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| Phone | Samsung SGH-X640 | Samsung Galaxy S II Skyrocket | ZTE Prestige | Alcatel 665 | Casio G'zOne Boulder |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
4.5" diag. 5 : 3 |
5" diag. 16 : 9 |
1.8" diag. 4 : 3 |
2" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
480 x 800 pixels (~207 ppi) AMOLED |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
128 x 160 pixels (~116 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? | ? |
| Battery | 800 mAh | 1,850 mAh | 2,300 mAh | 650 mAh | 810 mAh |
| Processor | ? | 1.5 GHz Qualcomm Snapdragon S3 APQ8060 | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? | ? |
| RAM | ? | 1 GB | 1 GB | 16 MB | ? |
| Storage | ? raw hardware | 16 GB | 8 GB | 32 MB | ? raw hardware |
| Main Camera | Yes | 8 megapixel | 5 megapixel | 2 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 1080p HD | 720p HD | QCIF (176 x 144) | ? |
| Front Camera | - | 2 megapixel | 2 megapixel | - | - |
| Weight |
3 oz (85g) |
4.71 oz (133g) |
5.83 oz (165g) |
2.72 oz (77g) |
4.9 oz (139g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.12" x 2.72" x 0.35" (130 x 69 x 9 mm) |
5.73" x 2.87" x 0.41" (146 x 73 x 10.3 mm) |
3.78" x 1.89" x 0.66" (96 x 48 x 16.8 mm) |
3.9" x 2" x 0.9" (99 x 51 x 22.9 mm) |
| Form Factor | Clamshell | Slab | Slab | Clamshell | Clamshell |
| Platform / OS | (proprietary) | Android | Android | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 4, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 25, 26, 41 WCDMA: 2, 5 CDMA: 800, 850, 1900 GSM: 850, 1900 |
GSM: 850, 1900 |
CDMA: 850, 1900 |
| Data Technology | GPRS | LTE (Cat 3) | LTE (Cat 4) | - | EVDO rA |
| Features | |||||
| Flashlight | - | - | Yes | - | Yes |
| GPS / Location | - | n/a | n/a | - | Yes |
| Ruggedized | - | - | - | - | Yes |
| Water-Resistant | - | - | - | - | Yes |
| Accessibility | |||||
| Adjustable Text Size | - | n/a | n/a | - | - |
| Hearing Aid Compatible | - | Yes | Yes | Yes | Yes |
| Multiple Languages | Yes | n/a | n/a | Yes | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | - | Yes |
| Alerts | |||||
| Extra Display | - | - | - | Yes | Yes |
| Ringer Profiles | - | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | - | - |
| NFC | - | Yes | - | - | - |
| USB | - |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 4 (802.11 a,b,g,n) |
Yes | - | - |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | Yes | Yes |
| Ringer ID | Yes | n/a | n/a | Yes | Yes |
| Voice Dialing | - | n/a | n/a | - | Yes |
| Customization | |||||
| Changeable Body Plates | - | - | - | - | Yes |
| Custom Graphics | Yes | n/a | n/a | Yes | Yes |
| Custom Ringtones | Yes | n/a | n/a | Yes | Yes |
| Real-Music Ringers | - | n/a | n/a | Yes | - |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | - | Yes |
| WAP / Web Browser | Yes | n/a | n/a | Yes | Yes |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | Yes | Yes | - | - |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | - | - |
| EMS / Picture Messaging | Yes | n/a | n/a | - | Yes |
| Instant Messaging | - | n/a | n/a | Yes | - |
| MMS | Yes | n/a | n/a | Yes | Yes |
| Text Messaging Templates | Yes | n/a | n/a | Yes | Yes |
| Music | |||||
| FM Radio | - | - | Yes | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes | - |
| Music Player | - | n/a | n/a | Yes | Yes |
| Photo & Video | |||||
| DLNA | - | Yes | - | - | - |
| TV Output | - | Yes | - | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | Yes | Yes |
| Calculator | Yes | n/a | n/a | Yes | Yes |
| Calendar | Yes | n/a | n/a | Yes | Yes |
| To-Do List | Yes | n/a | n/a | - | - |
| Voice Memo | Yes | n/a | n/a | Yes | Yes |
| Software | |||||
| BREW | - | n/a | n/a | - | Yes |
| Games | Yes | n/a | n/a | Yes | Yes |
| Java (J2ME) | Yes | n/a | n/a | Yes | - |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | n/a | n/a | - | - |
| Push-To-Talk | - | - | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | Samsung Galaxy S II Skyrocket | ZTE Prestige | Alcatel 665 | Casio G'zOne Boulder | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung Galaxy S II Skyrocket | ZTE Prestige | Alcatel 665 | Casio G'zOne Boulder |
