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| Phone | Samsung SCH-A310 | Ericsson R278d | BlackBerry Storm2 9550 | Sony Ericsson K850 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
3.3" diag. 4 : 3 |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
128 x 128 pixels LCD (Grayscale) |
101 x 40 pixels |
360 x 480 pixels (~185 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | ? | ? | 1,400 mAh | ? |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | 3 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | ? | ? |
| Front Camera | - | - | - | - |
| Weight |
3.2 oz (91g) |
9.28 oz (263g) |
5.64 oz (160g) |
4.2 oz (119g) |
| Dimensions |
3.43" x 1.89" x 0.87" (87 x 48 x 22.1 mm) |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
4.43" x 2.45" x 0.55" (113 x 62 x 14 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | BlackBerry OS | (proprietary) |
| Network Bands |
CDMA: 850, 1900 AMPS: 850 |
TDMA: 850, 1900 AMPS: 850 |
WCDMA: 1 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | 1xRTT | - | EVDO rA | HSDPA 3.6 |
| Features | ||||
| GPS / Location | Yes | - | n/a | - |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | - |
| Hearing Aid Compatible | - | - |
Yes M3 (mostly compatible) |
- |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | - | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | - | Yes | Yes | Yes |
| Connectivity | ||||
| Bluetooth | - | - | Yes | Yes |
| USB | Yes | - | Yes | Yes |
| Wi-Fi | - | - |
Yes 802.11 b,g |
- |
| Contacts | ||||
| Picture ID | - | - | n/a | Yes |
| Ringer ID | - | - | n/a | Yes |
| Voice Dialing | Yes | - | n/a | Yes |
| Customization | ||||
| Changeable Body Plates | Yes | - | - | - |
| Custom Graphics | - | - | n/a | Yes |
| Custom Ringtones | - | Yes | n/a | Yes |
| Real-Music Ringers | - | - | n/a | Yes |
| Data & Network | ||||
| Data Tethering | Yes | Yes | n/a | Yes |
| WAP / Web Browser | Yes | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | - | - | Yes | Yes |
| Messaging | ||||
| Email Client | - | - | n/a | Yes |
| Instant Messaging | - | - | n/a | - |
| MMS | - | - | n/a | Yes |
| Text Messaging Templates | - | - | n/a | Yes |
| Music | ||||
| FM Radio | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | - | - | n/a | Yes |
| Photo & Video | ||||
| Video Calling | - | - | n/a | Yes * |
| Productivity | ||||
| Alarm | - | Yes | n/a | Yes |
| Calculator | - | - | n/a | Yes |
| Calendar | Yes | - | n/a | Yes |
| To-Do List | - | - | n/a | Yes |
| Voice Memo | Yes | - | n/a | Yes |
| Software | ||||
| Games | Yes | - | n/a | Yes |
| Java (J2ME) | - | - | n/a | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | - | n/a | - |
| Speaker Phone | - | - | Yes | Yes |
| * Some versions only | ||||
| Samsung SCH-A310 | Ericsson R278d | BlackBerry Storm2 9550 | Sony Ericsson K850 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A310 | Ericsson R278d | BlackBerry Storm2 9550 | Sony Ericsson K850 |
