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| Phone | Samsung SGH-X640 | ZTE Engage LT / Engage MT | Siemens CX75 | HTC Shadow |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Not yet released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
4" diag. 5 : 3 |
? |
2.6" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
132 x 176 pixels LCD (TFT/TFD) |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | ? |
| Battery | 800 mAh | 1,900 mAh | 750 mAh | 920 mAh |
| Processor | ? | ? | ? | 200 MHz OMAP 850 |
| RAM | ? | 1 GB | ? | ? |
| Storage | ? raw hardware | 4 GB | ? raw hardware | ? raw hardware |
| Main Camera | Yes | 3 megapixel | 1 megapixel | 2 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | WVGA / 480p | ? | ? |
| Front Camera | - | Yes | - | - |
| Weight |
3 oz (85g) |
5.09 oz (144g) |
3.46 oz (98g) |
5.29 oz (150g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.78" x 2.54" x 0.46" (121 x 64 x 11.7 mm) |
4.33" x 1.88" x 0.74" (110 x 48 x 18.8 mm) |
4.06" x 2.09" x 0.59" (103 x 53 x 15 mm) |
| Form Factor | Clamshell | Slab | Slab | Slide |
| Platform / OS | (proprietary) | Android | (proprietary) | Windows Mobile Standard |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
GSM: 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | EVDO rA | GPRS | EDGE |
| Features | ||||
| GPS / Location | - | n/a | - | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | - | n/a |
| Multiple Languages | Yes | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | - | - |
| Alerts | ||||
| Ringer Profiles | - | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Infrared (IR) | - | - | Yes | - |
| USB | - |
Yes Micro-USB |
Yes |
Yes Mini-USB |
| Wi-Fi | - | Yes | - |
Yes 802.11 b,g |
| Contacts | ||||
| Picture ID | Yes | n/a | Yes | n/a |
| Ringer ID | Yes | n/a | Yes | n/a |
| Voice Dialing | - | n/a | - | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | Yes | n/a |
| Custom Ringtones | Yes | n/a | Yes | n/a |
| Real-Music Ringers | - | n/a | - | n/a |
| Data & Network | ||||
| Data Tethering | - | n/a | Yes | n/a |
| WAP / Web Browser | Yes | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- | - |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | Yes | n/a |
| EMS / Picture Messaging | Yes | n/a | Yes | n/a |
| Instant Messaging | - | n/a | - | n/a |
| MMS | Yes | n/a | Yes | n/a |
| Text Messaging Templates | Yes | n/a | - | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | - | - |
| Music Player | - | n/a | Yes | n/a |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | n/a |
| Calculator | Yes | n/a | Yes | n/a |
| Calendar | Yes | n/a | Yes | n/a |
| To-Do List | Yes | n/a | Yes | n/a |
| Voice Memo | Yes | n/a | Yes | n/a |
| Software | ||||
| Games | Yes | n/a | Yes | n/a |
| Java (J2ME) | Yes | n/a | Yes | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | n/a | - | n/a |
| Push-To-Talk | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | ZTE Engage LT / Engage MT | Siemens CX75 | HTC Shadow | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | ZTE Engage LT / Engage MT | Siemens CX75 | HTC Shadow |
