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| Phone | Samsung SGH-E640 | Cal-Comp EZ | Kyocera 3225 | Kyocera DuraXV LTE |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? | ? |
2.6" diag. 4 : 3 |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
128 x 128 pixels LCD (STN) |
? LCD (Grayscale) |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 800 mAh | 800 mAh | ? | 1,530 mAh |
| Processor | ? | ? | ? | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) |
| RAM | ? | ? | ? | 2 GB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 16 GB |
| Main Camera | 1 megapixel | - | - | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QCIF (176 x 144) | - | - | 720p HD |
| Front Camera | - | - | - | - |
| Weight |
3.17 oz (90g) |
2.47 oz (70g) |
4.23 oz (120g) |
6.17 oz (175g) |
| Dimensions |
3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm) |
4.04" x 1.71" x 0.63" (103 x 43 x 16 mm) |
3.4" x 1.97" x 1.02" (86 x 50 x 25.9 mm) |
4.21" x 2.26" x 1.03" (107 x 57 x 26.2 mm) |
| Form Factor | Clamshell | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
4G LTE: 2, 4, 5, 13 WCDMA: 1, 2, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | 1xRTT | 1xRTT | LTE (Cat 4) |
| Features | ||||
| Flashlight | - | - | - | Yes |
| GPS / Location | - | Yes | Yes | Yes |
| Ruggedized | - | - | - | Yes |
| Water-Resistant | - | - | - |
Yes IPX8 (SCUBA) |
| Accessibility | ||||
| Adjustable Text Size | - | - | - | Yes |
| Hearing Aid Compatible | - | - | - |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | - | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | - | Yes |
| Mobile Hotspot | - | - | - | Yes |
| USB | Yes |
Yes Mini-USB |
- |
Yes Micro-USB |
| Wi-Fi | - | - | - | Yes |
| Contacts | ||||
| Picture ID | Yes | - | - | Yes |
| Ringer ID | Yes | - | - | Yes |
| Voice Dialing | - | - | Yes | Yes |
| Customization | ||||
| Custom Graphics | Yes | - | Yes | Yes |
| Custom Ringtones | Yes | - | Yes | Yes |
| Real-Music Ringers | Yes | - | - | Yes |
| Data & Network | ||||
| Data Tethering | - | - | Yes | Yes |
| WAP / Web Browser | Yes | - | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | - | Yes | Yes |
| Side Keys | Yes | - | - | Yes |
| Memory | ||||
| Memory Card Slot | - | - | - | Yes |
| Messaging | ||||
| Email Client | Yes | - | - | Yes |
| EMS / Picture Messaging | Yes | - | Yes | - |
| MMS | Yes | - | - | Yes |
| Text Messaging Templates | Yes | Yes | - | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | Yes | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | Yes | Yes | - | Yes |
| Voice Memo | Yes | Yes * | - | Yes |
| Software | ||||
| BREW | - | - | Yes | - |
| Games | Yes | - | Yes | - |
| Java (J2ME) | Yes | - | - | - |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Headset Jack (2.5 mm) | - | Yes | Yes | - |
| Push-To-Talk | - | - | - | Yes |
| Speaker Phone | Yes | - | Yes | Yes |
| * Some versions only | ||||
| Samsung SGH-E640 | Cal-Comp EZ | Kyocera 3225 | Kyocera DuraXV LTE | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-E640 | Cal-Comp EZ | Kyocera 3225 | Kyocera DuraXV LTE |
