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| Phone | Samsung SGH-X640 | Nokia Lumia 900 | Motorola i450 / i455 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
4.3" diag. 5 : 3 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
480 x 800 pixels (~217 ppi) AMOLED |
130 x 130 pixels LCD (STN) |
| Display Refresh | ? | ? | ? |
| Battery | 800 mAh | 1,830 mAh | ? |
| Processor | ? | 1.4 GHz Qualcomm S2 APQ8055 | ? |
| RAM | ? | 512 MB | ? |
| Storage | ? raw hardware | 16 GB | ? raw hardware |
| Main Camera | Yes | 8 megapixel | - |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | 720p HD | - |
| Front Camera | - | 1 megapixel | - |
| Weight |
3 oz (85g) |
5.6 oz (159g) |
4.5 oz (128g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.03" x 2.7" x 0.45" (128 x 69 x 11.4 mm) |
3.5" x 2" x 1.1" (89 x 51 x 27.9 mm) |
| Form Factor | Clamshell | Slab | Clamshell |
| Platform / OS | (proprietary) | Windows | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
iDEN: 800 |
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| Data Technology | GPRS | LTE (Cat 3) | - |
| Features | |||
| GPS / Location | - | n/a | Yes |
| Accessibility | |||
| Hearing Aid Compatible | - |
Yes M3, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes |
| Alerts | |||
| Extra Display | - | - | Yes |
| Ringer Profiles | - | - | Yes |
| Connectivity | |||
| Bluetooth | - | Yes | - |
| Mobile Hotspot | - | n/a | - |
| USB | - |
Yes Micro-USB |
Yes |
| Wi-Fi | - | Yes | - |
| Contacts | |||
| Picture ID | Yes | n/a | Yes |
| Ringer ID | Yes | n/a | Yes |
| Voice Dialing | - | n/a | Yes |
| Customization | |||
| Custom Graphics | Yes | n/a | Yes |
| Custom Ringtones | Yes | n/a | Yes |
| Real-Music Ringers | - | n/a | Yes * |
| Data & Network | |||
| Data Tethering | - | n/a | Yes |
| WAP / Web Browser | Yes | n/a | Yes |
| Input | |||
| Predictive Text Entry | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
- |
| Messaging | |||
| Email Client | - | n/a | - |
| EMS / Picture Messaging | Yes | n/a | - |
| Instant Messaging | - | n/a | - |
| MMS | Yes | n/a | Yes |
| Text Messaging Templates | Yes | n/a | Yes |
| Music | |||
| FM Radio | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | - |
| Music Player | - | n/a | - |
| Productivity | |||
| Alarm | Yes | n/a | - |
| Calculator | Yes | n/a | - |
| Calendar | Yes | n/a | Yes |
| To-Do List | Yes | n/a | - |
| Voice Memo | Yes | n/a | Yes |
| Software | |||
| Games | Yes | n/a | Yes |
| Java (J2ME) | Yes | n/a | Yes |
| Voice | |||
| Headset Jack (2.5 mm) | Yes | n/a | Yes |
| Push-To-Talk | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Samsung SGH-X640 | Nokia Lumia 900 | Motorola i450 / i455 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Nokia Lumia 900 | Motorola i450 / i455 |
