Compare Phones
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| Phone | Samsung SGH-X640 | ZTE Z331 | Kyocera 3225 | ZTE Agent | Siemens CX75 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Not yet released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2.4" diag. 4 : 3 |
? |
2.4" diag. 4 : 3 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
? LCD (Grayscale) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
132 x 176 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? | ? |
| Battery | 800 mAh | 950 mAh | ? | 900 mAh | 750 mAh |
| Processor | ? | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | Yes | 3 megapixel | - | 1 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | QCIF (176 x 144) | - | ? | ? |
| Front Camera | - | - | - | - | - |
| Weight |
3 oz (85g) |
4 oz (113g) |
4.23 oz (120g) |
3.53 oz (100g) |
3.46 oz (98g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
3.4" x 1.97" x 1.02" (86 x 50 x 25.9 mm) |
4.3" x 1.9" x 0.6" (109 x 48 x 15.2 mm) |
4.33" x 1.88" x 0.74" (110 x 48 x 18.8 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1700, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | GPRS | HSDPA 3.6 | 1xRTT | 1xRTT | GPRS |
| Features | |||||
| GPS / Location | - | Yes | Yes | Yes | - |
| Accessibility | |||||
| Hearing Aid Compatible | - |
Yes M3, T4 (very tele-coil compatible) |
- |
Yes M4, T4 (very tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | - |
| Alerts | |||||
| Extra Display | - | Yes | - | - | - |
| Ringer Profiles | - | Yes | - | - | Yes |
| Connectivity | |||||
| Bluetooth | - | Yes | - | Yes | Yes |
| Infrared (IR) | - | - | - | - | Yes |
| USB | - |
Yes Micro-USB |
- |
Yes Micro-USB |
Yes |
| Contacts | |||||
| Picture ID | Yes | Yes | - | - | Yes |
| Ringer ID | Yes | Yes | - | Yes | Yes |
| Voice Dialing | - | - | Yes | - | - |
| Customization | |||||
| Custom Graphics | Yes | Yes | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes | Yes | Yes |
| Real-Music Ringers | - | Yes | - | Yes | - |
| Data & Network | |||||
| Data Tethering | - | Yes | Yes | - | Yes |
| WAP / Web Browser | Yes | Yes | Yes | Yes | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | Yes | Yes | Yes |
| Side Keys | Yes | Yes | - | Yes | Yes |
| Memory | |||||
| Memory Card Slot | - | Yes | - | Yes | Yes |
| Messaging | |||||
| Email Client | - | Yes | - | Yes | Yes |
| EMS / Picture Messaging | Yes | - | Yes | - | Yes |
| Instant Messaging | - | Yes | - | Yes | - |
| MMS | Yes | Yes | - | Yes | Yes |
| Text Messaging Templates | Yes | Yes | - | Yes | - |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | - | Yes | - |
| Music Player | - | Yes | - | Yes | Yes |
| Productivity | |||||
| Alarm | Yes | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes | Yes |
| To-Do List | Yes | - | - | - | Yes |
| Voice Memo | Yes | Yes | - | Yes | Yes |
| Software | |||||
| BREW | - | - | Yes | Yes | - |
| Games | Yes | Yes | Yes | Yes | Yes |
| Java (J2ME) | Yes | Yes | - | - | Yes |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | - | Yes | - | - |
| Push-To-Talk | - | - | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | ZTE Z331 | Kyocera 3225 | ZTE Agent | Siemens CX75 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | ZTE Z331 | Kyocera 3225 | ZTE Agent | Siemens CX75 |
