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| Phone | Samsung SGH-X640 | Sharp Sidekick LX 2009 | Sony Xperia Z Ultra | Samsung Galaxy XCover Pro |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Not yet released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
3.2" diag. 16 : 9 |
6.4" diag. 16 : 9 |
6.3" diag. 19.5 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
854 x 480 pixels (~306 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~344 ppi) LCD (TFT/TFD) |
1080 x 2340 pixels (~409 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz |
| Battery | 800 mAh | 1,250 mAh | 3,050 mAh | 4,050 mAh |
| Processor | ? | ? | 2.2 GHz Qualcomm Snapdragon 800 MSM8974 | 2 GHz Samsung Exynos 9611 |
| RAM | ? | ? | 2 GB | 4 GB |
| Storage | ? raw hardware | ? raw hardware | 16 GB | 64 GB |
| Main Camera | Yes | 3 megapixel | 8 megapixel | 25 megapixel |
| Wide Camera | - | - | - | 8 megapixel |
| Tele Camera | - | - | - | - |
| Video Capture | - | QVGA (320 x 240) | 1080p HD | 1080p HD |
| Front Camera | - | - | 2 megapixel | 13 megapixel |
| Weight |
3 oz (85g) |
5.78 oz (164g) |
7.48 oz (212g) |
7.69 oz (218g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.12" x 2.36" x 0.63" (130 x 60 x 16 mm) |
7.06" x 3.63" x 0.26" (179 x 92 x 6.5 mm) |
6.3" x 3.02" x 0.39" (160 x 77 x 9.9 mm) |
| Form Factor | Clamshell | Swivel | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 28, 29, 38, 40, 41, 48, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | HSPA 7.2 | LTE (Cat 4) | LTE (Cat 11) |
| Features | ||||
| Fingerprint Reader | - | - | - |
Yes stand-alone |
| Flashlight | - | - | - | Yes |
| GPS / Location | - | Yes | n/a | n/a |
| Ruggedized | - | - | Yes | Yes |
| Water-Resistant | - | - | Yes |
Yes IPX8 (SCUBA) |
| Accessibility | ||||
| Adjustable Text Size | - | Yes | n/a | n/a |
| Hearing Aid Compatible | - | Yes | Yes | Yes |
| Multiple Languages | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | - | - | Yes |
| Alerts | ||||
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| MirrorLink | - | - | Yes | - |
| Mobile Hotspot | - | - | n/a | n/a |
| NFC | - | - | Yes | Yes |
| USB | - | Yes |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi | - | - | Yes |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a |
| Voice Dialing | - | - | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a |
| Real-Music Ringers | - | Yes | n/a | n/a |
| Data & Network | ||||
| Data Tethering | - | - | n/a | n/a |
| Dual-SIM | - | - | - | Yes * |
| WAP / Web Browser | Yes | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | - | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - | - | Yes | Yes |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | Yes | n/a | n/a |
| EMS / Picture Messaging | Yes | - | n/a | n/a |
| Instant Messaging | - | Yes | n/a | n/a |
| MMS | Yes | Yes | n/a | n/a |
| Text Messaging Templates | Yes | Yes | n/a | n/a |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Music Player | - | Yes | n/a | n/a |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Miracast | - | - | Yes | - |
| TV Output | - | - | Yes | - |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | n/a |
| Calculator | Yes | - | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a |
| To-Do List | Yes | Yes | n/a | n/a |
| Voice Memo | Yes | - | n/a | n/a |
| Software | ||||
| Games | Yes | Yes | n/a | n/a |
| Java (J2ME) | Yes | Yes | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Headset Jack (2.5 mm) | Yes | - | n/a | n/a |
| Push-To-Talk | - | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Samsung SGH-X640 | Sharp Sidekick LX 2009 | Sony Xperia Z Ultra | Samsung Galaxy XCover Pro | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Sharp Sidekick LX 2009 | Sony Xperia Z Ultra | Samsung Galaxy XCover Pro |
