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| Phone | Samsung SGH-X640 | Sony Ericsson T68i | AT&T Vista |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? | ? |
5.5" diag. 18 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
101 x 80 pixels LCD (STN) |
720 x 1440 pixels (~293 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz |
| Battery | 800 mAh | 700 mAh | 2,450 mAh |
| Processor | ? | ? | 2 GHz MediaTek Helio A22 (MT6761V) |
| RAM | ? | ? | 3 GB |
| Storage | ? raw hardware | ? raw hardware | 32 GB |
| Main Camera | Yes | - | 8 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | - | 1080p HD |
| Front Camera | - | - | 5 megapixel |
| Weight |
3 oz (85g) |
2.96 oz (84g) |
5.51 oz (156g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.94" x 1.89" x 0.79" (100 x 48 x 20.1 mm) |
5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm) |
| Form Factor | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8 |
| Data Technology | GPRS | GPRS | LTE (Cat 4) |
| Features | |||
| Flashlight | - | - | Yes |
| Accessibility | |||
| Hearing Aid Compatible | - | - |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a |
| Alerts | |||
| Ringer Profiles | - | Yes | - |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| Infrared (IR) | - | Yes | - |
| USB | - | - |
Yes USB Type C |
| Wi-Fi | - | - | Yes |
| Contacts | |||
| Picture ID | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | n/a |
| Voice Dialing | - | Yes | n/a |
| Customization | |||
| Custom Graphics | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | n/a |
| Data & Network | |||
| Data Tethering | - | Yes | n/a |
| WAP / Web Browser | Yes | Yes | n/a |
| Input | |||
| Predictive Text Entry | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | - | - | Yes |
| Messaging | |||
| Email Client | - | Yes | n/a |
| EMS / Picture Messaging | Yes | Yes | n/a |
| MMS | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | n/a |
| Music | |||
| Headphone Jack (3.5mm) | - | - | Yes |
| Productivity | |||
| Alarm | Yes | Yes | n/a |
| Calculator | Yes | Yes | n/a |
| Calendar | Yes | Yes | n/a |
| To-Do List | Yes | Yes | n/a |
| Voice Memo | Yes | Yes | n/a |
| Software | |||
| Games | Yes | Yes | n/a |
| Java (J2ME) | Yes | - | n/a |
| Voice | |||
| HD Voice | - | - | Yes |
| Headset Jack (2.5 mm) | Yes | - | n/a |
| Speaker Phone | Yes | - | Yes |
| Samsung SGH-X640 | Sony Ericsson T68i | AT&T Vista | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Sony Ericsson T68i | AT&T Vista |
