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| Phone | ZTE Z331 | HTC Amaze 4G | Samsung Galaxy S6 (GSM) | Samsung Galaxy S7 edge | Bold N2 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
4.3" diag. 16 : 9 |
5.1" diag. 16 : 9 |
5.5" diag. 16 : 9 |
6.6" diag. 19.5 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
540 x 960 pixels (~256 ppi) LCD (TFT/TFD) |
1440 x 2560 pixels (~576 ppi) AMOLED |
1440 x 2560 pixels (~534 ppi) AMOLED |
1080 x 2340 pixels (~390 ppi) AMOLED |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz | 60 Hz |
| Battery | 950 mAh | 1,730 mAh | 2,550 mAh | 3,600 mAh | 4,200 mAh |
| Processor | ? | 1.5 GHz Qualcomm Snapdragon S3 dual-core | 2.1 GHz Samsung Exynos 7420 | 2.2 GHz Qualcomm Snapdragon 820 (MSM8996) | 2.4 GHz MediaTek Dimensity 810 |
| RAM | ? | 1 GB | 3 GB | 4 GB | 8 GB |
| Storage | ? raw hardware | 16 GB | 32 GB * | 32 GB | 256 GB |
| Main Camera | 3 megapixel | 8 megapixel | 16 megapixel | 12 megapixel | 64 megapixel |
| Wide Camera | - | - | - | - | 5 megapixel |
| Tele Camera | - | - | - | - | - |
| Video Capture | QCIF (176 x 144) | 1080p HD | 4K UHD | 4K UHD | 2K / Quad HD |
| Front Camera | - | 2 megapixel | 5 megapixel | 5 megapixel | 16 megapixel |
| Weight |
4 oz (113g) |
6.1 oz (173g) |
4.87 oz (138g) |
5.54 oz (157g) |
7.2 oz (204g) |
| Dimensions |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
5.12" x 2.58" x 0.46" (130 x 66 x 11.7 mm) |
5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm) |
5.94" x 2.86" x 0.3" (151 x 73 x 7.7 mm) |
6.64" x 3.02" x 0.35" (169 x 77 x 8.9 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | Android | Android |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 29, 30, 38, 39, 40, 41 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
5G: 2, 5, 25, 41, 66, 71, 77-C 4G LTE: 2, 4, 5, 12, 13, 25, 26, 41, 66, 71 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | HSDPA 3.6 | HSPA+ 42 | LTE (Cat 6) | LTE (Cat 9) | NR (5G) |
| Features | |||||
| Fingerprint Reader | - | - | Yes | Yes |
Yes in-display (optical) |
| Flashlight | - | Yes | Yes | Yes | Yes |
| GPS / Location | Yes | n/a | n/a | n/a | n/a |
| VR-ready | - | - | Yes | Yes | - |
| Water-Resistant | - | - | - |
Yes IPX8 (SCUBA) |
- |
| Accessibility | |||||
| Hearing Aid Compatible | Yes | Yes | Yes | Yes | - |
| Multiple Languages | Yes | n/a | n/a | n/a | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | - |
| Alerts | |||||
| Extra Display | Yes | - | - | - | - |
| Ringer Profiles | Yes | - | - | - | - |
| Connectivity | |||||
| Bluetooth |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes |
| Infrared (IR) | - | - | Yes | - | - |
| MirrorLink | - | - | Yes | Yes | - |
| Mobile Hotspot | - | n/a | n/a | n/a | n/a |
| NFC | - | Yes | Yes | Yes | - |
| USB |
Yes Micro-USB |
Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi | - |
Yes 4 (802.11 a,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 ac,b,g,n) |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a | n/a |
| Voice Dialing | - | n/a | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a | n/a |
| Real-Music Ringers | Yes | n/a | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | Yes | n/a | n/a | n/a | n/a |
| Dual-SIM | - | - | - | Yes | - |
| WAP / Web Browser | Yes | n/a | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | Yes | Yes | Yes | Yes |
| Memory | |||||
| Memory Card Slot | Yes | Yes | - | Yes | - |
| Messaging | |||||
| Email Client | Yes | n/a | n/a | n/a | n/a |
| Instant Messaging | Yes | n/a | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | 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 | n/a |
| Photo & Video | |||||
| DLNA | - | Yes | Yes | Yes | - |
| Miracast | - | - | Yes | Yes | - |
| TV Output | - | Yes | Yes | - | - |
| Power | |||||
| Fast Charging | - | - | Yes | Yes | Yes |
| Wireless Charging | - | - | Yes | Yes | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a | n/a |
| Software | |||||
| Games | Yes | n/a | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | - | Yes | Yes | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| ZTE Z331 | HTC Amaze 4G | Samsung Galaxy S6 (GSM) | Samsung Galaxy S7 edge | Bold N2 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z331 | HTC Amaze 4G | Samsung Galaxy S6 (GSM) | Samsung Galaxy S7 edge | Bold N2 |
