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| Phone | Samsung SGH-X640 | Samsung Galaxy S6 (GSM) | BlackBerry Curve 3G 9330 | Sony Ericsson Xperia Play 4G (GSM) | ZTE Blade Vantage |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
5.1" diag. 16 : 9 |
2.5" diag. 4 : 3 |
4" diag. 16 : 9 |
5" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
1440 x 2560 pixels (~576 ppi) AMOLED |
320 x 240 pixels (~160 ppi) LCD (TFT/TFD) |
480 x 854 pixels (~245 ppi) LCD (TFT/TFD) |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz | 60 Hz |
| Battery | 800 mAh | 2,550 mAh | 1,150 mAh | 1,500 mAh | 2,500 mAh |
| Processor | ? | 2.1 GHz Samsung Exynos 7420 | ? | 1 GHz Qualcomm Snapdragon S2 MSM8255 | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) |
| RAM | ? | 3 GB | ? | ? | 2 GB |
| Storage | ? raw hardware | 32 GB * | ? raw hardware | ? raw hardware | 16 GB |
| Main Camera | Yes | 16 megapixel | 2 megapixel | 5 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 4K UHD | ? | WVGA / 480p | 720p HD |
| Front Camera | - | 5 megapixel | - | Yes | 2 megapixel |
| Weight |
3 oz (85g) |
4.87 oz (138g) |
3.7 oz (105g) |
6.17 oz (175g) |
5.29 oz (150g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm) |
4.29" x 2.36" x 0.55" (109 x 60 x 14 mm) |
4.68" x 2.44" x 0.63" (119 x 62 x 16 mm) |
5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | BlackBerry OS | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 13 |
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| Data Technology | GPRS | LTE (Cat 6) | EVDO r0 | HSPA 7.2 | LTE (Cat 4) |
| Features | |||||
| Fingerprint Reader | - | Yes | - | - | - |
| Flashlight | - | Yes | - | - | Yes |
| GPS / Location | - | n/a | n/a | n/a | n/a |
| VR-ready | - | Yes | - | - | - |
| Accessibility | |||||
| Adjustable Text Size | - | n/a | n/a | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | - | Yes |
| Alerts | |||||
| Ringer Profiles | - | - | Yes | - | - |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | Yes | - | - | - |
| MirrorLink | - | Yes | - | - | - |
| Mobile Hotspot | - | n/a | n/a | n/a | n/a |
| NFC | - | Yes | - | - | - |
| USB | - |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 802.11 b,g |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 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 | - | - |
| Touch Screen | - |
Yes Capacitive |
- |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | - | 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 | |||||
| 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 | - | Yes | - |
| Miracast | - | Yes | - | - | - |
| TV Output | - | Yes | - | - | - |
| Power | |||||
| Fast Charging | - | Yes | - | - | - |
| Wireless Charging | - | Yes | - | - | - |
| 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 | - | - | Yes |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | Samsung Galaxy S6 (GSM) | BlackBerry Curve 3G 9330 | Sony Ericsson Xperia Play 4G (GSM) | ZTE Blade Vantage | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung Galaxy S6 (GSM) | BlackBerry Curve 3G 9330 | Sony Ericsson Xperia Play 4G (GSM) | ZTE Blade Vantage |
