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| Phone | Samsung SCH-A990 | Motorola Droid Maxx | ZTE Z331 | ZTE ZMAX 2 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
5" diag. 16 : 9 |
2.4" diag. 4 : 3 |
5.5" diag. 16 : 9 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) AMOLED |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~267 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz |
| Battery | 1,000 mAh | 3,500 mAh | 950 mAh | 3,000 mAh |
| Processor | ? | 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960T | ? | 1.2 GHz Qualcomm Snapdragon 400 (MSM8916) |
| RAM | ? | 2 GB | ? | 2 GB |
| Storage | ? raw hardware | 32 GB | ? raw hardware | 16 GB |
| Main Camera | 3 megapixel | 10 megapixel | 3 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | 1080p HD | QCIF (176 x 144) | 720p HD |
| Front Camera | - | 2 megapixel | - | 2 megapixel |
| Weight |
4.4 oz (125g) |
5.89 oz (167g) |
4 oz (113g) |
5.99 oz (170g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.41" x 2.8" x 0.33" (137 x 71 x 8.5 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
6.06" x 2.99" x 0.37" (154 x 76 x 9.4 mm) |
| Form Factor | Clamshell | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | Android | (proprietary) | Android |
| Network Bands |
CDMA: 850, 1900 |
4G LTE: 4, 13 WCDMA: 1, 2, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | EVDO r0 | LTE (Cat 3) | HSDPA 3.6 | LTE (Cat 4) |
| Features | ||||
| Flashlight | Yes | - | - | - |
| GPS / Location | Yes | n/a | Yes | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | - | n/a |
| Hearing Aid Compatible |
Yes M3 (mostly 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 |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | Yes | - |
| Ringer Profiles | - | - | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | - | n/a |
| NFC | - | Yes | - | - |
| USB | Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 a,b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | Yes | n/a | Yes | n/a |
| Ringer ID | Yes | n/a | Yes | n/a |
| Voice Dialing | Yes | n/a | - | 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 |
| Touch Screen | - |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | Yes | n/a |
| EMS / Picture Messaging | Yes | n/a | - | n/a |
| Instant Messaging | - | n/a | Yes | n/a |
| MMS | Yes | n/a | Yes | n/a |
| Text Messaging Templates | Yes | n/a | Yes | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | - | Yes |
| Music Player | Yes | n/a | Yes | n/a |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| Miracast | - | Yes | - | - |
| TV Output | Yes | - | - | - |
| Power | ||||
| Wireless Charging | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | n/a |
| Calculator | Yes | n/a | Yes | n/a |
| Calendar | Yes | 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 | ||||
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SCH-A990 | Motorola Droid Maxx | ZTE Z331 | ZTE ZMAX 2 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | Motorola Droid Maxx | ZTE Z331 | ZTE ZMAX 2 |
