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| Phone | Motorola ROKR E2 | Samsung SCH-A990 | Motorola EM330 / EM28 | Samsung DoubleTime |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
1.8" diag. 4 : 3 |
3.2" diag. 5 : 3 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
128 x 160 pixels (~114 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | ? | 1,000 mAh | 940 mAh | 1,200 mAh |
| Processor | ? | ? | ? | 600 MHz Qualcomm |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | 3 megapixel | 1 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | ? | ? | QVGA (320 x 240) |
| Front Camera | - | - | - | - |
| Weight |
3.77 oz (107g) |
4.4 oz (125g) |
3.17 oz (90g) |
5.22 oz (148g) |
| Dimensions |
4.17" x 1.95" x 0.71" (106 x 50 x 18 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
3.71" x 1.95" x 0.68" (94 x 50 x 17.4 mm) |
4.45" x 2.44" x 0.59" (113 x 62 x 15 mm) |
| Form Factor | Slab | Clamshell | Clamshell | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 850, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EDGE | EVDO r0 | EDGE | HSPA 7.2 |
| Features | ||||
| Flashlight | - | Yes | - | - |
| GPS / Location | - | Yes | - | n/a |
| Accessibility | ||||
| Hearing Aid Compatible | - |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | Yes | - |
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | - | - | n/a |
| USB | Yes | Yes |
Yes Mini-USB |
Yes Micro-USB |
| Wi-Fi | - | - | - |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | - | n/a |
| Ringer ID | Yes | Yes | - | n/a |
| Voice Dialing | Yes | Yes | - | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a |
| Real-Music Ringers | - | Yes | Yes | n/a |
| Data & Network | ||||
| Data Tethering | Yes | Yes | - | n/a |
| WAP / Web Browser | Yes | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - | - | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | - | - | n/a |
| EMS / Picture Messaging | - | Yes | Yes | n/a |
| Instant Messaging | - | - | - | n/a |
| MMS | Yes | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | Yes | n/a |
| Music | ||||
| FM Radio | Yes | - | Yes | - |
| Headphone Jack (3.5mm) | Yes | - | Yes | Yes |
| Music Player | Yes | Yes | Yes | n/a |
| Stereo Speakers | - | Yes | - | - |
| Photo & Video | ||||
| TV Output | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | n/a |
| Calendar | Yes | Yes | Yes | n/a |
| To-Do List | Yes | - | - | n/a |
| Voice Memo | Yes | Yes | - | n/a |
| Software | ||||
| BREW | - | Yes | - | n/a |
| Games | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | - | Yes | n/a |
| Voice | ||||
| Speaker Phone | Yes | Yes | Yes | Yes |
| Motorola ROKR E2 | Samsung SCH-A990 | Motorola EM330 / EM28 | Samsung DoubleTime | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Motorola ROKR E2 | Samsung SCH-A990 | Motorola EM330 / EM28 | Samsung DoubleTime |
