scenes
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 QNED80 55" | Vizio OLED 55" |
|---|---|---|
| Body | ||
| VESA mount | 300 x 300mm | 300 x 300mm |
| Weight | 28.4 lbs | 33.5 lbs |
| Dimensions (w/ stand) | 48.5 x 30.7 x 9.3 inches | 48.2 x 29.7 x 10.0 inches |
| Dimensions | — | 48.2 x 28.0 x 1.5 inches |
| Audio | ||
| Output (watts) | 20 | 30 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 10 | 10 |
| Display | ||
| HDR | HDR10, HLG, Dolby Vision | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 55" | 55" |
| Type | QNED (Quantum Dot NanoCell) | OLED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz (native) | 120Hz |
| Brightness (nits) | 700 | 600 |
| Smart TV | ||
| Os | webOS 24 | SmartCast (Chromecast built-in) |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa |
| Processor | ||
| Chipset | α8 AI Processor 4K | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 6 |
| Ethernet | ||
| Bluetooth | 5.1 | 5.0 |
| USB ports | 2 | 1 |
| HDMI ports | 4 | 4 |
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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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