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| Phone | Samsung SGH-X640 | Nokia 6155i | Samsung SCH-A990 | Sharp Sidekick LX 2009 | Samsung Jack i637 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? | ? |
3.2" diag. 16 : 9 |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
854 x 480 pixels (~306 ppi) LCD (TFT/TFD) |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? | ? |
| Battery | 800 mAh | 1,070 mAh | 1,000 mAh | 1,250 mAh | 1,480 mAh |
| Processor | ? | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | Yes | 1 megapixel | 3 megapixel | 3 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | sub-QCIF (128 x 96) | ? | QVGA (320 x 240) | ? |
| Front Camera | - | - | - | - | - |
| Weight |
3 oz (85g) |
4.44 oz (126g) |
4.4 oz (125g) |
5.78 oz (164g) |
3.6 oz (102g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.41" x 1.79" x 1.02" (87 x 45 x 25.9 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.12" x 2.36" x 0.63" (130 x 60 x 16 mm) |
4.4" x 2.4" x 0.5" (112 x 61 x 12.7 mm) |
| Form Factor | Clamshell | Clamshell | Clamshell | Swivel | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) | Windows Mobile Standard |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | 1xRTT | EVDO r0 | HSPA 7.2 | HSDPA 3.6 |
| Features | |||||
| Flashlight | - | - | Yes | - | - |
| GPS / Location | - | Yes | Yes | Yes | n/a |
| Accessibility | |||||
| Adjustable Text Size | - | - | - | Yes | n/a |
| Hearing Aid Compatible | - | - | Yes | Yes | Yes |
| Multiple Languages | Yes | Yes | Yes | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | - | - |
| Alerts | |||||
| Extra Display | - | Yes | Yes | - | - |
| Ringer Profiles | - | Yes | - | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - | - | Yes | Yes | Yes |
| Infrared (IR) | - | Yes | - | - | - |
| USB | - | Yes | Yes | Yes | Yes |
| Wi-Fi | - | - | - | - |
Yes 802.11 b,g |
| Contacts | |||||
| Picture ID | Yes | Yes | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | Yes | Yes | n/a |
| Voice Dialing | - | Yes | Yes | - | n/a |
| Customization | |||||
| Custom Graphics | Yes | Yes | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | Yes | Yes | n/a |
| Real-Music Ringers | - | Yes | Yes | Yes | n/a |
| Data & Network | |||||
| Data Tethering | - | Yes | Yes | - | n/a |
| WAP / Web Browser | Yes | Yes | Yes | Yes | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | Yes | - | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes | Yes |
| Memory | |||||
| Memory Card Slot | - | - | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | - | - | Yes | n/a |
| EMS / Picture Messaging | Yes | - | Yes | - | n/a |
| Instant Messaging | - | - | - | Yes | n/a |
| MMS | Yes | Yes | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | Yes | Yes | n/a |
| Music | |||||
| FM Radio | - | Yes | - | - | - |
| Headphone Jack (3.5mm) | - | - | - | Yes | - |
| Music Player | - | - | Yes | Yes | n/a |
| Stereo Speakers | - | - | Yes | - | - |
| Photo & Video | |||||
| TV Output | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | - | n/a |
| Calendar | Yes | Yes | Yes | Yes | n/a |
| To-Do List | Yes | Yes | - | Yes | n/a |
| Voice Memo | Yes | Yes | Yes | - | n/a |
| Software | |||||
| BREW | - | Yes * | Yes | - | n/a |
| Games | Yes | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes * | - | Yes | n/a |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | Yes | - | - | n/a |
| Push-To-Talk | - | Yes * | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Nokia 6155i | Samsung SCH-A990 | Sharp Sidekick LX 2009 | Samsung Jack i637 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Nokia 6155i | Samsung SCH-A990 | Sharp Sidekick LX 2009 | Samsung Jack i637 |
