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| Phone | Huawei W1 | Samsung SGH-X640 | ZTE Z331 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
? |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 1,950 mAh | 800 mAh | 950 mAh |
| Processor | 1.2 GHz Qualcomm Snapdragon 400 MSM8230 | ? | ? |
| RAM | 512 MB | ? | ? |
| Storage | 4 GB | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | Yes | 3 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | - | QCIF (176 x 144) |
| Front Camera | Yes | - | - |
| Weight |
4.41 oz (125g) |
3 oz (85g) |
4 oz (113g) |
| Dimensions |
4.84" x 2.5" x 0.41" (123 x 64 x 10.4 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
| Form Factor | Slab | Clamshell | Clamshell |
| Platform / OS | Windows | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSPA+ 21 | GPRS | HSDPA 3.6 |
| Features | |||
| GPS / Location | n/a | - | Yes |
| Accessibility | |||
| Adjustable Text Size | n/a | - | - |
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
- |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | Yes |
| TTY/TDD (Digital) | - | - | Yes |
| Alerts | |||
| Extra Display | - | - | Yes |
| Ringer Profiles | - | - | Yes |
| Connectivity | |||
| Bluetooth | Yes | - | Yes |
| USB |
Yes Micro-USB |
- |
Yes Micro-USB |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - |
| Contacts | |||
| Picture ID | n/a | Yes | Yes |
| Ringer ID | n/a | Yes | Yes |
| Voice Dialing | n/a | - | - |
| Customization | |||
| Custom Graphics | n/a | Yes | Yes |
| Custom Ringtones | n/a | Yes | Yes |
| Real-Music Ringers | n/a | - | Yes |
| Data & Network | |||
| Data Tethering | n/a | - | Yes |
| WAP / Web Browser | n/a | Yes | Yes |
| Input | |||
| Predictive Text Entry | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
| Memory | |||
| Memory Card Slot | Yes | - | Yes |
| Messaging | |||
| Email Client | n/a | - | Yes |
| EMS / Picture Messaging | n/a | Yes | - |
| Instant Messaging | n/a | - | Yes |
| MMS | n/a | Yes | Yes |
| Text Messaging Templates | n/a | Yes | Yes |
| Music | |||
| Headphone Jack (3.5mm) | Yes | - | - |
| Music Player | n/a | - | Yes |
| Productivity | |||
| Alarm | n/a | Yes | Yes |
| Calculator | n/a | Yes | Yes |
| Calendar | n/a | Yes | Yes |
| To-Do List | n/a | Yes | - |
| Voice Memo | n/a | Yes | Yes |
| Software | |||
| Games | n/a | Yes | Yes |
| Java (J2ME) | n/a | Yes | Yes |
| Voice | |||
| Headset Jack (2.5 mm) | n/a | Yes | - |
| Speaker Phone | Yes | Yes | Yes |
| Huawei W1 | Samsung SGH-X640 | ZTE Z331 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Huawei W1 | Samsung SGH-X640 | ZTE Z331 |
