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| Phone | Samsung Knack U310 | Samsung Jack i637 | Motorola T730 / T731c | Samsung Sway U650 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
2.4" diag. 4 : 3 |
? |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
120 x 160 pixels LCD (STN) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 1,000 mAh | 1,480 mAh | 750 mAh | ? |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | 3 megapixel | - | 2 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | - | ? |
| Front Camera | - | - | - | - |
| Weight |
3.63 oz (103g) |
3.6 oz (102g) |
4.06 oz (115g) |
3.56 oz (101g) |
| Dimensions |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
4.4" x 2.4" x 0.5" (112 x 61 x 12.7 mm) |
3.54" x 1.87" x 0.91" (90 x 47 x 23.1 mm) |
4.15" x 1.96" x 0.47" (105 x 50 x 11.9 mm) |
| Form Factor | Clamshell | Slab | Clamshell | Slide |
| Platform / OS | (proprietary) | Windows Mobile Standard | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 |
| Data Technology | - | HSDPA 3.6 | 1xRTT | 1xRTT |
| Features | ||||
| GPS / Location | Yes | n/a | Yes | Yes |
| Accessibility | ||||
| Adjustable Text Size | Yes | n/a | - | Yes |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
- |
Yes M4 (very compatible) |
| Multiple Languages | Yes | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | Yes | - |
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | - | Yes |
| USB | - | Yes | Yes | Yes |
| Wi-Fi | - |
Yes 802.11 b,g |
- | - |
| Contacts | ||||
| Picture ID | - | n/a | - | Yes |
| Ringer ID | - | n/a | Yes | Yes |
| Voice Dialing | Yes | n/a | Yes | Yes |
| Customization | ||||
| Changeable Body Plates | - | - | Yes | - |
| 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 | Yes | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | n/a | Yes | Yes |
| EMS / Picture Messaging | Yes | n/a | Yes | Yes |
| Instant Messaging | - | n/a | - | Yes |
| MMS | - | n/a | - | Yes |
| Text Messaging Templates | - | n/a | Yes | Yes |
| Music | ||||
| Music Player | - | n/a | - | Yes |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | Yes |
| Calculator | Yes | n/a | Yes | Yes |
| Calendar | Yes | n/a | Yes | Yes |
| To-Do List | - | n/a | - | - |
| Voice Memo | - | n/a | Yes | Yes |
| Software | ||||
| BREW | - | n/a | Yes * | Yes |
| Games | - | n/a | Yes | Yes |
| Java (J2ME) | - | n/a | - | - |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | n/a | Yes | - |
| Speaker Phone | Yes | Yes | - | Yes |
| * Some versions only | ||||
| Samsung Knack U310 | Samsung Jack i637 | Motorola T730 / T731c | Samsung Sway U650 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Knack U310 | Samsung Jack i637 | Motorola T730 / T731c | Samsung Sway U650 |
