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| Phone | Samsung SGH-X640 | Samsung SGH-P850 / P858 | Kyocera KX433 / KX434 / K10 / Rave / Royale | Kyocera DuraXE Epic / DuraXA Equip |
| Current U.S. Carriers | (none) | (none) | (none) | US Cellular |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? | ? |
2.6" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
104 x 80 pixels LCD (STN) |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 800 mAh | 950 mAh | ? | 1,770 mAh |
| Processor | ? | ? | ? | 1.2 GHz Qualcomm Snapdragon 215 |
| RAM | ? | ? | ? | 2 GB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 16 GB |
| Main Camera | Yes | 3 megapixel | - | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | - | 720p HD |
| Front Camera | - | - | - | - |
| Weight |
3 oz (85g) |
4.23 oz (120g) |
3.52 oz (100g) |
6.8 oz (193g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.77" x 1.86" x 0.96" (96 x 47 x 24.4 mm) |
4.42" x 1.92" x 0.92" (112 x 49 x 23.4 mm) |
4.36" x 2.22" x 1.07" (111 x 56 x 27.2 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 14, 66 WCDMA: 1, 2, 4, 5 |
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| Data Technology | GPRS | EDGE | 1xRTT | LTE (Cat 4) |
| Features | ||||
| Barometer | - | - | - | Yes |
| Flashlight | - | - | Yes | Yes |
| GPS / Location | - | - | Yes | Yes |
| Ruggedized | - | - | - | Yes |
| Water-Resistant | - | - | - |
Yes IPX8 (SCUBA) |
| Accessibility | ||||
| Adjustable Text Size | - | - | - | Yes |
| Hearing Aid Compatible | - | - | - |
Yes M4, 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 USB Type C |
| Wi-Fi | - | - | - |
Yes 4 (802.11 a,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | - | Yes |
| Ringer ID | Yes | Yes | - | Yes |
| Voice Dialing | - | - | Yes | Yes |
| Customization | ||||
| Changeable Body Plates | - | - | Yes | - |
| Custom Graphics | Yes | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes | Yes |
| Real-Music Ringers | - | Yes | - | Yes |
| Data & Network | ||||
| Data Tethering | - | - | Yes | Yes |
| WAP / Web Browser | Yes | Yes | Yes * | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | Yes |
| Side Keys | Yes | Yes | - | Yes |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | Yes | - | Yes |
| EMS / Picture Messaging | Yes | - | Yes | - |
| MMS | Yes | Yes | - | Yes |
| Text Messaging Templates | Yes | Yes | Yes | Yes |
| Music | ||||
| FM Radio | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | - | Yes | - | Yes |
| Stereo Speakers | - | Yes | - | - |
| Photo & Video | ||||
| TV Output | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | Yes | - | - | - |
| Voice Memo | Yes | Yes | - | Yes |
| Software | ||||
| BREW | - | - | Yes * | - |
| Games | Yes | Yes | Yes | - |
| Java (J2ME) | Yes | Yes | 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-X640 | Samsung SGH-P850 / P858 | Kyocera KX433 / KX434 / K10 / Rave / Royale | Kyocera DuraXE Epic / DuraXA Equip | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung SGH-P850 / P858 | Kyocera KX433 / KX434 / K10 / Rave / Royale | Kyocera DuraXE Epic / DuraXA Equip |
