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| Phone | Samsung SGH-A157 | ZTE Z331 | Motorola KRZR K1m | Motorola RAZR V3c |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
1.8" diag. 4 : 3 |
2.4" diag. 4 : 3 |
? | ? |
| Display Resolution & Type |
128 x 160 pixels (~116 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 800 mAh | 950 mAh | 880 mAh | 740 mAh |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | 256 MB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | 3 megapixel | 1 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | QCIF (176 x 144) | ? | ? |
| Front Camera | - | - | - | - |
| Weight |
2.99 oz (85g) |
4 oz (113g) |
3.63 oz (103g) |
3.49 oz (99g) |
| Dimensions |
3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
4.06" x 1.73" x 0.67" (103 x 44 x 17 mm) |
3.9" x 2.1" x 0.6" (99 x 53 x 15.2 mm) |
| Form Factor | Clamshell | Clamshell | Clamshell | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
| Data Technology | ? | HSDPA 3.6 | EVDO r0 | EVDO r0 |
| Features | ||||
| GPS / Location | Yes | Yes | Yes | Yes |
| Accessibility | ||||
| Adjustable Text Size | Yes | - | - | - |
| Hearing Aid Compatible |
Yes M4 (very compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | Yes | Yes |
| Ringer Profiles | Yes | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes Mini-USB |
Yes Mini-USB |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | Yes |
| Ringer ID | Yes | 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 | Yes |
| WAP / Web Browser | Yes | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | Yes |
| Side Keys | - | Yes | Yes | Yes |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | - |
| Messaging | ||||
| Email Client | - | Yes | - | - |
| EMS / Picture Messaging | - | - | Yes | Yes |
| Instant Messaging | - | Yes | Yes * | - |
| MMS | Yes | Yes | Yes | Yes |
| Text Messaging Templates | Yes | Yes | Yes | Yes |
| Music | ||||
| Music Player | - | Yes | 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 | Yes |
| Software | ||||
| BREW | - | - | Yes * | Yes |
| Games | - | Yes | Yes | Yes |
| Java (J2ME) | - | Yes | Yes * | - |
| Voice | ||||
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Samsung SGH-A157 | ZTE Z331 | Motorola KRZR K1m | Motorola RAZR V3c | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-A157 | ZTE Z331 | Motorola KRZR K1m | Motorola RAZR V3c |
