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| Phone | Samsung Galaxy S6 (GSM) | ZTE Blade Vantage | Samsung SGH-X640 | Samsung VI-A820 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
5.1" diag. 16 : 9 |
5" diag. 16 : 9 |
? | ? |
| Display Resolution & Type |
1440 x 2560 pixels (~576 ppi) AMOLED |
480 x 854 pixels (~196 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (STN) |
| Display Refresh | 60 Hz | 60 Hz | ? | ? |
| Battery | 2,550 mAh | 2,500 mAh | 800 mAh | 1,000 mAh |
| Processor | 2.1 GHz Samsung Exynos 7420 | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? | ? |
| RAM | 3 GB | 2 GB | ? | ? |
| Storage | 32 GB * | 16 GB | ? raw hardware | ? raw hardware |
| Main Camera | 16 megapixel | 8 megapixel | Yes | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 4K UHD | 720p HD | - | - |
| Front Camera | 5 megapixel | 2 megapixel | - | - |
| Weight |
4.87 oz (138g) |
5.29 oz (150g) |
3 oz (85g) |
3.14 oz (89g) |
| Dimensions |
5.65" x 2.78" x 0.27" (143 x 71 x 6.8 mm) |
5.73" x 2.85" x 0.36" (146 x 72 x 9.2 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.56" x 1.88" x 1.06" (90 x 48 x 26.9 mm) |
| Form Factor | Slab | Slab | Clamshell | Clamshell |
| Platform / OS | Android | Android | (proprietary) | (proprietary) |
| Network Bands |
4G LTE: 2, 4, 5, 13 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
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| Data Technology | LTE (Cat 6) | LTE (Cat 4) | GPRS | 1xRTT |
| Features | ||||
| Fingerprint Reader | Yes | - | - | - |
| Flashlight | Yes | Yes | - | - |
| GPS / Location | n/a | n/a | - | Yes |
| VR-ready | Yes | - | - | - |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
- | - |
| Multiple Languages | n/a | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | Yes |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | - |
| Infrared (IR) | Yes | - | - | - |
| MirrorLink | Yes | - | - | - |
| NFC | Yes | - | - | - |
| USB |
Yes Micro-USB |
Yes Micro-USB |
- | - |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
- | - |
| Contacts | ||||
| Picture ID | n/a | n/a | Yes | Yes |
| Ringer ID | n/a | n/a | Yes | Yes |
| Voice Dialing | n/a | n/a | - | Yes |
| Customization | ||||
| Custom Graphics | n/a | n/a | Yes | Yes |
| Custom Ringtones | n/a | n/a | Yes | Yes |
| Data & Network | ||||
| WAP / Web Browser | n/a | n/a | Yes | Yes |
| Input | ||||
| Predictive Text Entry | n/a | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
- | - |
| Memory | ||||
| Memory Card Slot | - | Yes | - | - |
| Messaging | ||||
| EMS / Picture Messaging | n/a | n/a | Yes | - |
| MMS | n/a | n/a | Yes | - |
| Text Messaging Templates | n/a | n/a | Yes | - |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | Yes | - | - |
| Photo & Video | ||||
| DLNA | Yes | - | - | - |
| Miracast | Yes | - | - | - |
| TV Output | Yes | - | - | - |
| Power | ||||
| Fast Charging | Yes | - | - | - |
| Wireless Charging | Yes | - | - | - |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | Yes |
| Calculator | n/a | n/a | Yes | Yes |
| Calendar | n/a | n/a | Yes | Yes |
| To-Do List | n/a | n/a | Yes | Yes |
| Voice Memo | n/a | n/a | Yes | Yes |
| Software | ||||
| Games | n/a | n/a | Yes | Yes |
| Java (J2ME) | n/a | n/a | Yes | Yes |
| Voice | ||||
| HD Voice | Yes | Yes | - | - |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | Yes |
| Push-To-Talk | - | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung Galaxy S6 (GSM) | ZTE Blade Vantage | Samsung SGH-X640 | Samsung VI-A820 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy S6 (GSM) | ZTE Blade Vantage | Samsung SGH-X640 | Samsung VI-A820 |
