| Intuos4 | Small | Medium | Large | Extra Large | |
| Model Number | PTK-440 | PTK-640 | PTK-840 | PTK-1240 | PTK-540WL |
| Cordless, Battery-Free Pen Technology | Patented EMR
(Electro magnetic resonance) | Patented EMR
(Electro magnetic resonance) | Patented EMR
(Electro magnetic resonance) | Patented EMR
(Electro magnetic resonance) | Patented EMR
(Electro magnetic resonance) |
| Includes Grip Pen and Mouse | yes | yes | yes | yes | yes-pen
no-mouse, optional accessory |
| Interface | USB | USB | USB | USB | Bluetooth wireless
USB for charging |
| Wide Format | yes | yes | yes | yes | yes |
| Ambidextrous | yes | yes | yes | yes | yes |
Active Area
(W x D) | 6.2 x 3.9 in
157.5 x 98.4 mm | 8.8 x 5.5 in
223.5 x 139.7 mm | 12.8 x 8.0 in
325.1 x 203.2 mm | 19.2 x 12.0 in
487.7 x 304.8 mm | 8.0 x 5.0 in
203.2 x 127.0 mm |
Tablet Dimension
(W x D x H) | 12.2 x 8.2 x 0.5 in
309 x 208 x 12 mm | 14.6 x 10.0 x 0.5 in
370 x 254 x 12 mm | 18.7 x 12.6 x 0.6 in
474 x 320 x 14 mm | 24.5 x 18.2 x 1.1 in
623 x 462 x 28 mm | 14.3 x 10.0 x 0.6 in
363 x 253 x 15 mm |
| Tablet Weight | 1.54 lbs (0.7 kg) | 2.20 lbs (1.0 kg) | 3.96 lbs (1.8 kg) | 7.72 lbs (3.5 kg) | 2.20 lbs (1.0 kg) |
| Pressure Sensitivity Levels | 2048 | 2048 | 2048 | 2048 | 2048 |
| Tilt range (all pens) | ± 60 degrees | ± 60 degrees | ± 60 degrees | ± 60 degrees | ± 60 degrees |
| Resolution | 5080 lpi (lines per inch) | 5080 lpi (lines per inch) | 5080 lpi (lines per inch) | 5080 lpi (lines per inch) | 5080 lpi (lines per inch) |
| Maximum Report Rate | 197 pps
(points per second) | 197 pps
(points per second) | 197 pps
(points per second) | 197 pps
(points per second) | 197 pps
(points per second) |
| Pen Accuracy | ±0.01 in
(±0.25 mm) | ±0.01 in
(±0.25 mm) | ±0.01 in
(±0.25 mm) | ±0.01 in
(±0.25 mm) | ±0.01 in
(±0.25 mm) |
| ExpressKeys™ | 6 | 8 | 8 | 8 | 8 |
| ExpressKey Illuminated Displays | 0 | 8 | 8 | 8 | 8 |
| 4-Function Touch Ring | yes | yes | yes | yes | yes |