- opendesign.foundation
- Compare
- WH851 vs S640
GAOMON WH851 vs UGEE S640
What WH851 does better (2) and where S640 wins (1) — every spec side by side.
Dimensions
Size comparison
WH851S640
| WH851 | S640 | Difference | |
|---|---|---|---|
| Height | 171 mm | 162 mm | +9 mm |
| Width | 289 mm | 215 mm | +74 mm |
| Depth | 7.8 mm | 12 mm | −4.2 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is WH851 better than S640?
- Pressure levels16,384 vs 8,1922×
- Wireless connectionYes · S640: No
Why is S640 better than WH851?
- Express keys8 vs 10+25%
Specifications
Side by side
| Pen & controls | ||
| Pressure levels | 16,384 | 8,192 |
| Tilt recognition | ±60° | ±60° |
| Active area | 203 × 127 mm | — |
| Active area width | 203 mm | — |
| Active area height | 127 mm | — |
| Active area (surface) | 258 cm² | — |
| Pen resolution | 5,080 lpi | — |
| Report rate | 300 RPS | — |
| Pen accuracy (centre) | ±0.3 mm | — |
| Battery-free pen | Yes | Yes |
| Pen with eraser | — | Yes |
| Express keys | 8 | 10 |
| Multi-touch | No | No |
| Connectivity | ||
| Wireless connection | Yes | No |
| Bluetooth | Yes | — |
| Compatibility | Windows, macOS, Linux, Android, ChromeOS | Windows, macOS, Linux, Android, ChromeOS |
| Design & ergonomics | ||
| Weight | 0.39 kg | — |
| Width | 289 mm | 215 mm |
| Height | 171 mm | 162 mm |
| Depth | 8 mm | 12 mm |
