  |  |  |  | |
| Editiorial reviews | ||||
| User rating |
| Touchscreen | no | yes | yes | yes |
|---|---|---|---|---|
| Colour | N | N | N | Y |
| Screen size | 6.0 in | 6.0 in | 6.0 in | 6.0 in |
| Screen technology | E Ink | E Ink Carta | E Ink | E Ink Carta |
| Screen resolution | 800 x 600 px | 800 x 600 px | 1024 x 758 px | 1072 x 1448 px |
| Aspect ratio | 4:3 | 4:3 | N/A | N/A |
| Shades of grey | N/A | 16 | 16 | 16 |
| Book capacity | 2800 | 2000 | 2000 | N/A |
|---|---|---|---|---|
| Supported book file formats |
|
|
|
|
| Supported image formats |
| N/A | N/A | N/A |
| Supported video formats | Not supported | Not supported | Not supported | Not supported |
| Memory size | 4GB | 4GB | 2GB | 8GB |
| Memory card reader | yes | no | N/A | N/A |
| Compatible memory cards |
| Not supported |
| N/A |
| Maximum memory card size | 32 | N/A | 32 | 25 |
| Built-in memory | N/A | yes | N/A | N/A |
| Built-in processor | N/A | Y | Y | Y |
| Processor speed | N/A | 1000.0 MHz | 800.0 MHz | 1000.0 MHz |
| RAM size | N/A | 512.0 mB | 256.0 mB | 512.0 mB |
| Height | 0.31 in | 6.89 in | 6.89 in | 6.16 in |
|---|---|---|---|---|
| Width | 4.61 in | 4.57 in | 4.57 in | 4.34 in |
| Depth | 6.65 in | 0.38 in | 0.36 in | 0.33 in |
| Weight | 5.57 oz | 6.0 oz | 6.46 oz | 5.86 oz |
| Wi-Fi | no | yes | yes | no |
|---|---|---|---|---|
| Headphone out | yes | N/A | no | no |
| Bluetooth | no | no | no | no |
| USB | yes | yes | N/A | N/A |
| USB version | USB 2.0 | USB 2.0 | USB 2.0 | N/A |
| USB type | Mini-USB | Micro-USB B | Micro-USB A | Micro-USB |
| Wi-Fi standards | N/A |
|
| N/A |
| 3G (UMTS) | N/A | no | N/A | N/A |
| AC adapter included | N/A | no | N/A | N/A |
| Total USB ports | N/A | 1 | N/A | N/A |
| USB powered (only mha USB) | N/A | yes | N/A | N/A |
| Battery capacity | 1500.0 mAh | 1000.0 mAh | 1500.0 mAh | 1200.0 mAh |
|---|---|---|---|---|
| Battery type | Lithium-Ion | Lithium Polymer | Lithium Polymer | Lithium Polymer |
| Battery life | 720.0 h | N/A | 1176.0 h | N/A |
| Rechargeable battery (enclosed/integrate) | N/A | yes | N/A | N/A |
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