LG UT70 50" vs Vizio OLED 55"
The Verdict
LG's UT70 offers exceptional value for budget-conscious buyers seeking a 50-inch 4K television, delivering solid performance with a capable α5 AI processor and ALLM support for gaming. However, Vizio's 55-inch OLED model operates in a different league entirely,its self-emissive OLED panel produces superior contrast, deeper blacks, and superior color accuracy with 600 nits peak brightness versus the LG's 300 nits. Gaming enthusiasts will appreciate the Vizio's 120Hz refresh rate, 4ms lower input lag, and VRR support, alongside its more robust 30-watt audio system with Dolby Atmos. Connectivity advantages include Wi-Fi 6 and an additional HDMI port on the Vizio. At three times the price, the Vizio OLED justifies its premium through dramatically better picture quality and gaming capabilities. For movie and console gaming enthusiasts willing to invest, Vizio's OLED is the clear choice. Budget shoppers should choose LG's UT70.
Who Should Buy
Buy the LG UT70 50" if…
- →webOS 24 smart TV platform at budget pricing — best-in-class software for the price
- →AI-assisted upscaling from the α5 processor improves SD/HD content
- →Magic Remote with point-and-click navigation included
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 UT70 50"
Pros
- webOS 24 smart TV platform at budget pricing — best-in-class software for the price
- AI-assisted upscaling from the α5 processor improves SD/HD content
- Magic Remote with point-and-click navigation included
- Lightweight and easy to mount at 21 lbs
- Supports Alexa, Google Assistant, and Apple AirPlay 2
Cons
- 60Hz panel — no 120Hz or VRR for gaming
- Low brightness limits HDR impact
- No Dolby Vision — only basic HDR10
- Narrow viewing angles typical of budget VA panels
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 UT70 50" | Vizio OLED 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 300mm |
| Weight | 21.2 lbs | 33.5 lbs |
| Dimensions (w/ stand) | 44.1 x 28.2 x 8.3 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) | 14 | 10 |
| Display | ||
| HDR | HDR10, HLG | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 50" | 55" |
| Type | LED | OLED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 120Hz |
| Brightness (nits) | 300 | 600 |
| Smart TV | ||
| Os | webOS 24 | SmartCast (Chromecast built-in) |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa |
| Processor | ||
| Chipset | α5 AI Processor 4K Gen 7 | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 6 |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 1 | 1 |
| HDMI ports | 3 | 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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