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| Phone | Samsung SGH-X640 | AT&T Vista | BlackBerry Classic (GSM) | Nokia N78 | BlackBerry Bold 9790 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Not yet released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
5.5" diag. 18 : 9 |
3.5" diag. 1 : 1 |
2.4" diag. 4 : 3 |
2.5" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
720 x 1440 pixels (~293 ppi) LCD (TFT/TFD) |
720 x 720 pixels (~291 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
480 x 360 pixels (~245 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | ? | ? |
| Battery | 800 mAh | 2,450 mAh | 2,515 mAh | 1,200 mAh | ? |
| Processor | ? | 2 GHz MediaTek Helio A22 (MT6761V) | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 | 369 MHz ARM 11 | 1 GHz Marvel Tavor MG1 |
| RAM | ? | 3 GB | 2 GB | ? | 768 MB |
| Storage | ? raw hardware | 32 GB | 16 GB | ? raw hardware | 8 GB |
| Main Camera | Yes | 8 megapixel | 8 megapixel | 3 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 1080p HD | 1080p HD | VGA (640 x 480) | VGA (640 x 480) |
| Front Camera | - | 5 megapixel | 2 megapixel | - | - |
| Weight |
3 oz (85g) |
5.51 oz (156g) |
6.28 oz (178g) |
3.59 oz (102g) |
3.77 oz (107g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm) |
5.16" x 2.85" x 0.4" (131 x 72 x 10.2 mm) |
4.45" x 1.93" x 0.59" (113 x 49 x 15.1 mm) |
4.33" x 2.36" x 0.45" (110 x 60 x 11.4 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | BlackBerry 10 | S60 (Symbian) | BlackBerry OS |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8 |
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| Data Technology | GPRS | LTE (Cat 4) | LTE (Cat 3) | HSDPA 3.6 | HSPA 7.2 |
| Features | |||||
| Flashlight | - | Yes | - | - | - |
| GPS / Location | - | n/a | n/a | n/a | n/a |
| Accessibility | |||||
| Adjustable Text Size | - | n/a | n/a | n/a | n/a |
| Hearing Aid Compatible | - | Yes | Yes | - | - |
| Multiple Languages | Yes | n/a | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | - | - |
| Alerts | |||||
| Ringer Profiles | - | - | Yes | Yes | Yes |
| Connectivity | |||||
| Bluetooth |
- |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| Mobile Hotspot | - | n/a | n/a | n/a | n/a |
| NFC | - | - | Yes | - | Yes |
| USB | - |
Yes USB Type C |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | Yes |
Yes 4 (802.11 a,b,g,n) |
Yes 802.11 b,g |
Yes 4 (802.11 a,b,g,n) |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a | n/a |
| Voice Dialing | - | n/a | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - | Yes |
| Touch Screen | - | Yes | Yes | - | Yes |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a | n/a |
| Music | |||||
| FM Radio | - | - | Yes | Yes | - |
| FM Transmitter | - | n/a | n/a | n/a | n/a |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes | Yes |
| Music Player | - | n/a | n/a | n/a | n/a |
| Stereo Speakers | - | - | - | Yes | - |
| Photo & Video | |||||
| DLNA | - | - | Yes | - | - |
| Miracast | - | - | Yes | - | - |
| TV Output | - | - | Yes | Yes | - |
| Video Calling | - | n/a | n/a | n/a | n/a |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a | n/a |
| To-Do List | Yes | n/a | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a | n/a |
| Software | |||||
| Games | Yes | n/a | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | Yes | - | - | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a | n/a |
| Push-To-Talk | - | - | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | AT&T Vista | BlackBerry Classic (GSM) | Nokia N78 | BlackBerry Bold 9790 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | AT&T Vista | BlackBerry Classic (GSM) | Nokia N78 | BlackBerry Bold 9790 |
