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| Phone | ZTE Blade Z Max | Samsung SCH-A990 | Samsung SGH-E640 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
6" diag. 16 : 9 |
? | ? |
| Display Resolution & Type |
1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? |
| Battery | 4,080 mAh | 1,000 mAh | 800 mAh |
| Processor | 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) | ? | ? |
| RAM | 2 GB | ? | ? |
| Storage | 32 GB | ? raw hardware | ? raw hardware |
| Main Camera | 16 megapixel | 3 megapixel | 1 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 1080p HD | ? | QCIF (176 x 144) |
| Front Camera | 8 megapixel | - | - |
| Weight |
6.58 oz (186g) |
4.4 oz (125g) |
3.17 oz (90g) |
| Dimensions |
6.51" x 3.28" x 0.33" (165 x 83 x 8.3 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
3.37" x 1.78" x 0.93" (86 x 45 x 23.6 mm) |
| Form Factor | Slab | Clamshell | Clamshell |
| Platform / OS | Android | (proprietary) | (proprietary) |
| Network Bands |
4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | LTE (Cat 6) | EVDO r0 | GPRS |
| Features | |||
| Fingerprint Reader |
Yes stand-alone |
- | - |
| Flashlight | Yes | Yes | - |
| GPS / Location | n/a | Yes | - |
| Accessibility | |||
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
- |
| Multiple Languages | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | - |
| Alerts | |||
| Extra Display | - | Yes | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| USB |
Yes USB Type C |
Yes | Yes |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - |
| Contacts | |||
| Picture ID | n/a | Yes | Yes |
| Ringer ID | n/a | Yes | Yes |
| Voice Dialing | n/a | Yes | - |
| Customization | |||
| Custom Graphics | n/a | Yes | Yes |
| Custom Ringtones | n/a | Yes | Yes |
| Real-Music Ringers | n/a | Yes | Yes |
| Data & Network | |||
| Data Tethering | n/a | Yes | - |
| WAP / Web Browser | n/a | Yes | Yes |
| Input | |||
| Predictive Text Entry | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
| Memory | |||
| Memory Card Slot | Yes | Yes | - |
| Messaging | |||
| Email Client | n/a | - | Yes |
| EMS / Picture Messaging | n/a | Yes | Yes |
| MMS | n/a | Yes | Yes |
| Text Messaging Templates | n/a | Yes | Yes |
| Music | |||
| FM Radio | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | - | - |
| Music Player | n/a | Yes | Yes |
| Stereo Speakers | - | Yes | - |
| Photo & Video | |||
| TV Output | - | Yes | - |
| Power | |||
| Fast Charging | Yes | - | - |
| Productivity | |||
| Alarm | n/a | Yes | Yes |
| Calculator | n/a | Yes | Yes |
| Calendar | n/a | Yes | Yes |
| To-Do List | n/a | - | Yes |
| Voice Memo | n/a | Yes | Yes |
| Software | |||
| BREW | n/a | Yes | - |
| Games | n/a | Yes | Yes |
| Java (J2ME) | n/a | - | Yes |
| Voice | |||
| HD Voice | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes |
| ZTE Blade Z Max | Samsung SCH-A990 | Samsung SGH-E640 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Blade Z Max | Samsung SCH-A990 | Samsung SGH-E640 |
