Siemens A31
Memory
| Internal | 1.5MB |
| Call records | 10 dialed, 10 received, 10 missed calls |
| Phonebook | Yes |
| Card slot | No |
Display
| Resolution | 128 x 128 pixels, 1:1 ratio |
| Size | |
| Type | CSTN, 65K colors |
Body
| SIM | Mini-SIM |
| Weight | 85 g (3.00 oz) |
| Dimensions | 102 x 46 x 17.6 mm, 75 cc (4.02 x 1.81 x 0.69 in) |
Battery
| Talk time | Up to 5 h |
| Stand-by | Up to 270 h |
| Type | Removable Li-Ion 820 mAh battery |
Sound
| 3.5mm jack | No |
| Alert types | Vibration; Polyphonic(32) ringtones |
| Loudspeaker | Yes |
Features
Predictive text input Organizer | |
| Java | Yes, MIDP 1.0 |
| Games | Yes + downloadable |
| Browser | WAP 1.2.1 |
| Messaging | SMS, EMS, MMS |
| Sensors |
Misc
| Colors | Anthracite, Ruby Red |
Comms
| USB | No |
| Radio | No |
| GPS | No |
| Bluetooth | No |
| WLAN | No |
Camera
No |
Launch
| Status | Discontinued |
| Announced | 2005, November |
Network
| EDGE | No |
| GPRS | Class 8 |
GSM 850 / 1900 - US version | |
| 2G bands | GSM 900 / 1800 |
| Technology |