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| Phone | Samsung SGH-X640 | Ericsson T66 | Huawei P8 lite | AT&T Vista | Samsung SCH-A990 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? |
5" diag. 16 : 9 |
5.5" diag. 18 : 9 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
? |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
720 x 1440 pixels (~293 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz | ? |
| Battery | 800 mAh | ? | 2,200 mAh | 2,450 mAh | 1,000 mAh |
| Processor | ? | ? | 1.5 GHz Qualcomm Snapdragon 615 (MSM8939) | 2 GHz MediaTek Helio A22 (MT6761V) | ? |
| RAM | ? | ? | 2 GB | 3 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 16 GB | 32 GB | ? raw hardware |
| Main Camera | Yes | - | 13 megapixel | 8 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | 1080p HD | 1080p HD | ? |
| Front Camera | - | - | 5 megapixel | 5 megapixel | - |
| Weight |
3 oz (85g) |
2.08 oz (59g) |
4.62 oz (131g) |
5.51 oz (156g) |
4.4 oz (125g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm) |
5.62" x 2.72" x 0.3" (143 x 69 x 7.5 mm) |
5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | Android | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 17 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8 |
CDMA: 850, 1900 |
| Data Technology | GPRS | - | LTE (Cat 4) | LTE (Cat 4) | EVDO r0 |
| Features | |||||
| Flashlight | - | - | Yes | Yes | Yes |
| GPS / Location | - | - | n/a | n/a | Yes |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | n/a | - |
| Hearing Aid Compatible | - | - | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | - | Yes | - | Yes |
| Alerts | |||||
| Extra Display | - | - | - | - | Yes |
| Ringer Profiles | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | - | - | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a | n/a | - |
| USB | - | - |
Yes Micro-USB |
Yes USB Type C |
Yes |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
Yes | - |
| Contacts | |||||
| Picture ID | Yes | - | n/a | n/a | Yes |
| Ringer ID | Yes | - | n/a | n/a | Yes |
| Voice Dialing | - | - | n/a | n/a | Yes |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | n/a | Yes |
| Real-Music Ringers | - | - | n/a | n/a | Yes |
| Data & Network | |||||
| Data Tethering | - | - | n/a | n/a | Yes |
| Dual-SIM | - | - | Yes * | - | - |
| WAP / Web Browser | Yes | Yes | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | - | - | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | - | n/a | n/a | - |
| EMS / Picture Messaging | Yes | Yes | n/a | n/a | Yes |
| Instant Messaging | - | - | n/a | n/a | - |
| MMS | Yes | - | n/a | n/a | Yes |
| Text Messaging Templates | Yes | Yes | n/a | n/a | Yes |
| Music | |||||
| FM Radio | - | - | Yes | - | - |
| Headphone Jack (3.5mm) | - | - | Yes | Yes | - |
| Music Player | - | - | n/a | n/a | Yes |
| Stereo Speakers | - | - | - | - | Yes |
| Photo & Video | |||||
| TV Output | - | - | - | - | Yes |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | Yes |
| Calculator | Yes | Yes | n/a | n/a | Yes |
| Calendar | Yes | Yes | n/a | n/a | Yes |
| To-Do List | Yes | Yes | n/a | n/a | - |
| Voice Memo | Yes | - | n/a | n/a | Yes |
| Software | |||||
| BREW | - | - | n/a | n/a | Yes |
| Games | Yes | Yes | n/a | n/a | Yes |
| Java (J2ME) | Yes | - | n/a | n/a | - |
| Voice | |||||
| HD Voice | - | - | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | - | n/a | n/a | - |
| Speaker Phone | Yes | - | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Ericsson T66 | Huawei P8 lite | AT&T Vista | Samsung SCH-A990 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Ericsson T66 | Huawei P8 lite | AT&T Vista | Samsung SCH-A990 |
