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| Phone | ZTE Z431 / Altair | Cricket Debut S2 / AT&T Calypso 4 | Sony Ericsson K500 | LG Optimus G (CDMA) |
| Current U.S. Carriers | (none) | AT&T | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
6.1" diag. 19.5 : 9 |
? |
4.7" diag. 5 : 3 |
| Display Resolution & Type |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
768 x 1280 pixels (~318 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz |
| Battery | 1,000 mAh | 3,000 mAh | ? | 2,100 mAh |
| Processor | ? | 2 GHz MediaTek Helio A22 (MT6761WB) | ? | 1.5 GHz Qualcomm Snapdragon S4 Pro |
| RAM | ? | 3 GB | ? | 2 GB |
| Storage | ? raw hardware | 64 GB | ? raw hardware | 32 GB |
| Main Camera | 2 megapixel | 8 megapixel | Yes | 13 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QVGA (320 x 240) | ? | ? | 1080p HD |
| Front Camera | - | 5 megapixel | - | 1 megapixel |
| Weight |
3.52 oz (100g) |
5.64 oz (160g) |
2.82 oz (80g) |
5.11 oz (145g) |
| Dimensions |
4.49" x 2.39" x 0.41" (114 x 61 x 10.4 mm) |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
4.02" x 1.81" x 0.55" (102 x 46 x 14 mm) |
5.19" x 2.71" x 0.33" (132 x 69 x 8.5 mm) |
| Form Factor | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | (proprietary) | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
GSM: 900, 1800, 1900 |
4G LTE: 25 CDMA: 800, 850, 1900 |
| Data Technology | ? | LTE (Cat 4) | GPRS | LTE (Cat 3) |
| Features | ||||
| Flashlight | - | Yes | - | - |
| GPS / Location | Yes | n/a | - | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | - | n/a |
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
- |
Yes M4 (very compatible) |
| Multiple Languages | Yes | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | - | Yes |
| Alerts | ||||
| Ringer Profiles | Yes | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | Yes |
| Infrared (IR) | - | - | Yes | - |
| Mobile Hotspot | - | n/a | - | n/a |
| NFC | - | - | - | Yes |
| USB |
Yes Micro-USB |
Yes USB Type C |
Yes |
Yes Micro-USB |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 4 (802.11 a,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | n/a | Yes | n/a |
| Ringer ID | Yes | n/a | Yes | n/a |
| Voice Dialing | - | n/a | Yes | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | Yes | n/a |
| Custom Ringtones | Yes | n/a | Yes | n/a |
| Real-Music Ringers | Yes | n/a | Yes | n/a |
| Data & Network | ||||
| Data Tethering | Yes | n/a | Yes | n/a |
| WAP / Web Browser | Yes | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - |
| Touch Screen | - |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | - |
| Messaging | ||||
| Email Client | Yes | n/a | Yes | n/a |
| EMS / Picture Messaging | - | n/a | Yes | n/a |
| Instant Messaging | - | n/a | Yes | n/a |
| MMS | Yes | n/a | Yes | n/a |
| Text Messaging Templates | Yes | n/a | - | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes |
| Music Player | Yes | n/a | - | n/a |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| Miracast | - | - | - | Yes |
| TV Output | - | - | - | Yes |
| Power | ||||
| Fast Charging | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | n/a |
| Calculator | Yes | n/a | Yes | n/a |
| Calendar | Yes | n/a | Yes | n/a |
| To-Do List | - | n/a | Yes | n/a |
| Voice Memo | Yes | n/a | Yes | n/a |
| Software | ||||
| BREW | Yes | n/a | - | n/a |
| Games | Yes | n/a | Yes | n/a |
| Java (J2ME) | - | n/a | Yes | n/a |
| Voice | ||||
| HD Voice | - | Yes | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| ZTE Z431 / Altair | Cricket Debut S2 / AT&T Calypso 4 | Sony Ericsson K500 | LG Optimus G (CDMA) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z431 / Altair | Cricket Debut S2 / AT&T Calypso 4 | Sony Ericsson K500 | LG Optimus G (CDMA) |
