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| Phone | Ericsson R278d | Cricket Debut S2 / AT&T Calypso 4 | Pantech Duo C810 |
| Current U.S. Carriers | (none) | AT&T | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
6.1" diag. 19.5 : 9 |
2.2" diag. 4 : 3 |
| Display Resolution & Type | 101 x 40 pixels |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? |
| Battery | ? | 3,000 mAh | 1,320 mAh |
| Processor | ? | 2 GHz MediaTek Helio A22 (MT6761WB) | ARM 920t PXA27x |
| RAM | ? | 3 GB | ? |
| Storage | ? raw hardware | 64 GB | ? raw hardware |
| Main Camera | - | 8 megapixel | 1 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | ? | QVGA (320 x 240) |
| Front Camera | - | 5 megapixel | - |
| Weight |
9.28 oz (263g) |
5.64 oz (160g) |
3.88 oz (110g) |
| Dimensions |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm) |
| Form Factor | Slab | Slab | Slide |
| Platform / OS | (proprietary) | Android | Windows Mobile Standard |
| Network Bands |
TDMA: 850, 1900 AMPS: 850 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | - | LTE (Cat 4) | HSDPA 1.8 |
| Features | |||
| Flashlight | - | Yes | - |
| Accessibility | |||
| Hearing Aid Compatible | - |
Yes M4, T4 (very tele-coil compatible) |
- |
| Multiple Languages | Yes | n/a | n/a |
| Alerts | |||
| Ringer Profiles | Yes | - | Yes |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| USB | - |
Yes USB Type C |
Yes |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | |||
| Picture ID | - | n/a | n/a |
| Ringer ID | - | n/a | n/a |
| Voice Dialing | - | n/a | n/a |
| Customization | |||
| Custom Graphics | - | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a |
| Data & Network | |||
| Data Tethering | Yes | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a |
| Input | |||
| Predictive Text Entry | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- |
| Memory | |||
| Memory Card Slot | - | Yes | Yes |
| Messaging | |||
| Email Client | - | n/a | n/a |
| Instant Messaging | - | n/a | n/a |
| MMS | - | n/a | n/a |
| Text Messaging Templates | - | n/a | n/a |
| Music | |||
| Headphone Jack (3.5mm) | - | Yes | - |
| Music Player | - | n/a | n/a |
| Power | |||
| Fast Charging | - | Yes | - |
| Productivity | |||
| Alarm | Yes | n/a | n/a |
| Calculator | - | n/a | n/a |
| Calendar | - | n/a | n/a |
| To-Do List | - | n/a | n/a |
| Voice Memo | - | n/a | n/a |
| Software | |||
| Games | - | n/a | n/a |
| Voice | |||
| HD Voice | - | Yes | - |
| Speaker Phone | - | Yes | Yes |
| Ericsson R278d | Cricket Debut S2 / AT&T Calypso 4 | Pantech Duo C810 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson R278d | Cricket Debut S2 / AT&T Calypso 4 | Pantech Duo C810 |
