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| Phone | Samsung SGH-X640 | HP iPAQ hw6510 / hw6515 | Asus PadFone X | Siemens CX75 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Not yet released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
5" diag. 16 : 9 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 240 pixels LCD (TFT/TFD) |
1080 x 1920 pixels (~441 ppi) LCD (TFT/TFD) |
132 x 176 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | 800 mAh | 1,200 mAh | 2,300 mAh | 750 mAh |
| Processor | ? | 312 MHz Intel XScale PXA272 | 2.3 GHz Qualcomm Snapdragon 800 | ? |
| RAM | ? | ? | 2 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 16 GB | ? raw hardware |
| Main Camera | Yes | 1 megapixel | 13 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | 4K UHD | ? |
| Front Camera | - | - | 2 megapixel | - |
| Weight |
3 oz (85g) |
5.8 oz (164g) |
5.29 oz (150g) |
3.46 oz (98g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.65" x 2.8" x 0.71" (118 x 71 x 18 mm) |
5.67" x 2.85" x 0.39" (144 x 72 x 10 mm) |
4.33" x 1.88" x 0.74" (110 x 48 x 18.8 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Windows Mobile Professional | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 7, 17 WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | GPRS | EDGE | LTE (Cat 4) | GPRS |
| Features | ||||
| GPS / Location | - | n/a | n/a | - |
| Accessibility | ||||
| Hearing Aid Compatible | - | - |
Yes M3, T4 (very tele-coil compatible) |
- |
| Multiple Languages | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | - |
| Alerts | ||||
| Ringer Profiles | - | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Infrared (IR) | - | Yes | - | Yes |
| NFC | - | - | Yes | - |
| USB | - | Yes |
Yes Micro-USB |
Yes |
| Wi-Fi | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | Yes |
| Ringer ID | Yes | n/a | n/a | Yes |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | n/a | n/a | Yes |
| Data & Network | ||||
| Data Tethering | - | n/a | n/a | Yes |
| WAP / Web Browser | Yes | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | Yes |
| Side Keys | Yes | - | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Touch Screen | - | Yes |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | n/a | Yes |
| EMS / Picture Messaging | Yes | n/a | n/a | Yes |
| MMS | Yes | n/a | n/a | Yes |
| Text Messaging Templates | Yes | n/a | n/a | - |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | - | n/a | n/a | Yes |
| Photo & Video | ||||
| Miracast | - | - | Yes | - |
| Power | ||||
| Wireless Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | Yes |
| Calculator | Yes | n/a | n/a | Yes |
| Calendar | Yes | n/a | n/a | Yes |
| To-Do List | Yes | n/a | n/a | Yes |
| Voice Memo | Yes | n/a | n/a | Yes |
| Software | ||||
| Games | Yes | n/a | n/a | Yes |
| Java (J2ME) | Yes | n/a | n/a | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | - |
| Push-To-Talk | - | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Samsung SGH-X640 | HP iPAQ hw6510 / hw6515 | Asus PadFone X | Siemens CX75 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | HP iPAQ hw6510 / hw6515 | Asus PadFone X | Siemens CX75 |
