The 2019 Vizio M-Series Quantum is the successor to the Vizio M-Series lineup, which are considered to be good budget home theater TVs. The 2019 M-Series Quantum introduces noticeable image quality and feature set improvements over its predecessors from 2018 and 2017.
The 2019 Vizio M-Series Quantum is a great mid-range TV and an excellent option for those who don't want to break the bank. However, it isn't without its drawbacks. It has poor viewing angles and struggles with uniformity issues in cases where it displays large, homogeneous objects like sports fields. It works best as a home theater TV because of its balanced image quality - it does an amazing job of displaying highly uniform blacks that, due to the TV's high contrast, manage to look deep and inky even when situated right next to bright colors and highlights. The colors themselves are amazing, thanks to the TV's high brightness levels and good color accuracy.
The Vizio M-Series Quantum is also a relatively good option for gaming since it offers adequately low input lag and high overall responsiveness. However, it's not compatible with the latest adaptive sync technologies. At this price point, you can get a better TV for watching sports since the overall uniformity of the Vizio M-Series Quantum isn't particularly good.
The 2019 Vizio M-Series Quantum TVs are available in two configurations. The M8 models are the M558-G1 and M658-G1, and the M7s are the M437-G0, M507-G1, M557-G0, and M657-G0. While the M7 and M8 variants offer identical feature sets, the M8 has superior image quality, particularly when displaying darker scenes where its higher number of local dimming zones makes a noticeable difference and allows the M8 TVs to produce deeper and more uniform blacks than the M7. The M8 models are usually slightly more expensive than the M7 ones, but they're worth the extra investment for most users.
The 2019 Vizio M-Series Quantum is capable of HDR playback and supports all main HDR formats of 2019 - HDR10, HDR10+, Dolby Vision, and HLG. For its price, the M-Series Quantum offers great HDR image quality, thanks to its ability to display rich scenes that contain both deep blacks and vivid highlights. However, higher-end TVs like Vizio's P-Series Quantum and P-Series Quantum X do an even better job, thanks to their higher overall brightness.
The TV runs on a relatively simple and user-friendly OS - SmartCast. It offers a clean, ad-free user interface that unfortunately lacks an app store, which limits the TV's functionality. It comes with a simple, stylish remote that lacks any noteworthy smart features.