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| Phone | Samsung SGH-X640 | Motorola Droid 4 | Motorola Q9m / Q9c | Sharp Sidekick LX 2007 | Sharp Sidekick LX 2009 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
4" diag. 16 : 9 |
2.4" diag. 4 : 3 |
3" diag. 5 : 3 |
3.2" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
540 x 960 pixels (~275 ppi) LCD (TFT/TFD) |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
400 x 240 pixels (~155 ppi) LCD (TFT/TFD) |
854 x 480 pixels (~306 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | ? | ? |
| Battery | 800 mAh | 1,785 mAh | 1,170 mAh | 1,540 mAh | 1,250 mAh |
| Processor | ? | ? | PXA27x (ARM920T) | 200 MHz OMAP 331 | ? |
| RAM | ? | 1 GB | ? | ? | ? |
| Storage | ? raw hardware | 16 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | Yes | 8 megapixel | 1 megapixel | 1 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 1080p HD | ? | ? | QVGA (320 x 240) |
| Front Camera | - | 1 megapixel | - | - | - |
| Weight |
3 oz (85g) |
6.31 oz (179g) |
4.76 oz (135g) |
5.7 oz (162g) |
5.78 oz (164g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5" x 2.65" x 0.5" (127 x 67 x 12.7 mm) |
4.61" x 2.56" x 0.47" (117 x 65 x 11.9 mm) |
5.12" x 2.36" x 0.7" (130 x 60 x 17.9 mm) |
5.12" x 2.36" x 0.63" (130 x 60 x 16 mm) |
| Form Factor | Clamshell | Slide | Slab | Swivel | Swivel |
| Platform / OS | (proprietary) | Android | Windows Mobile Standard | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 13 CDMA: 850, 1900 |
CDMA: 850, 1900 |
GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | LTE (Cat 3) | EVDO r0 | EDGE | HSPA 7.2 |
| Features | |||||
| Flashlight | - | - | - | Yes | - |
| GPS / Location | - | n/a | n/a | - | Yes |
| Accessibility | |||||
| Adjustable Text Size | - | n/a | n/a | Yes | Yes |
| Hearing Aid Compatible | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | n/a | n/a | - | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | - | - |
| Alerts | |||||
| Ringer Profiles | - | - | Yes | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | - | - |
| USB | - |
Yes Micro-USB |
Yes Mini-USB |
Yes | Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
- | - | - |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | Yes | Yes |
| Ringer ID | Yes | n/a | n/a | Yes | Yes |
| Voice Dialing | - | n/a | n/a | - | - |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | Yes | Yes |
| Custom Ringtones | Yes | n/a | n/a | Yes | Yes |
| Real-Music Ringers | - | n/a | n/a | Yes | Yes |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | - | - |
| WAP / Web Browser | Yes | n/a | n/a | Yes | Yes |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | - | - |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
- | - | - |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | Yes | Yes |
| EMS / Picture Messaging | Yes | n/a | n/a | - | - |
| Instant Messaging | - | n/a | n/a | Yes | Yes |
| MMS | Yes | n/a | n/a | Yes | Yes |
| Text Messaging Templates | Yes | n/a | n/a | Yes | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | - | Yes | Yes |
| Music Player | - | n/a | n/a | Yes | Yes |
| Stereo Speakers | - | - | Yes | - | - |
| Photo & Video | |||||
| DLNA | - | Yes | - | - | - |
| TV Output | - | Yes | - | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | Yes * | Yes |
| Calculator | Yes | n/a | n/a | - | - |
| Calendar | Yes | n/a | n/a | Yes | Yes |
| To-Do List | Yes | n/a | n/a | Yes | Yes |
| Voice Memo | Yes | n/a | n/a | - | - |
| Software | |||||
| Games | Yes | n/a | n/a | Yes | Yes |
| Java (J2ME) | Yes | n/a | n/a | Yes | Yes |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | n/a | n/a | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Motorola Droid 4 | Motorola Q9m / Q9c | Sharp Sidekick LX 2007 | Sharp Sidekick LX 2009 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Motorola Droid 4 | Motorola Q9m / Q9c | Sharp Sidekick LX 2007 | Sharp Sidekick LX 2009 |
