LG UT70 50" vs Vizio M7 Q-Series 55"
The Verdict
LG's UT70 delivers solid 4K performance at an attractive $329 entry point, featuring webOS 24 with multiple voice assistants and 300 nits brightness suitable for darker rooms. Vizio's M7 Q-Series commands a $170 premium for its 55-inch panel and significantly superior picture quality,600 nits brightness is double the LG's, enabling better HDR performance and superior daytime viewing. Quantum Color technology plus Dolby Vision support gives the Vizio noticeably richer colors and contrast. Both handle gaming adequately with ALLM and low input lag (14ms vs 12ms), though neither supports VRR. Audio remains identical at 20W stereo. Connectivity slightly favors Vizio with Wi-Fi 6 versus LG's Wi-Fi 5. For budget-conscious buyers prioritizing value, the UT70 is compelling; for those wanting meaningfully better picture quality and an extra 5 inches, Vizio's M7 justifies its premium and represents the stronger all-around package.
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 M7 Q-Series 55" if…
- →Quantum color at $499 delivers vivid, wide gamut colors
- →Dolby Vision and HDR10+ dual support is rare at this price
- →Local dimming zones improve contrast over basic LED TVs
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 M7 Q-Series 55"
Pros
- Quantum color at $499 delivers vivid, wide gamut colors
- Dolby Vision and HDR10+ dual support is rare at this price
- Local dimming zones improve contrast over basic LED TVs
- Wi-Fi 6 for fast, reliable streaming
- Lightweight at 29.5 lbs for easy installation
Cons
- 60Hz panel — no 120Hz or VRR for gaming
- SmartCast OS is sluggish and frustrating to navigate
- Only 3 HDMI ports, no HDMI 2.1
- 20W speakers are thin and lacking bass
- 600 nits is modest — HDR highlights don't fully shine
Full Specifications
| Spec | LG UT70 50" | Vizio M7 Q-Series 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 200 x 200mm |
| Weight | 21.2 lbs | 29.5 lbs |
| Dimensions (w/ stand) | 44.1 x 28.2 x 8.3 inches | 48.3 x 30.2 x 9.6 inches |
| Dimensions | — | 48.3 x 28.0 x 3.2 inches |
| Audio | ||
| Output (watts) | 20 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 14 | 12 |
| Display | ||
| HDR | HDR10, HLG | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 50" | 55" |
| Type | LED | Quantum Color LED (VA LCD) |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 60Hz |
| 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 | 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.
Explore more in tvs, see all LG products or all Vizio products. View full details for the LG UT70 50" or the Vizio M7 Q-Series 55".