Hisense U8N 65" vs Vizio M-Series 55"
The Verdict
Hisense's U8N delivers flagship performance with Mini-LED backlighting, 3000-nits peak brightness, and 144Hz refresh rate, significantly outpacing Vizio's 800-nit Quantum LED panel. Gaming responsiveness favors Hisense with 7ms input lag versus 8ms, plus superior audio with 60W 2.1.2ch system including Dolby Atmos versus Vizio's basic 20W 2.0ch setup. Vizio's M-Series competes on value,the 55" costs $449 versus $1099 for a 65" display with comparable HDR standards and smart features. Both offer Google TV integration and Wi-Fi 6 connectivity. For picture quality and gaming, Hisense dominates; for budget-conscious buyers seeking 4K HDR in a compact form factor, Vizio justifies the investment. Choose Hisense for premium performance and larger screen real estate, or Vizio for budget-friendly 4K without compromise.
Who Should Buy
Buy the Hisense U8N 65" if…
- →144Hz panel at 3,000+ nits for under $1,100 — remarkable specs-per-dollar
- →Two HDMI 2.1 ports support 4K@144Hz for PC gaming and next-gen consoles
- →IMAX Enhanced certification alongside Dolby Vision for broad HDR ecosystem coverage
Buy the Vizio M-Series 55" if…
- →120Hz with VRR and 4K@120Hz at under $450 is great for console gamers
- →Dolby Vision and HDR10+ dual support
- →Four HDMI 2.1 ports — enough for every console and streaming device
Category Scores
Pros & Cons
Hisense U8N 65"
Pros
- 144Hz panel at 3,000+ nits for under $1,100 — remarkable specs-per-dollar
- Two HDMI 2.1 ports support 4K@144Hz for PC gaming and next-gen consoles
- IMAX Enhanced certification alongside Dolby Vision for broad HDR ecosystem coverage
- Wi-Fi 6 and 60W Dolby Atmos audio punch well above the price class
- Hi-View Engine X delivers accurate upscaling and natural motion processing
Cons
- Only two of the four HDMI ports are HDMI 2.1 — the other two are HDMI 2.0
- Mini-LED blooming artifacts are more visible than on premium Samsung or Sony panels
- Hisense's long-term software support and update cadence trails LG and Sony
- Local dimming can occasionally dim fine detail in dark HDR scenes
Vizio M-Series 55"
Pros
- 120Hz with VRR and 4K@120Hz at under $450 is great for console gamers
- Dolby Vision and HDR10+ dual support
- Four HDMI 2.1 ports — enough for every console and streaming device
- Wi-Fi 6 and Chromecast built-in for fast streaming
- Quantum color delivers better color volume than basic LED
Cons
- SmartCast OS is slow and has fewer apps than Google TV
- 800-nit brightness is adequate but not impressive for HDR
- No local dimming zones — contrast is limited
- Vizio's long-term software support and update track record is inconsistent
Full Specifications
| Spec | Hisense U8N 65" | Vizio M-Series 55" |
|---|---|---|
| Body | ||
| VESA mount | 400 x 300mm | 200 x 200mm |
| Weight | 64.4 lbs | 28.0 lbs |
| Dimensions (w/ stand) | 57.4 x 37.8 x 13.2 inches | 48.3 x 30.4 x 10.6 inches |
| Audio | ||
| Output (watts) | 60 | 20 |
| Speakers | 2.1.2ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 7 | 8 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10+, IMAX Enhanced | Dolby Vision, HDR10+, HLG |
| Size | 65" | 55" |
| Type | Mini-LED ULED | Quantum LED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K UHD) |
| Refresh rate | 144Hz | 120Hz (native) |
| Brightness (nits) | 3000 | 800 |
| Smart TV | ||
| Os | Google TV | SmartCast OS |
| Voice assistant | Google Assistant | Google Assistant, Apple AirPlay 2, Chromecast |
| Processor | ||
| Chipset | Hi-View Engine X | IQ Active Processor |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 6 (802.11ax) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 2 | 1 |
| HDMI ports | 4 | 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 Hisense products or all Vizio products. View full details for the Hisense U8N 65" or the Vizio M-Series 55".

