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| Phone | Samsung SGH-X640 | ZTE Grand XMax | BlackBerry 8820 | Samsung Galaxy S 4 Active |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
6" diag. 16 : 9 |
? |
5" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~245 ppi) LCD (TFT/TFD) |
320 x 240 pixels LCD (TFT/TFD) |
1080 x 1920 pixels (~441 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz |
| Battery | 800 mAh | 3,200 mAh | 1,400 mAh | 2,600 mAh |
| Processor | ? | 1.2 GHz Qualcomm Snapdragon 200 MSM8212 | ? | 1.9 GHz Qualcomm Snapdragon 600 8064T |
| RAM | ? | 1 GB | ? | 2 GB |
| Storage | ? raw hardware | 8 GB | ? raw hardware | 16 GB |
| Main Camera | Yes | 8 megapixel | - | 8 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | 720p HD | - | 1080p HD |
| Front Camera | - | 1 megapixel | - | 2 megapixel |
| Weight |
3 oz (85g) |
6.06 oz (172g) |
4.73 oz (134g) |
5.4 oz (153g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.38" x 3.27" x 0.31" (162 x 83 x 7.9 mm) |
4.49" x 2.6" x 0.55" (114 x 66 x 14 mm) |
5.5" x 2.81" x 0.36" (140 x 71 x 9.1 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | BlackBerry OS | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | HSPA+ 21 | EDGE | LTE (Cat 3) |
| Features | ||||
| Flashlight | - | - | - | Yes |
| GPS / Location | - | n/a | n/a | n/a |
| Ruggedized | - | - | - | Yes |
| Water-Resistant | - | - | - |
Yes IPX7 (snorkeling) |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
- |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Ringer Profiles | - | - | Yes | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Infrared (IR) | - | Yes | - | Yes |
| Mobile Hotspot | - | n/a | n/a | n/a |
| NFC | - | - | - | Yes |
| USB | - |
Yes Micro-USB |
Yes Mini-USB |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a |
| Voice Dialing | - | n/a | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a | n/a |
| Data & Network | ||||
| Data Tethering | - | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen | - |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | - | Yes |
| Music Player | - | n/a | n/a | n/a |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| Miracast | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a |
| To-Do List | Yes | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a |
| Software | ||||
| Games | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a |
| Push-To-Talk | - | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Samsung SGH-X640 | ZTE Grand XMax | BlackBerry 8820 | Samsung Galaxy S 4 Active | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | ZTE Grand XMax | BlackBerry 8820 | Samsung Galaxy S 4 Active |
