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| Phone | Samsung SGH-X640 | ZTE Z331 | Samsung Galaxy S III (global) | Samsung Galaxy J2 / J2 Pure / J2 Dash | Palm Pre Plus (GSM) |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2.4" diag. 4 : 3 |
4.8" diag. 16 : 9 |
5" diag. 16 : 9 |
3.1" diag. 5 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~306 ppi) AMOLED |
540 x 960 pixels (~220 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~186 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz | ? |
| Battery | 800 mAh | 950 mAh | 2,100 mAh | 2,600 mAh | 1,150 mAh |
| Processor | ? | ? | 1.4 GHz Samsung Exynos quad-core | 1.4 GHz Samsung Exynos 7570 | ? |
| RAM | ? | ? | 1 GB | 2 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 16 GB * | 16 GB | ? raw hardware |
| Main Camera | Yes | 3 megapixel | 8 megapixel | 8 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | QCIF (176 x 144) | 1080p HD | 1080p HD | VGA (640 x 480) |
| Front Camera | - | - | 2 megapixel | 5 megapixel | - |
| Weight |
3 oz (85g) |
4 oz (113g) |
4.69 oz (133g) |
5.43 oz (154g) |
4.89 oz (139g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
5.38" x 2.78" x 0.34" (137 x 71 x 8.6 mm) |
5.65" x 2.84" x 0.35" (144 x 72 x 8.9 mm) |
3.9" x 2.3" x 0.67" (99 x 58 x 17 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab | Slide |
| Platform / OS | (proprietary) | (proprietary) | Android | Android | webOS |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | HSDPA 3.6 | HSPA+ 21 | LTE (Cat 4) | HSDPA 1.8 |
| Features | |||||
| Flashlight | - | - | Yes | Yes | - |
| GPS / Location | - | Yes | n/a | n/a | n/a |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M3, T4 (very tele-coil compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | - | Yes | Yes |
| Alerts | |||||
| Extra Display | - | Yes | - | - | - |
| Ringer Profiles | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| MirrorLink | - | - | Yes | - | - |
| Mobile Hotspot | - | - | n/a | n/a | n/a |
| NFC | - | - | Yes | - | - |
| USB | - |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | - | Yes |
Yes 4 (802.11 b,g,n) |
Yes 802.11 b,g |
| Contacts | |||||
| Picture ID | Yes | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a | n/a |
| Voice Dialing | - | - | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a | n/a |
| Real-Music Ringers | - | Yes | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | Yes | n/a | n/a | n/a |
| WAP / Web Browser | Yes | Yes | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | 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 | - | Yes | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | - | n/a | n/a | n/a |
| Instant Messaging | - | Yes | n/a | n/a | n/a |
| MMS | Yes | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | Yes | n/a | n/a | n/a |
| Music | |||||
| FM Radio | - | - | Yes | - | - |
| Headphone Jack (3.5mm) | - | - | Yes | Yes | Yes |
| Music Player | - | Yes | n/a | n/a | n/a |
| Photo & Video | |||||
| DLNA | - | - | Yes | - | - |
| TV Output | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a | n/a |
| To-Do List | Yes | - | n/a | n/a | n/a |
| Voice Memo | Yes | Yes | n/a | n/a | n/a |
| Software | |||||
| Games | Yes | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | Yes | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | - | Yes | - | - |
| Headset Jack (2.5 mm) | Yes | - | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | ZTE Z331 | Samsung Galaxy S III (global) | Samsung Galaxy J2 / J2 Pure / J2 Dash | Palm Pre Plus (GSM) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | ZTE Z331 | Samsung Galaxy S III (global) | Samsung Galaxy J2 / J2 Pure / J2 Dash | Palm Pre Plus (GSM) |
