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| Phone | Samsung SGH-X640 | Kyocera Energi K490 / K493 / K494 | Kyocera K404 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? | ? | ? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
104 x 80 pixels LCD (STN) |
104 x 90 pixels LCD (STN) |
| Display Refresh | ? | ? | ? |
| Battery | 800 mAh | ? | 900 mAh |
| Processor | ? | ? | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | Yes | - | - |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | - | - |
| Front Camera | - | - | - |
| Weight |
3 oz (85g) |
3.52 oz (100g) |
3.52 oz (100g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.45" x 1.89" x 0.91" (113 x 48 x 23.1 mm) |
4.45" x 1.89" x 0.91" (113 x 48 x 23.1 mm) |
| Form Factor | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
|
| Data Technology | GPRS | 1xRTT | 1xRTT |
| Features | |||
| Flashlight | - | Yes | Yes |
| GPS / Location | - | Yes | Yes |
| Accessibility | |||
| Multiple Languages | Yes | Yes * | Yes |
| TTY/TDD (Digital) | - | Yes | Yes |
| Connectivity | |||
| USB | - | Yes | - |
| Contacts | |||
| Picture ID | Yes | - | - |
| Ringer ID | Yes | Yes | - |
| Voice Dialing | - | Yes | Yes |
| Customization | |||
| Changeable Body Plates | - | Yes | Yes |
| Custom Graphics | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes |
| Data & Network | |||
| Data Tethering | - | Yes | - |
| WAP / Web Browser | Yes | Yes | - |
| Input | |||
| Predictive Text Entry | Yes | Yes | Yes |
| Side Keys | Yes | - | - |
| Messaging | |||
| EMS / Picture Messaging | Yes | Yes | Yes |
| MMS | Yes | - | - |
| Text Messaging Templates | Yes | - | - |
| Productivity | |||
| Alarm | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes |
| To-Do List | Yes | - | - |
| Voice Memo | Yes | - | - |
| Software | |||
| BREW | - | Yes | - |
| Games | Yes | Yes | Yes * |
| Java (J2ME) | Yes | - | - |
| Voice | |||
| Headset Jack (2.5 mm) | Yes | Yes | Yes |
| Speaker Phone | Yes | - | - |
| * Some versions only | |||
| Samsung SGH-X640 | Kyocera Energi K490 / K493 / K494 | Kyocera K404 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Kyocera Energi K490 / K493 / K494 | Kyocera K404 |









