BenQ-Siemens EF81
| General | 2G Network | GSM 900 / 1800 / 1900 | 3G Network | UMTS 2100 | Announced | 2006, January | Status | Available |
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| Size | Dimensions | 94 x 51 x 15.9 mm | Weight | 110 g |
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| Display | Type | TFT, 256K colors | Size | 240 x 320 pixels, 2.2 inches, 34 x 45 mm | - Second external 256K colors display, TFT (120 x 160 pixels) - Aluminum rear cover |
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| Ringtones | Type | Polyphonic (64 channels), AAC | Customization | Download | Vibration | Yes |
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| Memory | Phonebook | 500 x 20 fields, Photo call | Call records | 100 dialed, 100 received, 100 missed calls | Card slot | microSD (TransFlash), up to 1GB | - 64 MB internal memory |
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| Data | GPRS | Class 10 (4+1/3+2 slots), 32 - 48 kbps | HSCSD | No | EDGE | No | 3G | Yes, 384 kbps | WLAN | No | Bluetooth | Yes | Infrared port | No | USB | Yes |
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| Features | Messaging | SMS, MMS, Email | Browser | WAP 2.0/xHTML, HTML | Games | 5 - StarWars, SeaBattle, SuperBomber + downloadable | Colors | Titanium Silver | Camera | 2 MP, 1600x1200 pixels, rotating lens, video | - Video telephony - Java MIDP 2.0 - MP3/AAC player - Video player - Photo editor - T9 - Voice dial - Currency converter - Calculator - Stopwatch - Organizer |
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| Battery | Standard battery, Li-Ion 950 mAh | Stand-by | Up to 300 h | Talk time | Up to 4 h 30 min |
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BenQ-Siemens EF81 - user opinions