Compare Phones
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| Phone | Samsung SGH-X640 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Cricket Influence / AT&T Maestro Plus | Kyocera DuraXE Epic / DuraXA Equip | BlackBerry Curve 8300 |
| Current U.S. Carriers | (none) | (none) | (none) | US Cellular | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
5" diag. 16 : 9 |
6.2" diag. 19 : 9 |
2.6" diag. 4 : 3 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
540 x 960 pixels (~220 ppi) LCD (TFT/TFD) |
720 x 1520 pixels (~271 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
320 x 240 pixels LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? | ? |
| Battery | 800 mAh | 2,600 mAh | 3,300 mAh | 1,770 mAh | ? |
| Processor | ? | 1.4 GHz Samsung Exynos 7570 | 1.8 GHz Qualcomm Snapdragon 460 | 1.2 GHz Qualcomm Snapdragon 215 | ? |
| RAM | ? | 2 GB | 3 GB | 2 GB | ? |
| Storage | ? raw hardware | 16 GB | 32 GB | 16 GB | ? raw hardware |
| Main Camera | Yes | 8 megapixel | 13 megapixel | 5 megapixel | 2 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 1080p HD | 1080p HD | 720p HD | - |
| Front Camera | - | 5 megapixel | 5 megapixel | - | - |
| Weight |
3 oz (85g) |
5.43 oz (154g) |
6.52 oz (185g) |
6.8 oz (193g) |
3.92 oz (111g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.65" x 2.84" x 0.35" (144 x 72 x 8.9 mm) |
6.28" x 2.99" x 0.35" (160 x 76 x 8.9 mm) |
4.36" x 2.22" x 1.07" (111 x 56 x 27.2 mm) |
4.2" x 2.36" x 0.61" (107 x 60 x 15.5 mm) |
| Form Factor | Clamshell | Slab | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | Android | Android | (proprietary) | BlackBerry OS |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 14, 30 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 14, 66 WCDMA: 1, 2, 4, 5 |
GSM: 850, 900, 1800, 1900 |
|
| Data Technology | GPRS | LTE (Cat 4) | LTE (Cat 13) | LTE (Cat 4) | EDGE |
| Features | |||||
| Barometer | - | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
- | - |
| Flashlight | - | Yes | Yes | Yes | - |
| GPS / Location | - | n/a | n/a | Yes | n/a |
| Ruggedized | - | - | - | Yes | - |
| Water-Resistant | - | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | |||||
| Adjustable Text Size | - | n/a | n/a | Yes | n/a |
| Hearing Aid Compatible | - | Yes | Yes | Yes | - |
| Multiple Languages | Yes | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | - | - | - | Yes | - |
| Ringer Profiles | - | - | - | - | Yes |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | Yes | n/a |
| USB | - |
Yes Micro-USB |
Yes USB Type C |
Yes USB Type C |
Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 a,b,g,n) |
- |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | Yes | n/a |
| Ringer ID | Yes | n/a | n/a | Yes | n/a |
| Voice Dialing | - | n/a | n/a | Yes | n/a |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | Yes | n/a |
| Custom Ringtones | Yes | n/a | n/a | Yes | n/a |
| Real-Music Ringers | - | n/a | n/a | Yes | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | Yes | n/a |
| WAP / Web Browser | Yes | n/a | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | - | Yes |
| Touch Screen | - | Yes | Yes | - | - |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | Yes | 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 | Yes | n/a |
| Text Messaging Templates | Yes | n/a | n/a | Yes | n/a |
| Music | |||||
| FM Radio | - | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes | Yes |
| Music Player | - | n/a | n/a | Yes | n/a |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | Yes | n/a |
| Calculator | Yes | n/a | n/a | Yes | n/a |
| Calendar | Yes | n/a | n/a | Yes | n/a |
| To-Do List | Yes | n/a | n/a | - | n/a |
| Voice Memo | Yes | n/a | n/a | Yes | n/a |
| Software | |||||
| Games | Yes | n/a | n/a | - | n/a |
| Java (J2ME) | Yes | n/a | n/a | - | n/a |
| Voice | |||||
| HD Voice | - | - | Yes | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | - | n/a |
| Push-To-Talk | - | - | - | Yes | Yes * |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Cricket Influence / AT&T Maestro Plus | Kyocera DuraXE Epic / DuraXA Equip | BlackBerry Curve 8300 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung Galaxy J2 / J2 Pure / J2 Dash | Cricket Influence / AT&T Maestro Plus | Kyocera DuraXE Epic / DuraXA Equip | BlackBerry Curve 8300 |
