Vizio M7 Q-Series 55" vs Vizio OLED 55"
The Verdict
Both Vizio 55-inch models deliver 4K resolution and comprehensive HDR support, but their performance gaps justify the $500 price difference. Picture quality separates them decisively: the OLED features self-emissive pixels enabling perfect blacks, infinite contrast, and superior color accuracy, while the M7's Quantum Color LED reaches comparable peak brightness (600 nits) but lacks OLED's dimensional depth. Gaming performance favors the OLED with 120Hz refresh rate, VRR support, and 10ms input lag versus the M7's 60Hz, no VRR, and 12ms lag. Audio capabilities lean toward the OLED's 30W Dolby Atmos system over the M7's basic 20W setup. Smart TV features are identical across both models with Google Assistant and Alexa integration. Value considerations matter here: budget-conscious buyers benefit from the M7's respectable specifications at under $500, while serious gamers and cinema enthusiasts justify the OLED's premium for transformative picture quality and 120Hz gaming. For most consumers, the OLED represents better long-term satisfaction despite higher cost.
Who Should Buy
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
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
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
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 | Vizio M7 Q-Series 55" | Vizio OLED 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 300mm |
| Weight | 29.5 lbs | 33.5 lbs |
| Dimensions | 48.3 x 28.0 x 3.2 inches | 48.2 x 28.0 x 1.5 inches |
| Dimensions (w/ stand) | 48.3 x 30.2 x 9.6 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) | 12 | 10 |
| Display | ||
| HDR | Dolby Vision, HDR10+, HDR10, HLG | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 55" | 55" |
| Type | Quantum Color LED (VA LCD) | OLED |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 120Hz |
| Brightness (nits) | 600 | 600 |
| Smart TV | ||
| Os | SmartCast (Chromecast built-in) | SmartCast (Chromecast built-in) |
| Voice assistant | Google Assistant, Alexa | Google Assistant, Alexa |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 | 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.
Explore more in tvs, see all Vizio products or all Vizio products. View full details for the Vizio M7 Q-Series 55" or the Vizio OLED 55".

