
NEC M551
Score: 76/100
Panasonic TH-65CQE1WA
Score: 72/100Rankings

The NEC MultiSync M551 is a 55-inch commercial-grade 4K UHD LED-backlit LCD display designed for digital signage and video-wall applications. It delivers high brightness, strong contrast, and HDR support while offering extensive remote-management features for 24/7 operation.

A 65-inch 4K commercial display with solid image quality and robust connectivity, ideal for digital signage but limited by modest brightness and lack of modern Wi-Fi.
| Attribute | ![]() | ![]() |
|---|---|---|
55 inches | 65 inchesbest | |
— | 8,294,400 pixelsbest | |
500 nitsbest | 400 nits | |
8,000best | 1,250 | |
| ↓ lower better | — | 7 msbest |
| ↓ lower better | 250 W | 201 Wbest |
— | 4 countbest | |
— | 4 countbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Display(5) | ||
Screen Size (inches) | 55 inches | 65 inches |
Resolution (total pixels) (pixels) | 3840x2160 pixels | 8294400 pixels |
Panel Type | IPS | VA |
Brightness (nits) | 500 nits | 400 nits |
Static Contrast Ratio | 8000 | 1250 |
Power & Energy(1) | ||
Typical Power Consumption (W) | 250 W | 201 W |



Professional AV integrators view the M551 as a reliable workhorse for digital signage and corporate environments, highlighting its high haze panel, local dimming, and extensive remote-management features. Reviewers commend its brightness consistency, color accuracy, and compatibility with embedded media platforms.
Everyday users appreciate the crisp 4K picture, easy system integration, and sturdy 24/7 operation, but many mention the steep learning curve for remote-control setup and wish for lower power consumption.

Professional reviewers consider the TH-65CQE1WA a solid mid-tier option that balances cost and capability, praising its USB-C connectivity and control protocol support while noting its lower brightness and lack of portrait mode.
Everyday users appreciate the ease of installation, reliable USB-C video, and the convenience of the built-in browser, but they commonly criticize the basic remote, outdated Wi-Fi, and occasional backlight uniformity issues.
“Sharp 4K image quality and vibrant colors”

“Easy integration into existing AV systems”

“Reliable performance in 24/7 kiosk and lobby applications”

