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| Phone | Microsoft Lumia 640 | Samsung Vibrant (Galaxy S) | ZTE Essenze C70 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
5" diag. 16 : 9 |
4" diag. 5 : 3 |
2" diag. 4 : 3 |
| Display Resolution & Type |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) AMOLED |
176 x 220 pixels (~141 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? |
| Battery | 2,500 mAh | 1,500 mAh | 900 mAh |
| Processor | 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) | 1 GHz Samsung Hummingbird Cortex A8 | ? |
| RAM | 1 GB | ? | ? |
| Storage | 8 GB | 16 GB | ? raw hardware |
| Main Camera | 8 megapixel | 5 megapixel | Yes |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 1080p HD | 720p HD | - |
| Front Camera | 1 megapixel | - | - |
| Weight |
5.11 oz (145g) |
4.16 oz (118g) |
4.12 oz (117g) |
| Dimensions |
5.56" x 2.84" x 0.35" (141 x 72 x 8.9 mm) |
4.82" x 2.54" x 0.39" (122 x 65 x 9.9 mm) |
3.9" x 1.8" x 0.72" (99 x 46 x 18.3 mm) |
| Form Factor | Slab | Slab | Slide |
| Platform / OS | Windows | Android | (proprietary) |
| Network Bands |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
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| Data Technology | LTE (Cat 4) | HSPA 7.2 | 1xRTT |
| Features | |||
| GPS / Location | n/a | n/a | Yes |
| Accessibility | |||
| Adjustable Text Size | n/a | n/a | - |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Mobile Hotspot | n/a | n/a | - |
| NFC | Yes | - | - |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes Mini-USB |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
Yes | - |
| Contacts | |||
| Picture ID | n/a | n/a | - |
| Ringer ID | n/a | n/a | Yes |
| Voice Dialing | n/a | n/a | - |
| Customization | |||
| Custom Graphics | n/a | n/a | Yes |
| Custom Ringtones | n/a | n/a | Yes |
| Real-Music Ringers | n/a | n/a | Yes |
| Data & Network | |||
| Data Tethering | n/a | n/a | - |
| WAP / Web Browser | n/a | n/a | Yes |
| Input | |||
| Predictive Text Entry | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||
| Memory Card Slot | Yes | Yes | - |
| Messaging | |||
| Email Client | n/a | n/a | Yes |
| Instant Messaging | n/a | n/a | Yes |
| MMS | n/a | n/a | Yes |
| Text Messaging Templates | n/a | n/a | Yes |
| Music | |||
| FM Radio | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | - |
| Music Player | n/a | n/a | - |
| Photo & Video | |||
| DLNA | Yes | Yes | - |
| Miracast | Yes | - | - |
| Productivity | |||
| Alarm | n/a | n/a | Yes |
| Calculator | n/a | n/a | Yes |
| Calendar | n/a | n/a | Yes |
| To-Do List | n/a | n/a | - |
| Voice Memo | n/a | n/a | Yes |
| Software | |||
| BREW | n/a | n/a | Yes |
| Games | n/a | n/a | Yes |
| Voice | |||
| HD Voice | Yes | - | - |
| Headset Jack (2.5 mm) | n/a | n/a | Yes |
| Push-To-Talk | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes |
| Microsoft Lumia 640 | Samsung Vibrant (Galaxy S) | ZTE Essenze C70 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Microsoft Lumia 640 | Samsung Vibrant (Galaxy S) | ZTE Essenze C70 |
