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| Phone | Samsung SGH-E640 | Sharp Sidekick LX 2007 | Sony Ericsson K850 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
3" diag. 5 : 3 |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
400 x 240 pixels (~155 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 800 mAh | 1,540 mAh | ? |
| Processor | ? | 200 MHz OMAP 331 | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | 1 megapixel | 5 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | QCIF (176 x 144) | ? | ? |
| Front Camera | - | - | - |
| Weight |
3.17 oz (90g) |
5.7 oz (162g) |
4.2 oz (119g) |
| Dimensions |
3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm) |
5.12" x 2.36" x 0.7" (130 x 60 x 17.9 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
| Form Factor | Clamshell | Swivel | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | EDGE | HSDPA 3.6 |
| Features | |||
| Flashlight | - | Yes | - |
| Accessibility | |||
| Adjustable Text Size | - | Yes | - |
| Hearing Aid Compatible | - |
Yes M3 (mostly compatible) |
- |
| Multiple Languages | Yes | - | Yes |
| TTY/TDD (Digital) | - | - | Yes |
| Alerts | |||
| Extra Display | Yes | - | - |
| Ringer Profiles | - | Yes | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| USB | Yes | Yes | Yes |
| Contacts | |||
| Picture ID | Yes | Yes | Yes |
| Ringer ID | Yes | Yes | Yes |
| Voice Dialing | - | - | Yes |
| Customization | |||
| Custom Graphics | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes |
| Real-Music Ringers | Yes | Yes | Yes |
| Data & Network | |||
| Data Tethering | - | - | Yes |
| WAP / Web Browser | Yes | Yes | Yes |
| Input | |||
| Predictive Text Entry | Yes | - | Yes |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - |
| Memory | |||
| Memory Card Slot | - | Yes | Yes |
| Messaging | |||
| Email Client | Yes | Yes | Yes |
| EMS / Picture Messaging | Yes | - | - |
| Instant Messaging | - | Yes | - |
| MMS | Yes | Yes | Yes |
| Text Messaging Templates | Yes | Yes | Yes |
| Music | |||
| FM Radio | - | - | Yes |
| Headphone Jack (3.5mm) | - | Yes | - |
| Music Player | Yes | Yes | Yes |
| Photo & Video | |||
| Video Calling | - | - | Yes * |
| Productivity | |||
| Alarm | Yes | Yes * | Yes |
| Calculator | Yes | - | Yes |
| Calendar | Yes | Yes | Yes |
| To-Do List | Yes | Yes | Yes |
| Voice Memo | Yes | - | Yes |
| Software | |||
| Games | Yes | Yes | Yes |
| Java (J2ME) | Yes | Yes | Yes |
| Voice | |||
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Samsung SGH-E640 | Sharp Sidekick LX 2007 | Sony Ericsson K850 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-E640 | Sharp Sidekick LX 2007 | Sony Ericsson K850 |
