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| Phone | Samsung SCH-A870 / Siren | LG AX-490 | Sonim XP Strike | ZTE Z331 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
2" diag. 4 : 3 |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 1,000 mAh | 1,100 mAh | 1,950 mAh | 950 mAh |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | 256 MB | ? |
| Storage | ? raw hardware | ? raw hardware | 512 MB | ? raw hardware |
| Main Camera | Yes | Yes | 2 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | ? | QCIF (176 x 144) |
| Front Camera | - | - | - | - |
| Weight |
3.4 oz (96g) |
3.79 oz (107g) |
6.52 oz (185g) |
4 oz (113g) |
| Dimensions |
3.6" x 1.8" x 0.85" (91 x 46 x 21.6 mm) |
3.74" x 1.92" x 1" (95 x 49 x 25.4 mm) |
4.95" x 2.3" x 0.98" (126 x 58 x 24.9 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 800, 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | 1xRTT | 1xRTT | EVDO rA | HSDPA 3.6 |
| Features | ||||
| Flashlight | - | - | Yes | - |
| GPS / Location | Yes | Yes | Yes | Yes |
| Ruggedized | - | - | Yes | - |
| Water-Resistant | - | - | Yes | - |
| Accessibility | ||||
| Hearing Aid Compatible | Yes | Yes | Yes | Yes |
| Multiple Languages | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | Yes |
| Alerts | ||||
| Extra Display | Yes | Yes | - | Yes |
| Ringer Profiles | - | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| USB | - | Yes | Yes |
Yes Micro-USB |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | Yes |
| Ringer ID | - | Yes | Yes | Yes |
| Voice Dialing | Yes | Yes | - | - |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes | Yes |
| Real-Music Ringers | - | Yes | Yes | Yes |
| Data & Network | ||||
| Data Tethering | - | Yes | - | Yes |
| WAP / Web Browser | Yes | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | - | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Memory | ||||
| Memory Card Slot | - | - | Yes | Yes |
| Messaging | ||||
| Email Client | - | - | - | Yes |
| EMS / Picture Messaging | Yes | - | - | - |
| Instant Messaging | - | - | - | Yes |
| MMS | Yes | Yes | Yes | Yes |
| Text Messaging Templates | - | Yes | - | Yes |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | - | - | Yes | Yes |
| Stereo Speakers | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | - | - | Yes | - |
| Voice Memo | - | Yes | Yes | Yes |
| Software | ||||
| BREW | Yes | Yes | - | - |
| Games | Yes | Yes | Yes | Yes |
| Java (J2ME) | - | - | Yes | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | - | Yes | - | - |
| Push-To-Talk | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SCH-A870 / Siren | LG AX-490 | Sonim XP Strike | ZTE Z331 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A870 / Siren | LG AX-490 | Sonim XP Strike | ZTE Z331 |
