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| Phone | AT&T Vista | Samsung SGH-X640 | Samsung SGH-P850 / P858 | LG G4020 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
5.5" diag. 18 : 9 |
? | ? | ? |
| Display Resolution & Type |
720 x 1440 pixels (~293 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
128 x 128 pixels LCD (STN) |
| Display Refresh | 60 Hz | ? | ? | ? |
| Battery | 2,450 mAh | 800 mAh | 950 mAh | 760 mAh |
| Processor | 2 GHz MediaTek Helio A22 (MT6761V) | ? | ? | ? |
| RAM | 3 GB | ? | ? | ? |
| Storage | 32 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 8 megapixel | Yes | 3 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 1080p HD | - | ? | - |
| Front Camera | 5 megapixel | - | - | - |
| Weight |
5.51 oz (156g) |
3 oz (85g) |
4.23 oz (120g) |
3 oz (85g) |
| Dimensions |
5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.77" x 1.86" x 0.96" (96 x 47 x 24.4 mm) |
3.19" x 1.69" x 0.82" (81 x 43 x 20.8 mm) |
| Form Factor | Slab | Clamshell | Clamshell | Clamshell |
| Platform / OS | Android | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
GSM: 850, 1900 |
| Data Technology | LTE (Cat 4) | GPRS | EDGE | GPRS |
| Features | ||||
| Flashlight | Yes | - | - | - |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
- | - | - |
| Multiple Languages | n/a | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | - | - | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | - |
| USB |
Yes USB Type C |
- | Yes | - |
| Wi-Fi | Yes | - | - | - |
| Contacts | ||||
| Picture ID | n/a | Yes | Yes | Yes |
| Ringer ID | n/a | Yes | Yes | Yes |
| Customization | ||||
| Custom Graphics | n/a | Yes | Yes | Yes |
| Custom Ringtones | n/a | Yes | Yes | Yes |
| Real-Music Ringers | n/a | - | Yes | - |
| Data & Network | ||||
| Data Tethering | n/a | - | - | Yes |
| WAP / Web Browser | n/a | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - | - |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | - |
| Messaging | ||||
| Email Client | n/a | - | Yes | - |
| EMS / Picture Messaging | n/a | Yes | - | Yes |
| MMS | n/a | Yes | Yes | Yes |
| Text Messaging Templates | n/a | Yes | Yes | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Music Player | n/a | - | Yes | - |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| TV Output | - | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | Yes | Yes |
| Calculator | n/a | Yes | Yes | Yes |
| Calendar | n/a | Yes | Yes | Yes |
| To-Do List | n/a | Yes | - | - |
| Voice Memo | n/a | Yes | Yes | - |
| Software | ||||
| Games | n/a | Yes | Yes | Yes |
| Java (J2ME) | n/a | Yes | Yes | Yes |
| Voice | ||||
| HD Voice | Yes | - | - | - |
| Headset Jack (2.5 mm) | n/a | Yes | - | Yes |
| Speaker Phone | Yes | Yes | Yes | - |
| AT&T Vista | Samsung SGH-X640 | Samsung SGH-P850 / P858 | LG G4020 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | AT&T Vista | Samsung SGH-X640 | Samsung SGH-P850 / P858 | LG G4020 |
