  |  |  |  | |
| Editiorial reviews | ||||
| User rating |
| Touchscreen | yes | yes | yes | yes |
|---|---|---|---|---|
| Colour | N | N | N | Y |
| Screen size | 7.8 in | 6.0 in | 7.8 in | 6.0 in |
| Screen technology | E Ink Carta | E Ink Carta | E Ink Carta | E Ink Carta |
| Screen resolution | 1872 x 1404 px | 1072 x 1448 px | 1872 x 1404 px | 1072 x 1448 px |
| Shades of grey | 16 | 16 | N/A | 16 |
| Supported book file formats |
|
|
|
|
|---|---|---|---|---|
| Supported image formats |
|
| N/A | N/A |
| Supported video formats | Not supported | N/A | Not supported | Not supported |
| Memory size | 8GB | 8GB | 8GB | 8GB |
| Memory card reader | yes | N/A | N/A | N/A |
| Compatible memory cards |
| microSD | Not supported | N/A |
| Maximum memory card size | 32 | 32 | N/A | 25 |
| Built-in processor | Y | Y | Y | Y |
| Processor speed | 1000.0 MHz | 1000.0 MHz | 1.0 MHz | 1000.0 MHz |
| RAM size | 1000.0 mB | 512.0 mB | 512.0 mB | 512.0 mB |
| Book capacity | N/A | N/A | 6 | N/A |
| Height | 7.68 in | 6.89 in | 0.32 in | 6.16 in |
|---|---|---|---|---|
| Width | 5.37 in | 4.47 in | 5.51 in | 4.34 in |
| Depth | 0.31 in | 0.35 in | 8.23 in | 0.33 in |
| Weight | 7.41 oz | 6.35 oz | 9.17 oz | 5.86 oz |
| Speakers | no | no | no | N/A |
|---|---|---|---|---|
| Supported audio formats | MP3 | MP3 | Not supported | Not supported |
| Wi-Fi | yes | yes | yes | no |
|---|---|---|---|---|
| Wi-Fi standards |
|
|
| N/A |
| 3G (UMTS) | no | N/A | N/A | N/A |
| Headphone out | yes | yes | no | no |
| Bluetooth | no | no | no | no |
| USB | yes | N/A | yes | N/A |
| USB version | USB 3.0 | N/A | N/A | N/A |
| USB type | Micro-USB | Micro-USB | Micro-USB | Micro-USB |
| Battery capacity | 1900.0 mAh | 1500.0 mAh | 1200.0 mAh | 1200.0 mAh |
|---|---|---|---|---|
| Battery type | Lithium Polymer | Lithium Polymer | Lithium Polymer | Lithium Polymer |
| Battery life | 730.5 h | 730.0 h | 672.0 h | N/A |
| Rechargeable battery (enclosed/integrate) | yes | N/A | N/A | N/A |
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