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| Phone | Samsung SGH-X640 | ZTE Z221 | LG G Flex2 (GSM) | HTC One M9 (GSM) | ZTE Blade Vantage |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2" diag. 4 : 3 |
5.5" diag. 16 : 9 |
5" diag. 16 : 9 |
5" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~401 ppi) AMOLED |
1080 x 1920 pixels (~441 ppi) LCD (TFT/TFD) |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz | 60 Hz |
| Battery | 800 mAh | 900 mAh | 3,000 mAh | 2,840 mAh | 2,500 mAh |
| Processor | ? | ? | Qualcomm Snapdragon 810 | 2 GHz Qualcomm Snapdragon 810 (MSM8994) | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) |
| RAM | ? | ? | 3 GB * | 3 GB | 2 GB |
| Storage | ? raw hardware | 142 MB | 32 GB * | 32 GB | 16 GB |
| Main Camera | Yes | Yes | 13 megapixel | 20 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | QCIF (176 x 144) | 4K UHD | 4K UHD | 720p HD |
| Front Camera | - | - | 2 megapixel | 4 megapixel | 2 megapixel |
| Weight |
3 oz (85g) |
3.24 oz (92g) |
5.36 oz (152g) |
5.54 oz (157g) |
5.29 oz (150g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
5.87" x 2.96" x 0.35" (149 x 75 x 8.9 mm) |
5.69" x 2.74" x 0.38" (145 x 70 x 9.6 mm) |
5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 12, 17, 29 WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 13 |
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| Data Technology | GPRS | HSDPA 3.6 | LTE (Cat 4) | LTE (Cat 9) | LTE (Cat 4) |
| Features | |||||
| Flashlight | - | - | - | Yes | Yes |
| GPS / Location | - | Yes | n/a | n/a | n/a |
| Water-Resistant | - | - | - |
Yes IPX3 (falling spray) |
- |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
Yes |
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 |
| Infrared (IR) | - | - | Yes | - | - |
| Mobile Hotspot | - | - | n/a | n/a | n/a |
| NFC | - | - | Yes | Yes | - |
| USB | - | Yes |
Yes Micro-USB |
Yes Micro-USB |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 5 (802.11 a,ac,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 |
| 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 | - | - | n/a | n/a | n/a |
| 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 |
| 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 | Yes |
| Music Player | - | - | n/a | n/a | n/a |
| Stereo Speakers | - | - | - | Yes | - |
| Photo & Video | |||||
| DLNA | - | - | Yes | Yes | - |
| Miracast | - | - | Yes | Yes | - |
| TV Output | - | - | Yes | Yes | - |
| Power | |||||
| Fast Charging | - | - | Yes | 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 | Yes | Yes |
| Headset Jack (2.5 mm) | Yes | - | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | ZTE Z221 | LG G Flex2 (GSM) | HTC One M9 (GSM) | ZTE Blade Vantage | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | ZTE Z221 | LG G Flex2 (GSM) | HTC One M9 (GSM) | ZTE Blade Vantage |
