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| Phone | ZTE Z998 / Unico LTE | Samsung Galaxy S6 (GSM) | Samsung SPH-A660 / VI660 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
4.5" diag. 16 : 9 |
5.1" diag. 16 : 9 |
? |
| Display Resolution & Type |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
1440 x 2560 pixels (~576 ppi) AMOLED |
128 x 160 pixels LCD (Color) |
| Display Refresh | 60 Hz | 60 Hz | ? |
| Battery | 2,070 mAh | 2,550 mAh | ? |
| Processor | 1.2 GHz Qualcomm Snapdragon 400 MSM8930 | 2.1 GHz Samsung Exynos 7420 | ? |
| RAM | 1 GB | 3 GB | ? |
| Storage | 4 GB | 32 GB * | ? raw hardware |
| Main Camera | 5 megapixel | 16 megapixel | - |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | 4K UHD | - |
| Front Camera | 1 megapixel | 5 megapixel | - |
| Weight |
4.8 oz (136g) |
4.87 oz (138g) |
3.54 oz (100g) |
| Dimensions |
5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm) |
5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm) |
3.3" x 1.8" x 0.87" (84 x 46 x 22.1 mm) |
| Form Factor | Slab | Slab | Clamshell |
| Platform / OS | Android | Android | (proprietary) |
| Network Bands |
CDMA: 850, 1900 AMPS: 850 |
||
| Data Technology | LTE (Cat 3) | LTE (Cat 6) | 1xRTT |
| Features | |||
| Fingerprint Reader | - | Yes | - |
| Flashlight | - | Yes | - |
| GPS / Location | n/a | n/a | Yes |
| VR-ready | - | Yes | - |
| Accessibility | |||
| Adjustable Text Size | n/a | n/a | - |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | - |
| Infrared (IR) | - | Yes | - |
| MirrorLink | - | Yes | - |
| Mobile Hotspot | n/a | n/a | - |
| NFC | - | Yes | - |
| USB |
Yes Micro-USB |
Yes Micro-USB |
- |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | |||
| Picture ID | n/a | n/a | Yes |
| Ringer ID | n/a | n/a | Yes |
| Voice Dialing | n/a | n/a | Yes |
| Customization | |||
| Custom Graphics | n/a | n/a | Yes |
| Custom Ringtones | n/a | n/a | Yes |
| Real-Music Ringers | n/a | n/a | - |
| Data & Network | |||
| Data Tethering | n/a | n/a | Yes |
| WAP / Web Browser | n/a | n/a | Yes |
| Input | |||
| Predictive Text Entry | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||
| Memory Card Slot | Yes | - | - |
| Messaging | |||
| Email Client | n/a | n/a | - |
| Instant Messaging | n/a | n/a | - |
| MMS | n/a | n/a | - |
| Text Messaging Templates | n/a | n/a | - |
| Music | |||
| Headphone Jack (3.5mm) | Yes | Yes | - |
| Music Player | n/a | n/a | - |
| Photo & Video | |||
| DLNA | - | Yes | - |
| Miracast | - | Yes | - |
| TV Output | - | Yes | - |
| Power | |||
| Fast Charging | - | Yes | - |
| Wireless Charging | - | Yes | - |
| Productivity | |||
| Alarm | n/a | n/a | Yes |
| Calculator | n/a | n/a | Yes |
| Calendar | n/a | n/a | Yes |
| To-Do List | n/a | n/a | Yes |
| Voice Memo | n/a | n/a | Yes |
| Software | |||
| Games | n/a | n/a | Yes |
| Java (J2ME) | n/a | n/a | Yes |
| Voice | |||
| HD Voice | - | Yes | - |
| Headset Jack (2.5 mm) | n/a | n/a | Yes |
| Speaker Phone | Yes | Yes | - |
| * Some versions only | |||
| ZTE Z998 / Unico LTE | Samsung Galaxy S6 (GSM) | Samsung SPH-A660 / VI660 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z998 / Unico LTE | Samsung Galaxy S6 (GSM) | Samsung SPH-A660 / VI660 |
