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| Phone | Samsung SCH-A990 | ZTE Z221 | Nokia Lumia 920 | Kyocera DuraCore / DuraShock | ZTE Agent |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2" diag. 4 : 3 |
4.5" diag. 5 : 3 |
2" diag. 4 : 3 |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
768 x 1280 pixels (~332 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? | ? |
| Battery | 1,000 mAh | 900 mAh | 2,000 mAh | 1,360 mAh | 900 mAh |
| Processor | ? | ? | 1.5 GHz Qualcomm Snapdragon S4 | Qualcomm QSC6085 | ? |
| RAM | ? | ? | 1 GB | ? | ? |
| Storage | ? raw hardware | 142 MB | 32 GB | ? raw hardware | ? raw hardware |
| Main Camera | 3 megapixel | Yes | 8 megapixel | - | 1 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | ? | QCIF (176 x 144) | 1080p HD | - | ? |
| Front Camera | - | - | 1 megapixel | - | - |
| Weight |
4.4 oz (125g) |
3.24 oz (92g) |
6.53 oz (185g) |
4.44 oz (126g) |
3.53 oz (100g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
5.12" x 2.79" x 0.42" (130 x 71 x 10.7 mm) |
3.88" x 1.96" x 0.94" (99 x 50 x 23.9 mm) |
4.3" x 1.9" x 0.6" (109 x 48 x 15.2 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | Windows | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
CDMA: 800, 850, 1900 |
CDMA: 850, 1700, 1900 |
| Data Technology | EVDO r0 | HSDPA 3.6 | LTE (Cat 3) | EVDO rA | 1xRTT |
| Features | |||||
| Flashlight | Yes | - | - | - | - |
| GPS / Location | Yes | Yes | n/a | Yes | Yes |
| Ruggedized | - | - | - | Yes | - |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | Yes | - |
| Hearing Aid Compatible | Yes | Yes | Yes | Yes | Yes |
| Multiple Languages | Yes | Yes | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | Yes | Yes | - | Yes | - |
| Ringer Profiles | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a | - | - |
| NFC | - | - | Yes | - | - |
| USB | Yes | Yes |
Yes Micro-USB |
Yes |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 a,b,g,n) |
- | - |
| Contacts | |||||
| Picture ID | Yes | - | n/a | - | - |
| Ringer ID | Yes | - | n/a | Yes | Yes |
| Voice Dialing | Yes | - | n/a | Yes | - |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | Yes | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes | Yes |
| Real-Music Ringers | Yes | Yes | n/a | Yes | Yes |
| Data & Network | |||||
| Data Tethering | Yes | - | n/a | - | - |
| WAP / Web Browser | Yes | Yes | n/a | Yes | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | - | Yes | - | - |
| Memory | |||||
| Memory Card Slot | Yes | - | - | - | Yes |
| Messaging | |||||
| Email Client | - | Yes | n/a | - | Yes |
| EMS / Picture Messaging | Yes | - | n/a | - | - |
| Instant Messaging | - | Yes | n/a | - | Yes |
| MMS | Yes | Yes | n/a | Yes | Yes |
| Text Messaging Templates | Yes | Yes | n/a | Yes | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | Yes | - | Yes |
| Music Player | Yes | - | n/a | - | Yes |
| Stereo Speakers | Yes | - | - | - | - |
| Photo & Video | |||||
| TV Output | Yes | - | - | - | - |
| Power | |||||
| Wireless Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | Yes | Yes |
| Calculator | Yes | Yes | n/a | Yes | Yes |
| Calendar | Yes | Yes | n/a | Yes | Yes |
| To-Do List | - | - | n/a | - | - |
| Voice Memo | Yes | Yes | n/a | Yes | Yes |
| Software | |||||
| BREW | Yes | - | n/a | - | Yes |
| Games | Yes | Yes | n/a | Yes | Yes |
| Java (J2ME) | - | Yes | n/a | Yes | - |
| Voice | |||||
| Headset Jack (2.5 mm) | - | - | n/a | Yes | - |
| Push-To-Talk | - | - | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SCH-A990 | ZTE Z221 | Nokia Lumia 920 | Kyocera DuraCore / DuraShock | ZTE Agent | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | ZTE Z221 | Nokia Lumia 920 | Kyocera DuraCore / DuraShock | ZTE Agent |
