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| Phone | ZTE Z331 | Motorola i80s | Motorola Rival A455 | Samsung PM-A840 | Pantech Matrix Pro C820 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
? |
2.2" diag. 4 : 3 |
? |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
? |
176 x 220 pixels (~131 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (STN) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? | ? |
| Battery | 950 mAh | ? | 940 mAh | ? | 1,320 mAh |
| Processor | ? | ? | ? | ? | 528 MHz ARM 11 |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 3 megapixel | - | 2 megapixel | Yes | 2 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | QCIF (176 x 144) | - | QVGA (320 x 240) | - | QCIF (176 x 144) |
| Front Camera | - | - | - | - | - |
| Weight |
4 oz (113g) |
4 oz (113g) |
4.48 oz (127g) |
3.28 oz (93g) |
5.34 oz (151g) |
| Dimensions |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
5.4" x 2" x 1" (137 x 51 x 25.4 mm) |
3.82" x 1.96" x 0.73" (97 x 50 x 18.5 mm) |
3.54" x 1.85" x 0.94" (90 x 47 x 23.9 mm) |
4.2" x 2" x 0.9" (107 x 51 x 22.9 mm) |
| Form Factor | Clamshell | Slab | Slide | Clamshell | Slide |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) | Windows Mobile Standard |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
iDEN: 800 |
CDMA: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | - | EVDO r0 | 1xRTT | HSDPA 3.6 |
| Features | |||||
| GPS / Location | Yes | - | Yes | Yes | n/a |
| Accessibility | |||||
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
- |
| Multiple Languages | Yes | Yes | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | Yes | - | - | Yes | - |
| Ringer Profiles | Yes | Yes | - | - | Yes |
| Connectivity | |||||
| Bluetooth | Yes | - | Yes | - | Yes |
| USB |
Yes Micro-USB |
- |
Yes Micro-USB |
- | Yes |
| Contacts | |||||
| Picture ID | Yes | - | Yes | Yes | n/a |
| Ringer ID | Yes | - | Yes | Yes | n/a |
| Voice Dialing | - | Yes | Yes | Yes | n/a |
| Customization | |||||
| Custom Graphics | Yes | - | Yes | Yes | n/a |
| Custom Ringtones | Yes | - | Yes | Yes | n/a |
| Real-Music Ringers | Yes | - | Yes | - | n/a |
| Data & Network | |||||
| Data Tethering | Yes | Yes | Yes | - | n/a |
| WAP / Web Browser | Yes | Yes | Yes | Yes | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | - | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - | Yes |
| Touch Screen | - | - | Yes | - | - |
| Memory | |||||
| Memory Card Slot | Yes | - | Yes | - | Yes |
| Messaging | |||||
| Email Client | Yes | - | Yes | - | n/a |
| EMS / Picture Messaging | - | - | Yes | - | n/a |
| Instant Messaging | Yes | - | Yes | - | n/a |
| MMS | Yes | - | Yes | - | n/a |
| Text Messaging Templates | Yes | - | Yes | Yes | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | Yes | - | - |
| Music Player | Yes | - | Yes | - | n/a |
| Productivity | |||||
| Alarm | Yes | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | Yes | n/a |
| Calendar | Yes | Yes | Yes | Yes | n/a |
| To-Do List | - | - | - | Yes | n/a |
| Voice Memo | Yes | Yes | Yes | Yes | n/a |
| Software | |||||
| BREW | - | - | Yes | - | n/a |
| Games | Yes | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes | - | Yes | n/a |
| Voice | |||||
| Headset Jack (2.5 mm) | - | Yes | - | Yes | n/a |
| Push-To-Talk | - | Yes | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| ZTE Z331 | Motorola i80s | Motorola Rival A455 | Samsung PM-A840 | Pantech Matrix Pro C820 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z331 | Motorola i80s | Motorola Rival A455 | Samsung PM-A840 | Pantech Matrix Pro C820 |
