Compare Siemens A31
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  |  |  |  |  |  |  |
|---|---|---|---|---|---|---|
| Dimensions: | 102 x 46 x 18 mm | 87 x 46 x 19 mm | 103 x 44 x 17 mm | 102 x 44 x 18 mm | 79 x 41 x 20 mm | 105 x 46 x 18 mm |
| Weight: | 85 gr | 78 gr | 90 gr | 86 gr | 80 gr | 95 gr |
| Stand-by time: | 1,6 week(s) | 1,3 week(s) | 1,5 week(s) | 6,7 day(s) | 1,3 week(s) | 2,7 week(s) |
| Call time: | 5 hour(s) | 5 hour(s) | 5 hour(s) | 6 hour(s) | 5 hour(s) | 8 hour(s) |
| Announced: | 23 november 2005 | 23 november 2005 | 21 october 2005 | 12 october 2005 | 23 november 2005 | 12 october 2005 |
Design type | ||||||
| Monoblock: | ||||||
| Slider: | ||||||
| Clamshell: | ||||||
Controls | ||||||
| Directional key: | 4-way | 4-way | 4-way | 5-way | 4-way | 4-way |
| Voice command: | ||||||
| Voice dialing: | ||||||
Display | ||||||
| Colour display: | Adjustable display brightness, 65.536 colours (16 bits), CSTN | Adjustable display brightness, 65.536 colours (16 bits), TFT | Adjustable display brightness, 65.536 colours (16 bits), TFT | Adjustable display brightness, 65.536 colours (16 bits), CSTN | Adjustable display brightness, 65.536 colours (16 bits), CSTN | Adjustable display brightness, 65.536 colours (16 bits), TFT |
| Resolution: | 128 x 128 pixels | 130 x 130 pixels, 7 lines | 176 x 132 pixels, 9 lines | 128 x 128 pixels | 130 x 130 pixels, 7 lines | 132 x 176 pixels, 9 lines |
| External display: | 65.536 colours (16-bits), CSTN | |||||
| Resolution: | 96 x 64 pixels | |||||
Hardware | ||||||
| Integrated antenna: | ||||||
Telephony | ||||||
| Integrated handsfree speaker: | ||||||
| Vibrating alert: | ||||||
Operating frequency | ||||||
| Quad band: | ||||||
| Tri band: | ||||||
Data network | ||||||
| GPRS: | ||||||
Personal Information | ||||||
| Alarm clock: | ||||||
| Calculator: | ||||||
| Converter: | ||||||
| Date and time notation: | ||||||
| Phonebook with groups: | ||||||
| Reminder list: | ||||||
| Stopwatch & countdown timer: | ||||||
| To-do list: | ||||||
| Voice memo: | ||||||
| Photo phonebook: | ||||||
Available applications | ||||||
| Automatic switch on/off phone: | ||||||
| Games: | ||||||
| Java application support: | ||||||
| Image editor: | ||||||
| Photo album: | ||||||
| Video codec support: | ||||||
Messaging | ||||||
| Instant messaging: | ||||||
| MMS: | Video MMS | Video MMS | ||||
| Predictive Text Input: | T9 | T9 | T9 | T9 | T9 | T9 |
| SMS: | Group messaging, receive and send concatenated messages | Group messaging, receive and send concatenated messages | Group messaging, receive and send concatenated messages | Group messaging, receive and send concatenated messages | Group messaging, receive and send concatenated messages | Group messaging, receive and send concatenated messages |
| E-mail: | POP3, SMTP, IMAP4 | POP3, SMTP, IMAP4 | ||||
Internet | ||||||
| Internet browser: | ||||||
Audio | ||||||
| Polyphonic ringtones: | 32-tone polyphonic ringtones | 32-tone polyphonic ringtones | 40-tone polyphonic ringtones, MP3 ringtones | 16-tone polyphonic ringtones | 32-tone polyphonic ringtones | 40-tone polyphonic ringtones, MP3 ringtones |
| Audio codec support: | ||||||
Build-in memory | ||||||
| Internal memory: | 1.5 MB | 1.5 MB | 7 MB | 500 KB | 1.5 MB | 10 MB |
Connectivity | ||||||
| Synchronisation: | SyncML | SyncML | SyncML | SyncML | SyncML | |
| Tethering: | ||||||
| WAP: | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
| Infrared: | ||||||
| Bluetooth: | ||||||
Power supply | ||||||
| Battery: | User replaceable | User replaceable | User replaceable | User replaceable | User replaceable | User replaceable |
Cameras | ||||||
| Main camera: | 0.3 MP | 0.3 MP | ||||
| Rear camera system: | Portretmodus | Nachtmodus, portretmodus | Portretmodus | |||
| Video resolution: | QCIF | QCIF | ||||
Materials | ||||||
| Dirt and waterproof: | ||||||
