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.
| Dahua DHI-PHRIA3.91-RE-V2 | Desay X3.9i | |
|---|---|---|
| Manufacturer | Dahua | Desay |
| Pixel pitch | 3.906 mm | 3.906 mm |
| Cabinet | 500 × 500 mm | 500 × 500 mm |
| Brightness | 1,000 nits | 1,500 nits |
| Refresh rate | 7,680 Hz | 3,840 Hz |
| Viewing angle | 160° / 160° | 160° / 140° |
| Pixels per cabinet | 128 × 128 | 128 × 128 |
| Pixels per m² | 65,536 | 65,536 |
| Weight | 7.5 kg (30 kg/m²) | 10 kg (40 kg/m²) |
| Max power | 128 W (512 W/m²) | 150 W (600 W/m²) |
| Typical power | 53 W | 53 W |
| Max hang | not published | not published |
| Dahua DHI-PHRIA3.91-RE-V2 | Desay X3.9i | |
|---|---|---|
| Wall built | 16 × 9, 8.00 × 4.50 m | 16 × 9, 8.00 × 4.50 m |
| Panels needed | 144 + 8 spare | 144 + 8 spare |
| Resolution | 2,048 × 1,152 px | 2,048 × 1,152 px |
| Weight incl. bumpers | 1,280 kg | 1,640 kg |
| Load per point | ~512 kg across 3 | ~656 kg across 3 |
| Power, full white | 18.4 kW | 21.6 kW |
| Circuits (16 A/230 V) | 8 | 8 |
| Data runs | 6 at ≤31/port | 6 at ≤31/port |
| Truck, linear | 5.8 m | 5.8 m |
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: 8.00 × 4.50 m and 8.00 × 4.50 m respectively.
Comparing something else, or your own OEM tile? The comparison tool takes any panels, up to four at once, at your wall size. Add your own spec once in the calculator and it appears there alongside the catalogue.
Open these two in the tool