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| Phone | ZTE Z431 / Altair | LG G Flex (U.S. GSM) | Samsung Galaxy Alpha |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
6" diag. 16 : 9 |
4.7" diag. 16 : 9 |
| Display Resolution & Type |
320 x 240 pixels (~167 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~245 ppi) AMOLED |
720 x 1280 pixels (~312 ppi) AMOLED |
| Display Refresh | ? | 60 Hz | 60 Hz |
| Battery | 1,000 mAh | 3,500 mAh | 1,860 mAh |
| Processor | ? | 2.3 GHz Qualcomm Snapdragon 800 | 2.5 GHz Qualcomm Snapdragon 801 (MSM8974-AC) |
| RAM | ? | 2 GB | 2 GB |
| Storage | ? raw hardware | 32 GB | 32 GB |
| Main Camera | 2 megapixel | 13 megapixel | 12 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | QVGA (320 x 240) | 4K UHD | 4K UHD |
| Front Camera | - | 2 megapixel | 2 megapixel |
| Weight |
3.52 oz (100g) |
6.24 oz (177g) |
4.06 oz (115g) |
| Dimensions |
4.49" x 2.39" x 0.41" (114 x 61 x 10.4 mm) |
6.32" x 3.21" x 0.31" (160 x 82 x 8 mm) |
5.21" x 2.58" x 0.26" (132 x 66 x 6.7 mm) |
| Form Factor | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | ? | LTE (Cat 4) | LTE (Cat 4) |
| Features | |||
| Fingerprint Reader | - | - | Yes |
| Flashlight | - | Yes | 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 M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Alerts | |||
| Ringer Profiles | Yes | - | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Infrared (IR) | - | Yes | - |
| Mobile Hotspot | - | n/a | n/a |
| NFC | - | Yes | Yes |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | |||
| Picture ID | Yes | n/a | n/a |
| Ringer ID | Yes | n/a | n/a |
| Voice Dialing | - | n/a | n/a |
| Customization | |||
| Custom Graphics | Yes | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a |
| Real-Music Ringers | Yes | 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 |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | - | - |
| Messaging | |||
| Email Client | Yes | n/a | n/a |
| Instant Messaging | - | n/a | n/a |
| MMS | Yes | n/a | 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 |
| Stereo Speakers | - | - | Yes |
| Photo & Video | |||
| DLNA | - | Yes | - |
| Miracast | - | Yes | - |
| TV Output | - | Yes | Yes |
| Productivity | |||
| Alarm | Yes | n/a | n/a |
| Calculator | Yes | n/a | n/a |
| Calendar | Yes | n/a | n/a |
| To-Do List | - | n/a | n/a |
| Voice Memo | Yes | n/a | n/a |
| Software | |||
| BREW | Yes | n/a | n/a |
| Games | Yes | n/a | n/a |
| Voice | |||
| HD Voice | - | Yes * | Yes |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| ZTE Z431 / Altair | LG G Flex (U.S. GSM) | Samsung Galaxy Alpha | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z431 / Altair | LG G Flex (U.S. GSM) | Samsung Galaxy Alpha |
