  |  |  |  | |
| Editiorial reviews | ||||
| User rating |
| Touchscreen | yes | yes | yes | yes |
|---|---|---|---|---|
| Colour | N | N/A | N | N |
| Screen size | 6.0 in | 6.0 in | 6.8 in | 6.0 in |
| Screen technology | E Ink Pearl | N/A | E Ink Carta | N/A |
| Screen resolution | 1014 x 758 px | 1024 x 768 px | 1430 x 1080 px | 1448 x 1072 px |
| Shades of grey | 16 | N/A | 16 | 16 |
| Aspect ratio | 16:9 | N/A | 4:3 | N/A |
| DPI | 211.0 dpi | 212.0 dpi | 265.0 dpi | 300.0 dpi |
| Pixel density | N/A | N/A | 265.0 ppi | 300.0 ppi |
| Book capacity | 3000 | N/A | 3000 | 3000 |
|---|---|---|---|---|
| Supported book file formats |
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| Supported image formats |
|
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|
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| Built-in memory | yes | yes | yes | yes |
| Memory size | 4GB | N/A | 4GB |
|
| Memory card reader | yes | no | yes | no |
| Compatible memory cards |
| N/A |
| Not supported |
| Maximum memory card size | 32 | N/A | 32 | N/A |
| Built-in processor | Y | N/A | Y | N/A |
| Processor speed | 1000.0 MHz | N/A | 1000.0 MHz | 1000.0 MHz |
| RAM size | 256.0 mB | N/A | 512.0 mB | N/A |
| Supported video formats | N/A | N/A | Not supported | Not supported |
| Height | 5.91 in | 6.26 in | 0.38 in | 6.18 in |
|---|---|---|---|---|
| Width | 4.49 in | 4.45 in | 7.05 in | 4.53 in |
| Depth | 0.32 in | 0.33 in | 5.08 in | 0.35 in |
| Weight | 6.14 oz | 6.35 oz | 8.22 oz | 6.35 oz |
| Speakers | no | no | no | no |
|---|---|---|---|---|
| Audio 3.5mm input | no | no | no | no |
| Supported audio formats | N/A | N/A | Not supported | BMP |
| Menu languages |
| N/A | N/A |
|
|---|---|---|---|---|
| Operating system | Proprietary OS | Proprietary OS | Proprietary OS | Proprietary OS |
| Input method | Multi-touch | N/A | Multi-touch | Multi-touch |
| Qwerty keyboard (buttons) | no | no | no | no |
| Qwerty keyboard (screen) | yes | yes | yes | yes |
| Adjustable text | yes | N/A | yes | yes |
| Built-In dictionary | yes | N/A | yes | yes |
| Lighting | yes | yes | yes | yes |
| Web browsing | yes | N/A | yes | N/A |
| Digital library access | N/A | N/A | yes | yes |
| Word translation | N/A | N/A | yes | N/A |
| Wi-Fi | yes | yes | yes | yes |
|---|---|---|---|---|
| Wi-Fi standards |
| N/A |
|
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| 3G (UMTS) | no | no | no | no |
| AC adapter included | yes | yes | no | no |
| Headphone out | no | N/A | N/A | N/A |
| Bluetooth | no | N/A | no | no |
| USB | yes | yes | yes | yes |
| USB version | USB 2.0 | N/A | USB 2.0 | N/A |
| USB type | Micro-USB B | N/A | Mini-USB B | Micro-USB |
| Total USB ports | 1 | N/A | 1 | 1 |
| USB powered (only mha USB) | yes | N/A | yes | yes |
| Battery type | Li-Ion | Li-Ion | Li-Ion | Li-polymer |
|---|---|---|---|---|
| Battery life | 1440.0 h | N/A | 30.0 h | 30.0 h |
| Number of batteries required | 1 | 1 | 1 | N/A |
| Rechargeable battery (enclosed/integrate) | yes | yes | yes | yes |
| Battery life (page views) | N/A | N/A | 1,400 | N/A |
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