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| Phone | ZTE Z221 | Motorola i580 | Motorola Sidekick Slide | Kyocera DuraCore / DuraShock |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2" diag. 4 : 3 |
? | ? |
2" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
320 x 240 pixels LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 900 mAh | ? | ? | 1,360 mAh |
| Processor | ? | ? | 225 MHz TI OMAP 850 | Qualcomm QSC6085 |
| RAM | ? | ? | ? | ? |
| Storage | 142 MB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | Yes | 1 megapixel | 1 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QCIF (176 x 144) | ? | - | - |
| Front Camera | - | - | - | - |
| Weight |
3.24 oz (92g) |
4.9 oz (139g) |
5.3 oz (150g) |
4.44 oz (126g) |
| Dimensions |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
3.68" x 2.2" x 1.2" (93 x 56 x 30.5 mm) |
4.65" x 2.44" x 0.69" (118 x 62 x 17.5 mm) |
3.88" x 1.96" x 0.94" (99 x 50 x 23.9 mm) |
| Form Factor | Clamshell | Clamshell | Slide | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
iDEN: 800 |
GSM: 850, 900, 1800, 1900 |
CDMA: 800, 850, 1900 |
| Data Technology | HSDPA 3.6 | WiDEN | EDGE | EVDO rA |
| Features | ||||
| GPS / Location | Yes | Yes | - | Yes |
| Ruggedized | - | Yes | - | Yes |
| Accessibility | ||||
| Adjustable Text Size | - | - | Yes | Yes |
| Hearing Aid Compatible | Yes | Yes | - | Yes |
| Multiple Languages | Yes | Yes | - | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | Yes |
| Alerts | ||||
| Extra Display | Yes | Yes | - | Yes |
| Ringer Profiles | Yes | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| USB | Yes | - | Yes | Yes |
| Contacts | ||||
| Picture ID | - | 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 | - | - |
| 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 | - | Yes | - |
| Instant Messaging | Yes | - | Yes | - |
| MMS | Yes | Yes | Yes | Yes |
| Text Messaging Templates | Yes | Yes | - | Yes |
| Music | ||||
| Music Player | - | Yes * | Yes | - |
| Productivity | ||||
| Alarm | Yes | - | Yes | Yes |
| Calculator | Yes | Yes * | - | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | - | - | Yes | - |
| Voice Memo | Yes | Yes | - | Yes |
| Software | ||||
| Games | Yes | Yes | Yes | Yes |
| Java (J2ME) | Yes | Yes | Yes | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | - | Yes | Yes | Yes |
| Push-To-Talk | - | Yes | - | Yes * |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| ZTE Z221 | Motorola i580 | Motorola Sidekick Slide | Kyocera DuraCore / DuraShock | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z221 | Motorola i580 | Motorola Sidekick Slide | Kyocera DuraCore / DuraShock |
