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| Phone | Samsung SGH-X640 | Samsung SPH-A800 / MM-A800 | Motorola T720 / T721 (GSM) | BlackBerry Bold 9900 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? | ? |
2.8" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
120 x 160 pixels LCD (STN) |
640 x 480 pixels (~286 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 800 mAh | ? | ? | 1,230 mAh |
| Processor | ? | ? | ? | 1.2 GHz Qualcomm Snapdragon S2 MSM8255 |
| RAM | ? | ? | ? | 768 MB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 8 GB |
| Main Camera | Yes | 2 megapixel | - | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | QCIF (176 x 144) | - | 720p HD |
| Front Camera | - | - | - | - |
| Weight |
3 oz (85g) |
5.08 oz (144g) |
3.56 oz (101g) |
4.59 oz (130g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.94" x 1.93" x 1.02" (100 x 49 x 25.9 mm) |
3.5" x 1.87" x 0.83" (89 x 47 x 21.1 mm) |
4.53" x 2.6" x 0.41" (115 x 66 x 10.5 mm) |
| Form Factor | Clamshell | Slide | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | BlackBerry OS |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
GSM: 850, 1900 |
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| Data Technology | GPRS | 1xRTT | GPRS | HSPA 14.4 |
| Features | ||||
| GPS / Location | - | Yes | - | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | - | - | n/a |
| Hearing Aid Compatible | - | - | - |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | - | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | - | - | - | Yes |
| NFC | - | - | - | Yes |
| USB | - | Yes | - |
Yes Micro-USB |
| Wi-Fi | - | - | - |
Yes 4 (802.11 a,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | Yes | - | n/a |
| Ringer ID | Yes | Yes | Yes | n/a |
| Voice Dialing | - | Yes | Yes | n/a |
| Customization | ||||
| Changeable Body Plates | - | - | Yes | - |
| Custom Graphics | Yes | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a |
| Real-Music Ringers | - | - | - | n/a |
| Data & Network | ||||
| Data Tethering | - | - | 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 |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - | - | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | - | Yes | n/a |
| EMS / Picture Messaging | Yes | - | Yes | n/a |
| Instant Messaging | - | - | - | n/a |
| MMS | Yes | - | - | n/a |
| Text Messaging Templates | Yes | Yes | Yes | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | - | Yes | - | n/a |
| 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 | ||||
| Games | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes | Yes | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | Yes | Yes | n/a |
| Speaker Phone | Yes | - | - | Yes |
| Samsung SGH-X640 | Samsung SPH-A800 / MM-A800 | Motorola T720 / T721 (GSM) | BlackBerry Bold 9900 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung SPH-A800 / MM-A800 | Motorola T720 / T721 (GSM) | BlackBerry Bold 9900 |
