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| Phone | Ericsson R278d | Cricket Debut S2 / AT&T Calypso 4 | Sonim XP3 | ZTE Z998 / Unico LTE | Sony Xperia ion |
| Current U.S. Carriers | (none) | AT&T | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
6.1" diag. 19.5 : 9 |
2.6" diag. 4 : 3 |
4.5" diag. 16 : 9 |
4.6" diag. 16 : 9 |
| Display Resolution & Type | 101 x 40 pixels |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~323 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz | 60 Hz |
| Battery | ? | 3,000 mAh | 1,500 mAh | 2,070 mAh | 1,900 mAh |
| Processor | ? | 2 GHz MediaTek Helio A22 (MT6761WB) | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | 1.2 GHz Qualcomm Snapdragon 400 MSM8930 | 1.5 GHz Qualcomm Snapdragon S3 MSM8260 |
| RAM | ? | 3 GB | 1 GB | 1 GB | 1 GB |
| Storage | ? raw hardware | 64 GB | 8 GB | 4 GB | 16 GB |
| Main Camera | - | 8 megapixel | 5 megapixel | 5 megapixel | 12 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | ? | ? | 720p HD | 1080p HD |
| Front Camera | - | 5 megapixel | - | 1 megapixel | 1 megapixel |
| Weight |
9.28 oz (263g) |
5.64 oz (160g) |
6.88 oz (195g) |
4.8 oz (136g) |
5.1 oz (145g) |
| 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) |
4.4" x 2.3" x 1.1" (112 x 58 x 27.9 mm) |
5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm) |
5.2" x 2.7" x 0.4" (132 x 69 x 10.2 mm) |
| Form Factor | Slab | Slab | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | Android | (proprietary) | Android | Android |
| 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 |
4G LTE: 1, 2, 3, 4, 5, 8, 12, 13, 14, 25, 26, 38, 41, 66 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 4, 17 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | - | LTE (Cat 4) | LTE (Cat 4) | LTE (Cat 3) | LTE (Cat 3) |
| Features | |||||
| Barometer | - | - | Yes | - | - |
| Flashlight | - | Yes | Yes | - | - |
| GPS / Location | - | n/a | Yes | n/a | n/a |
| Ruggedized | - | - | Yes | - | - |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- | - |
| Accessibility | |||||
| Adjustable Text Size | - | n/a | Yes | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | Yes | - |
| Alerts | |||||
| Extra Display | - | - | Yes | - | - |
| Ringer Profiles | Yes | - | Yes | - | - |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | Yes | n/a | n/a |
| USB | - |
Yes USB Type C |
Yes USB Type C |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 a,b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes |
| Contacts | |||||
| Picture ID | - | n/a | - | n/a | n/a |
| Ringer ID | - | n/a | Yes | n/a | n/a |
| Voice Dialing | - | n/a | Yes | n/a | n/a |
| Customization | |||||
| Custom Graphics | - | n/a | Yes | n/a | n/a |
| Custom Ringtones | Yes | n/a | Yes | n/a | n/a |
| Real-Music Ringers | - | n/a | - | n/a | n/a |
| Data & Network | |||||
| Data Tethering | Yes | n/a | Yes | n/a | n/a |
| Dual-SIM | - | - | Yes | - | - |
| WAP / Web Browser | Yes | n/a | Yes | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
- |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | - | n/a | n/a |
| Instant Messaging | - | n/a | - | n/a | n/a |
| MMS | - | n/a | Yes | n/a | n/a |
| Text Messaging Templates | - | n/a | Yes | n/a | n/a |
| Music | |||||
| FM Radio | - | - | Yes | - | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes | Yes |
| Music Player | - | n/a | Yes | n/a | n/a |
| Photo & Video | |||||
| DLNA | - | - | - | - | Yes |
| TV Output | - | - | - | - | Yes |
| Power | |||||
| Fast Charging | - | Yes | - | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | Yes | n/a | n/a |
| Calculator | - | n/a | Yes | n/a | n/a |
| Calendar | - | n/a | Yes | n/a | n/a |
| Voice Memo | - | n/a | Yes | n/a | n/a |
| Software | |||||
| Games | - | n/a | - | n/a | n/a |
| Voice | |||||
| HD Voice | - | Yes | Yes | - | - |
| Push-To-Talk | - | - | Yes | - | - |
| Speaker Phone | - | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Ericsson R278d | Cricket Debut S2 / AT&T Calypso 4 | Sonim XP3 | ZTE Z998 / Unico LTE | Sony Xperia ion | |
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 | Sonim XP3 | ZTE Z998 / Unico LTE | Sony Xperia ion |
