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| Phone | ZTE Z331 | Samsung Galaxy S6 (GSM) | Coolpad Quattro 4G | LG K30 2018 (GSM) |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
5.1" diag. 16 : 9 |
4" diag. 5 : 3 |
5.3" diag. 16 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
1440 x 2560 pixels (~576 ppi) AMOLED |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~277 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz |
| Battery | 950 mAh | 2,550 mAh | 1,600 mAh | 2,880 mAh |
| Processor | ? | 2.1 GHz Samsung Exynos 7420 | ? | 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) |
| RAM | ? | 3 GB | ? | 2 GB |
| Storage | ? raw hardware | 32 GB * | 512 MB | 32 GB * |
| Main Camera | 3 megapixel | 16 megapixel | 3 megapixel | 13 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QCIF (176 x 144) | 4K UHD | VGA (640 x 480) | 1080p HD |
| Front Camera | - | 5 megapixel | Yes | 5 megapixel |
| Weight |
4 oz (113g) |
4.87 oz (138g) |
3.31 oz (94g) |
5.93 oz (168g) |
| Dimensions |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm) |
4.96" x 2.6" x 0.51" (126 x 66 x 13 mm) |
5.85" x 2.95" x 0.34" (149 x 75 x 8.6 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4 CDMA: 850, 1700, 1900 |
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| Data Technology | HSDPA 3.6 | LTE (Cat 6) | LTE (Cat 3) | LTE (Cat 4) |
| Features | ||||
| Fingerprint Reader | - | Yes | - |
Yes stand-alone |
| Flashlight | - | Yes | - | Yes |
| GPS / Location | Yes | n/a | n/a | n/a |
| VR-ready | - | Yes | - | - |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | Yes | - | - |
| MirrorLink | - | Yes | - | - |
| Mobile Hotspot | - | n/a | n/a | n/a |
| NFC | - | Yes | - | - |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes |
Yes Micro-USB |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes |
Yes 4 (802.11 a,b,g,n) |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a |
| Voice Dialing | - | n/a | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a |
| Real-Music Ringers | Yes | n/a | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | n/a | n/a | n/a |
| Instant Messaging | Yes | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a |
| Music | ||||
| FM Radio | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | Yes | Yes | Yes |
| Music Player | Yes | n/a | n/a | n/a |
| Photo & Video | ||||
| DLNA | - | Yes | - | - |
| Miracast | - | Yes | - | - |
| TV Output | - | Yes | - | - |
| Power | ||||
| Fast Charging | - | Yes | - | - |
| Wireless Charging | - | Yes | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a |
| Software | ||||
| Games | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a |
| Voice | ||||
| HD Voice | - | Yes | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| ZTE Z331 | Samsung Galaxy S6 (GSM) | Coolpad Quattro 4G | LG K30 2018 (GSM) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z331 | Samsung Galaxy S6 (GSM) | Coolpad Quattro 4G | LG K30 2018 (GSM) |
