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| Phone | Samsung SGH-X640 | Samsung SGH-X820 | ZTE Grand XMax | Nokia N97 mini |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
6" diag. 16 : 9 |
3.2" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
220 x 176 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~245 ppi) LCD (TFT/TFD) |
360 x 640 pixels (~229 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | 800 mAh | 650 mAh | 3,200 mAh | 1,200 mAh |
| Processor | ? | ? | 1.2 GHz Qualcomm Snapdragon 200 MSM8212 | 434 MHz ARM 11 |
| RAM | ? | ? | 1 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 8 GB | 8 GB |
| Main Camera | Yes | 2 megapixel | 8 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | 720p HD | VGA (640 x 480) |
| Front Camera | - | - | 1 megapixel | - |
| Weight |
3 oz (85g) |
2.33 oz (66g) |
6.06 oz (172g) |
4.87 oz (138g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.45" x 1.97" x 0.27" (113 x 50 x 6.9 mm) |
6.38" x 3.27" x 0.31" (162 x 83 x 7.9 mm) |
4.45" x 2.07" x 0.56" (113 x 52 x 14.2 mm) |
| Form Factor | Clamshell | Slab | Slab | Slide |
| Platform / OS | (proprietary) | (proprietary) | Android | S60 (Symbian) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | EDGE | HSPA+ 21 | HSDPA 3.6 |
| Features | ||||
| GPS / Location | - | - | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | n/a |
| Hearing Aid Compatible | - | - |
Yes M4, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | - |
| Alerts | ||||
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Infrared (IR) | - | - | Yes | - |
| USB | - | Yes |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
Yes 802.11 b,g |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a |
| Voice Dialing | - | - | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a |
| Real-Music Ringers | - | Yes | n/a | n/a |
| Data & Network | ||||
| Data Tethering | - | - | n/a | n/a |
| External Antenna Jack | - | Yes | n/a | n/a |
| WAP / Web Browser | Yes | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - | - |
Yes Capacitive |
Yes Resistive |
| Memory | ||||
| Memory Card Slot | - | - | Yes | Yes |
| Messaging | ||||
| Email Client | - | Yes | n/a | n/a |
| EMS / Picture Messaging | Yes | Yes | n/a | n/a |
| Instant Messaging | - | - | n/a | n/a |
| MMS | Yes | Yes | n/a | n/a |
| Text Messaging Templates | Yes | Yes | n/a | n/a |
| Music | ||||
| FM Radio | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | - | Yes | Yes |
| Music Player | - | - | n/a | n/a |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| TV Output | - | Yes | - | Yes |
| Video Calling | - | - | n/a | n/a |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a |
| To-Do List | Yes | Yes | n/a | n/a |
| Voice Memo | Yes | Yes | n/a | n/a |
| Software | ||||
| Games | Yes | Yes | n/a | n/a |
| Java (J2ME) | Yes | Yes | n/a | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | - | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | Samsung SGH-X820 | ZTE Grand XMax | Nokia N97 mini | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung SGH-X820 | ZTE Grand XMax | Nokia N97 mini |
