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| Phone | Cricket Debut S2 / AT&T Calypso 4 | Ericsson T66 | Samsung Jack i637 |
| Current U.S. Carriers | AT&T | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
6.1" diag. 19.5 : 9 |
? |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
? |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? |
| Battery | 3,000 mAh | ? | 1,480 mAh |
| Processor | 2 GHz MediaTek Helio A22 (MT6761WB) | ? | ? |
| RAM | 3 GB | ? | ? |
| Storage | 64 GB | ? raw hardware | ? raw hardware |
| Main Camera | 8 megapixel | - | 3 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | ? | - | ? |
| Front Camera | 5 megapixel | - | - |
| Weight |
5.64 oz (160g) |
2.08 oz (59g) |
3.6 oz (102g) |
| Dimensions |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm) |
4.4" x 2.4" x 0.5" (112 x 61 x 12.7 mm) |
| Form Factor | Slab | Slab | Slab |
| Platform / OS | Android | (proprietary) | Windows Mobile Standard |
| Network Bands |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | LTE (Cat 4) | - | HSDPA 3.6 |
| Features | |||
| Flashlight | Yes | - | - |
| GPS / Location | n/a | - | n/a |
| Accessibility | |||
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
- |
Yes M3 (mostly compatible) |
| Multiple Languages | n/a | Yes | 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) |
- |
Yes 802.11 b,g |
| Contacts | |||
| Picture ID | n/a | - | n/a |
| Ringer ID | n/a | - | n/a |
| Voice Dialing | n/a | - | n/a |
| Customization | |||
| Custom Graphics | n/a | Yes | n/a |
| Custom Ringtones | n/a | Yes | n/a |
| Real-Music Ringers | n/a | - | n/a |
| Data & Network | |||
| Data Tethering | n/a | - | n/a |
| WAP / Web Browser | n/a | Yes | n/a |
| Input | |||
| Predictive Text Entry | n/a | Yes | 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 |
| EMS / Picture Messaging | n/a | Yes | n/a |
| Instant Messaging | n/a | - | n/a |
| MMS | n/a | - | n/a |
| Text Messaging Templates | n/a | Yes | n/a |
| Music | |||
| Headphone Jack (3.5mm) | Yes | - | - |
| Music Player | n/a | - | n/a |
| Power | |||
| Fast Charging | Yes | - | - |
| Productivity | |||
| Alarm | n/a | Yes | n/a |
| Calculator | n/a | Yes | n/a |
| Calendar | n/a | Yes | n/a |
| To-Do List | n/a | Yes | n/a |
| Voice Memo | n/a | - | n/a |
| Software | |||
| Games | n/a | Yes | n/a |
| Java (J2ME) | n/a | - | n/a |
| Voice | |||
| HD Voice | Yes | - | - |
| Speaker Phone | Yes | - | Yes |
| Cricket Debut S2 / AT&T Calypso 4 | Ericsson T66 | Samsung Jack i637 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Cricket Debut S2 / AT&T Calypso 4 | Ericsson T66 | Samsung Jack i637 |
