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| Phone | Samsung SPH-Z400 | Samsung SGH-X640 | ZTE Aspect |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
1.9" diag. 4 : 3 |
? |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
176 x 220 pixels (~150 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 1,300 mAh | 800 mAh | 1,000 mAh |
| Processor | ? | ? | 230 MHz Qualcomm QSC6270 |
| RAM | ? | ? | 128 MB |
| Storage | ? raw hardware | ? raw hardware | 256 MB |
| Main Camera | 1 megapixel | Yes | 2 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | QCIF (176 x 144) | - | QVGA (320 x 240) |
| Front Camera | - | - | - |
| Weight |
4.06 oz (115g) |
3 oz (85g) |
3.7 oz (105g) |
| Dimensions |
3.73" x 1.91" x 1" (95 x 49 x 25.4 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.55" x 2.4" x 0.45" (116 x 61 x 11.4 mm) |
| Form Factor | Clamshell | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
WCDMA: 2, 4 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO rA | GPRS | WCDMA (UMTS) |
| Features | |||
| GPS / Location | Yes | - | Yes |
| Ruggedized | Yes | - | - |
| Accessibility | |||
| Adjustable Text Size | Yes | - | - |
| Hearing Aid Compatible |
Yes M4 (very compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | Yes |
| Alerts | |||
| Extra Display | Yes | - | - |
| Ringer Profiles | - | - | Yes |
| Connectivity | |||
| Bluetooth | Yes | - | Yes |
| USB | Yes | - |
Yes Micro-USB |
| Contacts | |||
| Picture ID | Yes | Yes | Yes |
| Ringer ID | Yes | Yes | Yes |
| Voice Dialing | Yes | - | - |
| Customization | |||
| Custom Graphics | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes |
| Real-Music Ringers | Yes | - | Yes |
| Data & Network | |||
| Data Tethering | Yes | - | - |
| WAP / Web Browser | Yes | Yes | Yes |
| Input | |||
| Predictive Text Entry | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes |
| Memory | |||
| Memory Card Slot | - | - | Yes |
| Messaging | |||
| Email Client | Yes | - | Yes |
| EMS / Picture Messaging | - | Yes | - |
| MMS | - | Yes | Yes |
| Text Messaging Templates | Yes | Yes | Yes |
| Music | |||
| Headphone Jack (3.5mm) | - | - | Yes |
| Music Player | - | - | Yes |
| Stereo Speakers | Yes | - | - |
| Productivity | |||
| Alarm | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes |
| To-Do List | - | Yes | - |
| Voice Memo | Yes | Yes | Yes |
| Software | |||
| Games | 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 |
| Samsung SPH-Z400 | Samsung SGH-X640 | ZTE Aspect | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SPH-Z400 | Samsung SGH-X640 | ZTE Aspect |
