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| Phone | Samsung SGH-X820 | Samsung SGH-X640 | Motorola Krave ZN4 | Huawei W1 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
2.8" diag. 5 : 3 |
4" diag. 5 : 3 |
| Display Resolution & Type |
220 x 176 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
240 x 400 pixels (~167 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 650 mAh | 800 mAh | 950 mAh | 1,950 mAh |
| Processor | ? | ? | ? | 1.2 GHz Qualcomm Snapdragon 400 MSM8230 |
| RAM | ? | ? | ? | 512 MB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 4 GB |
| Main Camera | 2 megapixel | Yes | 2 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | - | QVGA (320 x 240) | 720p HD |
| Front Camera | - | - | - | Yes |
| Weight |
2.33 oz (66g) |
3 oz (85g) |
4.52 oz (128g) |
4.41 oz (125g) |
| Dimensions |
4.45" x 1.97" x 0.27" (113 x 50 x 6.9 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.12" x 2.01" x 0.74" (105 x 51 x 18.8 mm) |
4.84" x 2.5" x 0.41" (123 x 64 x 10.4 mm) |
| Form Factor | Slab | Clamshell | Flip | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Windows |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EDGE | GPRS | EVDO r0 | HSPA+ 21 |
| Features | ||||
| GPS / Location | - | - | Yes | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | - | - | n/a |
| Hearing Aid Compatible | - | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | Yes | n/a |
| TTY/TDD (Digital) | - | - | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| USB | Yes | - |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | - | - |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | Yes | n/a |
| Voice Dialing | - | - | Yes | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a |
| Real-Music Ringers | Yes | - | Yes | n/a |
| Data & Network | ||||
| Data Tethering | - | - | Yes | n/a |
| External Antenna Jack | Yes | - | - | n/a |
| WAP / Web Browser | Yes | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - | - | Yes |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | - | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | - | Yes | n/a |
| EMS / Picture Messaging | Yes | Yes | Yes | n/a |
| Instant Messaging | - | - | Yes | n/a |
| MMS | Yes | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | Yes | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Music Player | - | - | Yes | n/a |
| Photo & Video | ||||
| TV Output | Yes | - | - | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | n/a |
| Calendar | Yes | Yes | Yes | n/a |
| To-Do List | Yes | Yes | - | n/a |
| Voice Memo | Yes | Yes | Yes | n/a |
| Software | ||||
| BREW | - | - | Yes | n/a |
| Games | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes | - | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | - | Yes | - | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SGH-X820 | Samsung SGH-X640 | Motorola Krave ZN4 | Huawei W1 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X820 | Samsung SGH-X640 | Motorola Krave ZN4 | Huawei W1 |
