BenQ-Siemens EF81
| Network | Technology | GSM / UMTS |
|---|---|---|
| 2G bands | GSM 900 / 1800 / 1900 | |
| 3G bands | UMTS 2100 | |
| Speed | Yes, 384 kbps | |
| GPRS | Class 10 | |
| EDGE | No |
| Launch | Announced | 2006, January |
|---|---|---|
| Status | Discontinued |
| Body | Dimensions | 94 x 51 x 15.9 mm (3.70 x 2.01 x 0.63 in) |
|---|---|---|
| Weight | 110 g (3.88 oz) | |
| SIM | Mini-SIM |
| Display | Type | TFT, 256K colors |
|---|---|---|
| Size | 2.2 inches, 34 x 45 mm, 15.0 cm2 (~31.3% screen-to-body ratio) | |
| Resolution | 240 x 320 pixels, 4:3 ratio (~182 ppi density) | |
| Second external 256K colors display, TFT (120 x 160 pixels) Aluminum rear cover |
| Memory | Card slot | microSD, up to 1 GB (dedicated slot) |
|---|---|---|
| Phonebook | 500 x 20 fields, Photo call | |
| Call records | 100 dialed, 100 received, 100 missed calls | |
| Internal | 64 MB |
| Main Camera | Single | 2 MP |
|---|---|---|
| Features | rotating lens | |
| Video | Yes |
| Selfie camera | No |
|---|
| Sound | Loudspeaker | No |
|---|---|---|
| Alert types | Vibration; Downloadable polyphonic, AAC ringtones | |
| 3.5mm jack | No |
| Comms | WLAN | No |
|---|---|---|
| Bluetooth | Yes | |
| GPS | No | |
| Radio | No | |
| USB | Proprietary |
| Features | Sensors | |
|---|---|---|
| Messaging | SMS, MMS, Email | |
| Browser | WAP 2.0/xHTML, HTML | |
| Games | 5 - StarWars, SeaBattle, SuperBomber + downloadable | |
| Java | Yes, MIDP 2.0 | |
| Video telephony MP3/AAC player Video player Photo editor Predictive text input Voice dial Stopwatch Organizer |
| Battery | Removable Li-Ion 950 mAh battery | |
|---|---|---|
| Stand-by | Up to 300 h | |
| Talk time | Up to 4 h 30 min |
| Misc | Colors | Titanium Silver |
|---|
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