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| Phone | Samsung SGH-X640 | Nokia 2651 | Nokia 1661 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? | ? |
1.8" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
128 x 128 pixels LCD (STN) |
128 x 160 pixels (~114 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 800 mAh | 760 mAh | 860 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) |
3.4 oz (96g) |
2.9 oz (82g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.35" x 1.81" x 0.9" (85 x 46 x 22.9 mm) |
4.25" x 1.8" x 0.53" (108 x 46 x 13.5 mm) |
| Form Factor | Clamshell | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 850, 1900 |
GSM: 850, 1900 |
| Data Technology | GPRS | GPRS | - |
| Features | |||
| Flashlight | - | - | Yes |
| Accessibility | |||
| Multiple Languages | Yes | Yes | - |
| Alerts | |||
| Ringer Profiles | - | - | Yes |
| Contacts | |||
| Picture ID | Yes | - | - |
| Ringer ID | Yes | - | - |
| Customization | |||
| Custom Graphics | Yes | Yes | - |
| Custom Ringtones | Yes | Yes | - |
| Data & Network | |||
| WAP / Web Browser | Yes | Yes | - |
| Input | |||
| Predictive Text Entry | Yes | Yes | Yes |
| Side Keys | Yes | - | - |
| Messaging | |||
| Email Client | - | Yes | - |
| EMS / Picture Messaging | Yes | Yes | - |
| MMS | Yes | Yes | - |
| Text Messaging Templates | Yes | - | - |
| Music | |||
| FM Radio | - | - | Yes |
| Productivity | |||
| Alarm | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes |
| To-Do List | Yes | - | - |
| Voice Memo | Yes | - | Yes |
| Software | |||
| Games | Yes | Yes | Yes |
| Java (J2ME) | Yes | Yes | - |
| Voice | |||
| Headset Jack (2.5 mm) | Yes | - | Yes |
| Speaker Phone | Yes | - | Yes |
| Samsung SGH-X640 | Nokia 2651 | Nokia 1661 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Nokia 2651 | Nokia 1661 |
