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| Phone | ZTE Z331 | Sonim XP Strike | Samsung SCH-A870 / Siren |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
2" diag. 4 : 3 |
? |
| Display Resolution & Type |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 950 mAh | 1,950 mAh | 1,000 mAh |
| Processor | ? | ? | ? |
| RAM | ? | 256 MB | ? |
| Storage | ? raw hardware | 512 MB | ? raw hardware |
| Main Camera | 3 megapixel | 2 megapixel | Yes |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | QCIF (176 x 144) | ? | - |
| Front Camera | - | - | - |
| Weight |
4 oz (113g) |
6.52 oz (185g) |
3.4 oz (96g) |
| Dimensions |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
4.95" x 2.3" x 0.98" (126 x 58 x 24.9 mm) |
3.6" x 1.8" x 0.85" (91 x 46 x 21.6 mm) |
| Form Factor | Clamshell | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 800, 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
| Data Technology | HSDPA 3.6 | EVDO rA | 1xRTT |
| Features | |||
| Flashlight | - | Yes | - |
| GPS / Location | Yes | Yes | Yes |
| Ruggedized | - | Yes | - |
| Water-Resistant | - | Yes | - |
| Accessibility | |||
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | Yes |
| Alerts | |||
| Extra Display | Yes | - | Yes |
| Ringer Profiles | Yes | Yes | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| USB |
Yes Micro-USB |
Yes | - |
| Contacts | |||
| Picture ID | Yes | Yes | Yes |
| Ringer ID | 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 |
| Memory | |||
| Memory Card Slot | Yes | Yes | - |
| Messaging | |||
| Email Client | Yes | - | - |
| EMS / Picture Messaging | - | - | Yes |
| Instant Messaging | Yes | - | - |
| MMS | Yes | Yes | Yes |
| Text Messaging Templates | Yes | - | - |
| Music | |||
| FM Radio | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | - |
| Music Player | Yes | Yes | - |
| Productivity | |||
| Alarm | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes |
| To-Do List | - | Yes | - |
| Voice Memo | Yes | Yes | - |
| Software | |||
| BREW | - | - | Yes |
| Games | Yes | Yes | Yes |
| Java (J2ME) | Yes | Yes | - |
| Voice | |||
| Push-To-Talk | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes |
| ZTE Z331 | Sonim XP Strike | Samsung SCH-A870 / Siren | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z331 | Sonim XP Strike | Samsung SCH-A870 / Siren |
