Comparison of Nokia 7900 Crystal Prism and Nokia E51 camera-free [S]ave
| Attribute |  Nokia 7900 Crystal Prism × |  Nokia E51 camera-free × |
|---|---|---|
| General | ||
| Brand | Nokia | Nokia |
| Launch | ||
| Announced | 2008-01-01 | 2008-02-01 |
| Body | ||
| Width (mm) | 11.3 | 12 |
| Length (mm) | 112 | 114.8 |
| Height (mm) | 45 | 46 |
| Weight (g) | 101 | 100 |
| SIM | Mini-SIM | Mini-SIM |
| Network | ||
| Technology |
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| 2G bands |
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| 3G bands |
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| Speed |
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| Platform | ||
| OS | - | Symbian OS 9.2 |
| CPU | - | 369 MHz ARM 11 |
| Memory | ||
| Card slot | No | microSDHC (dedicated slot) |
| Internal |
|
|
| Display | ||
| Size (in) | 2 | 2 |
| Resolution (px) | 240 x 320 | 240 x 320 |
| Display Type | OLED | TFT |
| Battery | ||
| Type | Removable | Removable |
| Capcity (mAh) | Li-Ion | Li-Ion |
| Main Camera | ||
| Main Camera Type | Single | - |
| Main Camera Properties |
| - |
| Main Camera Video | QCIF | - |
| 1↑Main Camera Features | LED flash | - |
| Comms | ||
| WLAN | No | Wi-Fi 802.11b/g, VoIP over WLAN |
| Bluetooth | 2.0 | 2.0, A2DP |
| GPS | - | - |
| Radio | No | FM radio |
| USB | microUSB | miniUSB 2.0 |
| Sound | ||
| Loudspeaker | + | + |
| 3.5mm jack | - | - |
| Misc | ||
| Colors |
|
|
| SAR EU Head (W/kg) | 0.93 | 1.38 |
| SAR Head (W/kg) | 0.83 | 1.47 |
| SAR Body (W/kg) | 0.81 | 0.75 |
| Phonebook | Yes | - |
| Alert types | Vibration; Downloadable polyphonic, MP3 ringtones | Vibration; Downloadable polyphonic, MP3 ringtones |
| Call records | 20 dialed, 20 received, 20 missed calls | - |
| Infrared port | - | Yes |
| Features | ||
| Browser | WAP 2.0/xHTML | WAP 2.0/xHTML, HTML |
| Stand-by (h) | 240 | 310 |
| Messaging | SMS, MMS, Email | - |
| Talk time (h) | Up to 3 h | Up to 4 h 20 min |
| Games | Yes + downloadable | - |
| Java | Yes, MIDP 2.0 | - |
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