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| Phone | Siemens SL55 | Siemens M75 | Motorola i450 / i455 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Not yet released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? | ? | ? |
| Display Resolution & Type |
101 x 80 pixels LCD (STN) |
132 x 176 pixels LCD (TFT/TFD) |
130 x 130 pixels LCD (STN) |
| Display Refresh | ? | ? | ? |
| Battery | 500 mAh | 750 mAh | ? |
| Processor | ? | ? | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | 1 megapixel | - |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | ? | - |
| Front Camera | - | - | - |
| Weight |
2.79 oz (79g) |
3.88 oz (110g) |
4.5 oz (128g) |
| Dimensions |
3.21" x 1.75" x 0.86" (82 x 44 x 21.8 mm) |
4.35" x 2.03" x 0.82" (110 x 52 x 20.8 mm) |
3.5" x 2" x 1.1" (89 x 51 x 27.9 mm) |
| Form Factor | Slide | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
iDEN: 800 |
| Data Technology | GPRS | GPRS | - |
| Features | |||
| GPS / Location | - | - | Yes |
| Ruggedized | - | Yes | - |
| Accessibility | |||
| Hearing Aid Compatible | - | - |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | - | Yes |
| Alerts | |||
| Extra Display | - | - | Yes |
| Ringer Profiles | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth | - | Yes | - |
| Infrared (IR) | Yes | Yes | - |
| USB | - | Yes | Yes |
| Contacts | |||
| Picture ID | Yes | Yes | Yes |
| Ringer ID | Yes | Yes | Yes |
| Voice Dialing | Yes | - | Yes |
| Customization | |||
| Custom Graphics | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes |
| Real-Music Ringers | - | - | Yes * |
| Data & Network | |||
| Data Tethering | Yes | Yes | Yes |
| WAP / Web Browser | Yes | Yes | Yes |
| Input | |||
| Predictive Text Entry | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes |
| Memory | |||
| Memory Card Slot | - | Yes | - |
| Messaging | |||
| Email Client | Yes | Yes | - |
| EMS / Picture Messaging | Yes | Yes | - |
| MMS | Yes | Yes | Yes |
| Text Messaging Templates | Yes | - | Yes |
| Music | |||
| Music Player | - | Yes | - |
| Productivity | |||
| Alarm | Yes | Yes | - |
| Calculator | Yes | Yes | - |
| Calendar | Yes | Yes | Yes |
| To-Do List | Yes | Yes | - |
| Voice Memo | Yes | Yes | Yes |
| Software | |||
| Games | Yes | Yes | Yes |
| Java (J2ME) | Yes | Yes | Yes |
| Voice | |||
| Headset Jack (2.5 mm) | - | - | Yes |
| Push-To-Talk | - | Yes | Yes |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Siemens SL55 | Siemens M75 | Motorola i450 / i455 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens SL55 | Siemens M75 | Motorola i450 / i455 |
