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| Phone | Ericsson T66 | Coolpad Quattro 4G | AT&T Vista | Samsung DoubleTime |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
4" diag. 5 : 3 |
5.5" diag. 18 : 9 |
3.2" diag. 5 : 3 |
| Display Resolution & Type | ? |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
720 x 1440 pixels (~293 ppi) LCD (TFT/TFD) |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz |
| Battery | ? | 1,600 mAh | 2,450 mAh | 1,200 mAh |
| Processor | ? | ? | 2 GHz MediaTek Helio A22 (MT6761V) | 600 MHz Qualcomm |
| RAM | ? | ? | 3 GB | ? |
| Storage | ? raw hardware | 512 MB | 32 GB | ? raw hardware |
| Main Camera | - | 3 megapixel | 8 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | VGA (640 x 480) | 1080p HD | QVGA (320 x 240) |
| Front Camera | - | Yes | 5 megapixel | - |
| Weight |
2.08 oz (59g) |
3.31 oz (94g) |
5.51 oz (156g) |
5.22 oz (148g) |
| Dimensions |
3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm) |
4.96" x 2.6" x 0.51" (126 x 66 x 13 mm) |
5.88" x 2.82" x 0.35" (149 x 72 x 8.9 mm) |
4.45" x 2.44" x 0.59" (113 x 62 x 15 mm) |
| Form Factor | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4 CDMA: 850, 1700, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30 WCDMA: 1, 2, 4, 5, 8 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | - | LTE (Cat 3) | LTE (Cat 4) | HSPA 7.2 |
| Features | ||||
| Flashlight | - | - | Yes | - |
| GPS / Location | - | n/a | n/a | n/a |
| Accessibility | ||||
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | - | Yes |
| Alerts | ||||
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | n/a |
| USB | - | Yes |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - | Yes | Yes |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | - | n/a | n/a | n/a |
| Ringer ID | - | n/a | n/a | n/a |
| Voice Dialing | - | n/a | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a | n/a |
| Data & Network | ||||
| Data Tethering | - | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a |
| MMS | - | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Music Player | - | n/a | n/a | n/a |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a |
| To-Do List | Yes | n/a | n/a | n/a |
| Voice Memo | - | n/a | n/a | n/a |
| Software | ||||
| Games | Yes | n/a | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Speaker Phone | - | Yes | Yes | Yes |
| Ericsson T66 | Coolpad Quattro 4G | AT&T Vista | Samsung DoubleTime | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson T66 | Coolpad Quattro 4G | AT&T Vista | Samsung DoubleTime |
