Dahua DHI-PHSIA3-SC vs Desay X3.1

3.077 mm against 3.125 mm · specifications from both manufacturers' datasheets

Side-by-side specifications, then the same wall built from each tile, so the comparison is in panels, kilograms, circuits and data runs rather than in marketing copy.

Whole cabinets rarely hit an identical size, so each wall is the closest build to a real video format (16:9 or 16:10) near 8 m wide for that tile: 7.68 × 4.32 m and 8.00 × 4.50 m respectively.

What the numbers say

• Dahua DHI-PHSIA3-SC resolves finer: 105,625 pixels per square metre against 102,400 for Desay X3.1, 3% more. On a 8 m wide wall that is 2,496 px across versus 2,560 px.
• Dahua DHI-PHSIA3-SC is the lighter rig: 21 kg/m² against 42 kg/m². Across this wall that is 860 kg of difference, 852 kg versus 1,712 kg, which moves point loads and can change the hoist call.
• Desay X3.1 draws more: 760 W/m² against 400 W/m² at full white. For this wall that is 13.3 kW versus 27.4 kW, and 6 versus 16 circuits at a 16 A/230 V supply with an 80% derate.
• Data is lighter on Desay X3.1: 8 runs against 12, at 16 and 20 panels per port respectively (60 Hz, 8-bit, ports loaded to 80%). Fewer runs means fewer home runs to pull and fewer processor ports to find.
• Different cabinet formats: 640 × 480 mm against 500 × 500 mm, so 108 tiles versus 144 for the same wall. Fewer, larger cabinets build faster; smaller ones give finer control over wall dimensions and are easier to handle alone.

Full specifications

• Dahua DHI-PHSIA3-SC: specs and calculator
• Desay X3.1: specs and calculator
• All Dahua panels
• All Desay panels

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