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| Phone | Samsung SGH-X640 | ZTE Z331 | Motorola Moto Z2 Force | Coolpad Conjr | HTC EVO Design 4G / Hero S (CDMA) |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2.4" diag. 4 : 3 |
5.5" diag. 16 : 9 |
5" diag. 16 : 9 |
4" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
1440 x 2560 pixels (~534 ppi) AMOLED |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
540 x 960 pixels (~275 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz | 60 Hz |
| Battery | 800 mAh | 950 mAh | 2,730 mAh | 2,500 mAh | 1,520 mAh |
| Processor | ? | ? | 2.4 GHz Qualcomm Snapdragon 835 (MSM8998) | 1 GHz MediaTek MT6735 | 1.2 GHz Qualcomm Snapdragon S2 MSM8655 |
| RAM | ? | ? | 4 GB | 3 GB | 768 MB |
| Storage | ? raw hardware | ? raw hardware | 64 GB | 16 GB | 4 GB |
| Main Camera | Yes | 3 megapixel | 12 megapixel | 13 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | QCIF (176 x 144) | 4K UHD | 1080p HD | 720p HD |
| Front Camera | - | - | 5 megapixel | 8 megapixel | 1 megapixel |
| Weight |
3 oz (85g) |
4 oz (113g) |
5.04 oz (143g) |
5.14 oz (146g) |
5.22 oz (148g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
6.13" x 2.99" x 0.24" (156 x 76 x 6.1 mm) |
5.72" x 2.86" x 0.35" (145 x 73 x 8.8 mm) |
4.78" x 2.44" x 0.46" (122 x 62 x 11.8 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 41, 66 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 7, 12 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | HSDPA 3.6 | LTE (Cat 16) | LTE (Cat 4) | WiMAX |
| Features | |||||
| Barometer | - | - | Yes | - | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
Yes stand-alone |
- |
| Flashlight | - | - | Yes | Yes | Yes |
| GPS / Location | - | Yes | n/a | n/a | n/a |
| VR-ready | - | - | Yes | - | - |
| Water-Resistant | - | - | Yes | - | - |
| Accessibility | |||||
| Hearing Aid Compatible | - |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | 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 |
| Mobile Hotspot | - | - | n/a | n/a | n/a |
| NFC | - | - | Yes | - | - |
| USB | - |
Yes Micro-USB |
Yes USB Type C |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | |||||
| Picture ID | Yes | Yes | n/a | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a | n/a |
| Voice Dialing | - | - | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | 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 |
| Dual-SIM | - | - | Yes * | Yes | - |
| WAP / Web Browser | Yes | Yes | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | Yes | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | - | n/a | n/a | n/a |
| Instant Messaging | - | Yes | n/a | n/a | n/a |
| MMS | Yes | Yes | n/a | n/a | n/a |
| Text Messaging Templates | Yes | Yes | n/a | n/a | n/a |
| Music | |||||
| FM Radio | - | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | - | - | Yes | Yes |
| Music Player | - | Yes | n/a | n/a | n/a |
| Photo & Video | |||||
| DLNA | - | - | - | - | Yes |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a | n/a |
| To-Do List | Yes | - | n/a | n/a | n/a |
| Voice Memo | Yes | Yes | n/a | n/a | n/a |
| Software | |||||
| Games | Yes | Yes | n/a | n/a | n/a |
| Java (J2ME) | Yes | Yes | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | - | Yes | - | - |
| Headset Jack (2.5 mm) | Yes | - | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | ZTE Z331 | Motorola Moto Z2 Force | Coolpad Conjr | HTC EVO Design 4G / Hero S (CDMA) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | ZTE Z331 | Motorola Moto Z2 Force | Coolpad Conjr | HTC EVO Design 4G / Hero S (CDMA) |
