LG UR8000 55" (UHD) vs Vizio M7 Q-Series 55"
The Verdict
LG's UR8000 delivers solid 4K performance at an attractive $399 price point, featuring a clean webOS 23 interface and adequate brightness for casual viewing. Vizio's M7 Q-Series steps up significantly with double the peak brightness (600 nits vs 300 nits), superior HDR support including Dolby Vision, and faster input lag (12ms vs 15ms) for gaming. The M7's Quantum Color LED panel provides noticeably better contrast and color vibrancy compared to the UR8000's IPS LCD. Both offer identical audio (20W, 2.0ch) and connectivity options, though Vizio includes Wi-Fi 6 versus the LG's Wi-Fi 5. For a $100 premium, the M7 Q-Series provides meaningfully better picture quality, superior gaming responsiveness, and more comprehensive HDR capabilities. Budget-conscious buyers should consider the LG, but anyone prioritizing display performance and future-proofing should choose the Vizio M7.
Who Should Buy
Buy the LG UR8000 55" (UHD) if…
- →Affordable 55-inch 4K at $399 for budget-conscious buyers
- →webOS 23 smart TV platform with all major streaming apps
- →IPS panel offers wide viewing angles for family rooms
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 UR8000 55" (UHD)
Pros
- Affordable 55-inch 4K at $399 for budget-conscious buyers
- webOS 23 smart TV platform with all major streaming apps
- IPS panel offers wide viewing angles for family rooms
- LG ThinQ AI and Alexa voice control built in
- Lightweight at 27.1 lbs — straightforward wall mount installation
Cons
- IPS LCD has poor contrast — blacks appear grey in dark rooms
- 300 nits brightness is very dim — HDR is essentially non-functional
- 60Hz with no VRR — not suitable for gaming
- 20W audio is tinny — external speakers needed
- No Dolby Vision, Dolby Atmos, or HDMI 2.1
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 UR8000 55" (UHD) | Vizio M7 Q-Series 55" |
|---|---|---|
| Body | ||
| VESA mount | 300 x 300mm | 200 x 200mm |
| Weight | 27.1 lbs | 29.5 lbs |
| Dimensions | 48.7 x 28.3 x 3.4 inches | 48.3 x 28.0 x 3.2 inches |
| Dimensions (w/ stand) | 48.7 x 30.4 x 8.4 inches | 48.3 x 30.2 x 9.6 inches |
| Audio | ||
| Output (watts) | 20 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 15 | 12 |
| Display | ||
| HDR | HDR10, HLG | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 55" | 55" |
| Type | IPS LCD | Quantum Color LED (VA LCD) |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 60Hz |
| Brightness (nits) | 300 | 600 |
| Smart TV | ||
| Os | webOS 23 | SmartCast (Chromecast built-in) |
| Voice assistant | LG ThinQ AI, Alexa | Google Assistant, Alexa |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 | 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 UR8000 55" (UHD) or the Vizio M7 Q-Series 55".