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| Phone | Samsung SGH-X640 | Samsung SCH-U740 Alias | BlackBerry 7750 | ZTE Blade Max 3 / Max Blue | Casio G'zOne Rock |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? | ? |
6" diag. 16 : 9 |
2.1" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
240 x 240 pixels LCD (Color) |
1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~190 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz | ? |
| Battery | 800 mAh | ? | ? | 4,000 mAh | 1,150 mAh |
| Processor | ? | ? | ? | 2 GHz Qualcomm Snapdragon 625 (MSM8953) | ? |
| RAM | ? | ? | ? | 2 GB | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 16 GB | ? raw hardware |
| Main Camera | Yes | 1 megapixel | - | 13 megapixel | 2 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | ? | - | 4K UHD | ? |
| Front Camera | - | - | - | 5 megapixel | - |
| Weight |
3 oz (85g) |
3.56 oz (101g) |
5.01 oz (142g) |
6.34 oz (180g) |
4.4 oz (125g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.84" x 2.04" x 0.63" (98 x 52 x 16 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
6.49" x 3.3" x 0.35" (165 x 84 x 8.9 mm) |
4.1" x 2" x 0.9" (104 x 51 x 22.9 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | BlackBerry OS | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 12, 13, 25 WCDMA: 2, 4, 5 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | GPRS | EVDO r0 | 1xRTT | LTE (Cat 4) | EVDO rA |
| Features | |||||
| Fingerprint Reader | - | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | - | Yes | Yes |
| GPS / Location | - | Yes | n/a | n/a | Yes |
| Ruggedized | - | - | - | - | Yes |
| Water-Resistant | - | - | - | - | Yes |
| Accessibility | |||||
| Hearing Aid Compatible | - |
Yes M4 (very compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | - | Yes | - | - | Yes |
| Ringer Profiles | - | - | Yes | - | - |
| Connectivity | |||||
| Bluetooth | - | Yes | - | Yes | Yes |
| USB | - | Yes | Yes |
Yes USB Type C |
Yes |
| Wi-Fi | - | - | - |
Yes 5 (802.11 ac,b,g,n) |
- |
| Contacts | |||||
| Picture ID | Yes | Yes | n/a | n/a | Yes |
| Ringer ID | Yes | Yes | n/a | n/a | Yes |
| Voice Dialing | - | Yes | n/a | n/a | Yes |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | n/a | Yes |
| Real-Music Ringers | - | - | n/a | n/a | Yes |
| Data & Network | |||||
| Data Tethering | - | Yes | n/a | n/a | Yes |
| WAP / Web Browser | Yes | Yes | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | Yes | - | - |
| Touch Screen | - | - | - |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | - | Yes | - | Yes | Yes |
| Messaging | |||||
| Email Client | - | Yes | n/a | n/a | Yes |
| EMS / Picture Messaging | Yes | - | n/a | n/a | - |
| Instant Messaging | - | Yes | n/a | n/a | Yes |
| MMS | Yes | Yes | n/a | n/a | Yes |
| Text Messaging Templates | Yes | Yes | n/a | n/a | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | - | Yes | - |
| Music Player | - | Yes | n/a | n/a | Yes |
| Power | |||||
| Fast Charging | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | Yes |
| Calculator | Yes | Yes | n/a | n/a | Yes |
| Calendar | Yes | Yes | n/a | n/a | Yes |
| To-Do List | Yes | - | n/a | n/a | - |
| Voice Memo | Yes | Yes | n/a | n/a | Yes |
| Software | |||||
| BREW | - | Yes | n/a | n/a | Yes |
| Games | Yes | Yes | n/a | n/a | Yes |
| Java (J2ME) | Yes | - | n/a | n/a | - |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | - | n/a | n/a | Yes |
| Push-To-Talk | - | - | - | - | Yes |
| Speaker Phone | Yes | Yes | - | Yes | Yes |
| Samsung SGH-X640 | Samsung SCH-U740 Alias | BlackBerry 7750 | ZTE Blade Max 3 / Max Blue | Casio G'zOne Rock | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung SCH-U740 Alias | BlackBerry 7750 | ZTE Blade Max 3 / Max Blue | Casio G'zOne Rock |
