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| Phone | Samsung SGH-X640 | BLU Vivo XI | Sony Xperia XZ1 | ZTE Flash | LG 4NE1 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Not yet released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
5.9" diag. 19 : 9 |
5.2" diag. 16 : 9 |
4.5" diag. 16 : 9 |
? |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
720 x 1520 pixels (~285 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~424 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~326 ppi) LCD (TFT/TFD) |
? |
| Display Refresh | ? | 60 Hz | 60 Hz | 60 Hz | ? |
| Battery | 800 mAh | 3,000 mAh | 2,700 mAh | 1,780 mAh | ? |
| Processor | ? | 2 GHz MediaTek Helio P22 | 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 | ? |
| RAM | ? | 3 GB | 4 GB | 1 GB | ? |
| Storage | ? raw hardware | 32 GB | 64 GB | 8 GB | ? raw hardware |
| Main Camera | Yes | 16 megapixel | 19 megapixel | 12 megapixel | - |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 1080p HD | 4K UHD | 1080p HD | - |
| Front Camera | - | 16 megapixel | 13 megapixel | 1 megapixel | - |
| Weight |
3 oz (85g) |
6.6 oz (187g) |
5.5 oz (156g) |
5.2 oz (147g) |
3.7 oz (105g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.89" x 2.87" x 0.31" (150 x 73 x 7.9 mm) |
5.82" x 2.89" x 0.29" (148 x 73 x 7.4 mm) |
5.27" x 2.56" x 0.38" (134 x 65 x 9.7 mm) |
4.41" x 1.73" x 0.75" (112 x 44 x 19.1 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab | Flip |
| Platform / OS | (proprietary) | Android | Android | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 29, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 25 CDMA: 800, 850, 1900 |
CDMA: 1900 AMPS: 850 |
| Data Technology | GPRS | LTE (Cat 6) | LTE (Cat 16) | LTE (Cat 3) | - |
| Features | |||||
| Barometer | - | - | Yes | - | - |
| Fingerprint Reader | - |
Yes stand-alone |
Yes * stand-alone |
- | - |
| Flashlight | - | Yes | Yes | - | - |
| GPS / Location | - | n/a | n/a | n/a | - |
| Water-Resistant | - | - |
Yes IPX8 (SCUBA) |
- | - |
| Accessibility | |||||
| Adjustable Text Size | - | n/a | n/a | n/a | - |
| Hearing Aid Compatible | - | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
- |
| Multiple Languages | Yes | n/a | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | - | Yes | Yes | - |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | - |
| Mobile Hotspot | - | n/a | n/a | n/a | - |
| NFC | - | - | Yes | Yes | - |
| USB | - |
Yes Micro-USB |
Yes USB Type C |
Yes Micro-USB |
- |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | n/a | - |
| Ringer ID | Yes | n/a | n/a | n/a | Yes |
| Voice Dialing | - | n/a | n/a | n/a | Yes |
| Customization | |||||
| Changeable Body Plates | - | - | - | - | Yes |
| Custom Graphics | Yes | n/a | n/a | n/a | Yes |
| Custom Ringtones | Yes | n/a | n/a | n/a | Yes |
| Real-Music Ringers | - | n/a | n/a | n/a | - |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | n/a | Yes |
| Dual-SIM | - | Yes | Yes * | - | - |
| WAP / Web Browser | Yes | n/a | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | - |
| Messaging | |||||
| Email Client | - | n/a | n/a | n/a | - |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a | - |
| Instant Messaging | - | 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 | - | n/a | n/a | n/a | - |
| Stereo Speakers | - | - | Yes | - | - |
| Photo & Video | |||||
| DLNA | - | - | Yes | - | - |
| Miracast | - | - | Yes | - | - |
| Power | |||||
| Fast Charging | - | Yes | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | n/a | - |
| Calculator | Yes | n/a | n/a | n/a | Yes |
| Calendar | Yes | n/a | n/a | n/a | Yes |
| To-Do List | Yes | n/a | n/a | n/a | - |
| Voice Memo | Yes | n/a | n/a | n/a | Yes |
| Software | |||||
| Games | Yes | n/a | n/a | n/a | Yes |
| Java (J2ME) | Yes | n/a | n/a | n/a | - |
| Voice | |||||
| HD Voice | - | - | Yes | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | BLU Vivo XI | Sony Xperia XZ1 | ZTE Flash | LG 4NE1 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | BLU Vivo XI | Sony Xperia XZ1 | ZTE Flash | LG 4NE1 |
