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| Phone | Samsung Galaxy Attain 4G | Samsung SGH-i250 | Ericsson T28 World | Casio Exilim C721 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Not yet released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
3.5" diag. 5 : 3 |
? | ? |
2.3" diag. 4 : 3 |
| Display Resolution & Type |
320 x 480 pixels (~165 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
? |
240 x 320 pixels (~174 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? | ? |
| Battery | 1,650 mAh | ? | 500 mAh | 920 mAh |
| Processor | ? | ? | ? | ? |
| RAM | 512 MB | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 3 megapixel | 1 megapixel | - | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | WVGA / 480p | ? | - | QVGA (320 x 240) |
| Front Camera | 1 megapixel | - | - | - |
| Weight |
4.2 oz (119g) |
4.59 oz (130g) |
3.14 oz (89g) |
4.48 oz (127g) |
| Dimensions |
4.57" x 2.38" x 0.46" (116 x 60 x 11.7 mm) |
3.7" x 1.97" x 1.02" (94 x 50 x 25.9 mm) |
3.9" x 2" x 0.6" (99 x 51 x 15.2 mm) |
4.06" x 1.97" x 0.78" (103 x 50 x 19.9 mm) |
| Form Factor | Slab | Clamshell | Flip | Clamshell |
| Platform / OS | Android | Windows Mobile Standard | (proprietary) | (proprietary) |
| Network Bands |
4G LTE: 2, 4 CDMA: 850, 1700, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1900 |
CDMA: 850, 1900 |
| Data Technology | LTE (Cat 3) | GPRS | - | EVDO rA |
| Features | ||||
| Flashlight | - | - | - | Yes |
| GPS / Location | n/a | n/a | - | Yes |
| Ruggedized | - | - | - | Yes |
| Water-Resistant | - | - | - | Yes |
| Accessibility | ||||
| Adjustable Text Size | n/a | n/a | - | Yes |
| Hearing Aid Compatible | Yes | - | - | Yes |
| Multiple Languages | n/a | n/a | - | Yes |
| TTY/TDD (Digital) | Yes | - | - | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | Yes |
| Ringer Profiles | - | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth |
Yes Classic Audio |
Yes | - |
Yes Classic Audio |
| USB |
Yes Micro-USB |
- | - | Yes |
| Wi-Fi | Yes | - | - | - |
| Contacts | ||||
| Picture ID | n/a | n/a | - | Yes |
| Ringer ID | n/a | n/a | - | Yes |
| Voice Dialing | n/a | n/a | Yes | Yes |
| Customization | ||||
| Custom Graphics | n/a | n/a | - | Yes |
| Custom Ringtones | n/a | n/a | Yes | Yes |
| Real-Music Ringers | n/a | n/a | - | Yes |
| Data & Network | ||||
| Data Tethering | n/a | n/a | Yes | Yes |
| WAP / Web Browser | n/a | n/a | - | Yes |
| Input | ||||
| Predictive Text Entry | n/a | n/a | - | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | Yes | - | - | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | Yes |
| Messaging | ||||
| Email Client | n/a | n/a | - | - |
| EMS / Picture Messaging | n/a | n/a | - | Yes |
| Instant Messaging | n/a | n/a | - | Yes |
| MMS | n/a | n/a | - | Yes |
| Text Messaging Templates | n/a | n/a | - | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Music Player | n/a | n/a | - | Yes |
| Photo & Video | ||||
| DLNA | Yes | - | - | - |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | Yes |
| Calculator | n/a | n/a | Yes | Yes |
| Calendar | n/a | n/a | - | Yes |
| To-Do List | n/a | n/a | - | Yes |
| Voice Memo | n/a | n/a | - | Yes |
| Software | ||||
| BREW | n/a | n/a | - | Yes |
| Games | n/a | n/a | Yes | Yes |
| Java (J2ME) | n/a | n/a | - | - |
| Voice | ||||
| Speaker Phone | Yes | - | - | Yes |
| Samsung Galaxy Attain 4G | Samsung SGH-i250 | Ericsson T28 World | Casio Exilim C721 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy Attain 4G | Samsung SGH-i250 | Ericsson T28 World | Casio Exilim C721 |
