Comparison of Panasonic G51 and Siemens AL21 [S]ave
| Attribute |  Panasonic G51 × | Siemens AL21 × |
|---|---|---|
| General | ||
| Brand | Panasonic | Siemens |
| Launch | ||
| Announced | 2003, Q4 | 2005-11-01 |
| Body | ||
| Width (mm) | 18 | 19.2 |
| Length (mm) | 80 | 86.8 |
| Height (mm) | 43 | 45.8 |
| Weight (g) | 74 | 78 |
| SIM | Mini-SIM | Mini-SIM |
| Network | ||
| Technology |
|
|
| 2G bands |
|
|
| Memory | ||
| Card slot | No | No |
| Internal | - |
|
| Display | ||
| Resolution (px) | 128 x 96 | 130 x 130 |
| Display Type | CSTN | TFT |
| Battery | ||
| Type | Removable | Removable |
| Capcity (mAh) | Li-Ion | Li-Ion |
| Comms | ||
| WLAN | No | No |
| Bluetooth | No | No |
| GPS | - | - |
| Radio | No | No |
| USB | - | Proprietary |
| Sound | ||
| Loudspeaker | + | + |
| 3.5mm jack | - | - |
| Misc | ||
| Colors |
|
|
| Phonebook | 255 | Yes |
| Call records | 20 dialed, 10 received, 10 missed calls | 10 dialed, 10 received, 10 missed calls |
| Alert types | Vibration; Downloadable polyphonic ringtones | Vibration; Polyphonic(32) ringtones |
| Features | ||
| Messaging | SMS, EMS | SMS, EMS, MMS |
| Browser | WAP 1.2.1 | WAP 1.2.1 |
| 1↑Games | Yes | Yes + downloadable |
| Java | No | Yes, MIDP 1.0 |
| Stand-by (h) | 200 | 220 |
| Talk time (h) | Up to 2 h 30 min | Up to 5 h |
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