
Samsung QB75R 75-inch
Score: 85/100
NEC M551
Score: 84/100Rankings

The Samsung QB75R is a 75-inch 4K commercial signage display with HDR10+ and a built-in Tizen media player, offering bright, vivid images for business environments. Its edge-lit panel and 60 Hz refresh limit motion handling, and audio power is modest. Best suited for retail, corporate lobbies, and conference rooms that need reliable 16/7 operation.

The NEC MultiSync M551 is a 55-inch IPS LED display featuring 4K UHD resolution, HDR support and 500 cd/m² brightness, complemented by modular compute slots and advanced sensors. While it lacks built-in speakers and has a higher power draw, it excels in image quality and flexibility for digital signage. Perfect for high-impact signage and video-wall installations.
| Attribute | ![]() | ![]() |
|---|---|---|
75 inchesbest | 55 inches | |
60 Hzbest | — | |
350 nits | 500 nitsbest | |
| ↓ lower better | 231 W | 110 Wbest |
| ↓ lower better | 8 msbest | 8 msbest |
4,000 | 8,000best | |
| ↓ lower better | 38.3 kg | 26.4 kgbest |
178 °best | 178 °best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Display(5) | ||
Screen Size (inches) | 75 inches | 55 inches |
Resolution | 3840x2160 | 3840 x 2160 |
Panel Type | Edge LED | IPS with Edge LED |
Brightness (nits) | 350 nits | 500 nits |
Static Contrast Ratio | 4000 | 8000 |
Power(2) | ||
Typical Power Consumption (W) | 231 W | 110 W |
Standby Power Consumption (W) | 0.5 W | 2 W |
Build & Design(4) | ||
Weight (with stand) (kg) | 38.3 kg | 26.4 kg |
Width (mm) | 1681 mm | 1239.6 mm |
Height (mm) | 960 mm | 713 mm |
Depth (mm) | 50 mm | 61.1 mm |


Products in the top-left offer the best value (high score, low price).

Professional reviewers and Samsung's own marketing stress the QB75R's vivid 4K imaging, robust commercial-grade reliability, and secure, PC-free operation. The edge-lit LED panel is praised for its slim profile and adequate contrast, while HDR10+ support adds dynamic range for bright environments.