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| Phone | Ericsson T39 | Wiko Voix | Microsoft Lumia 640 | Apple iPhone 4 (GSM) |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
6.5" diag. 20 : 9 |
5" diag. 16 : 9 |
3.5" diag. 5 : 3 |
| Display Resolution & Type |
? LCD (Grayscale) |
720 x 1600 pixels (~270 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | 60 Hz |
| Battery | ? | 3,400 mAh | 2,500 mAh | ? |
| Processor | ? | 2 GHz MediaTek Helio A22 (MT6761) | 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) | Apple A4 |
| RAM | ? | 3 GB | 1 GB | ? |
| Storage | ? raw hardware | 32 GB | 8 GB | 32 GB * |
| Main Camera | - | 13 megapixel | 8 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | 1080p HD | 1080p HD | 720p HD |
| Front Camera | - | 5 megapixel | 1 megapixel | Yes |
| Weight |
3.03 oz (86g) |
6.2 oz (176g) |
5.11 oz (145g) |
4.8 oz (136g) |
| Dimensions |
3.78" x 1.97" x 0.71" (96 x 50 x 18 mm) |
6.57" x 2.98" x 0.33" (167 x 76 x 8.4 mm) |
5.56" x 2.84" x 0.35" (141 x 72 x 8.9 mm) |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
| Form Factor | Flip | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Windows | iOS |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 25, 26, 41, 66, 71 WCDMA: 2, 4, 5 GSM: 850, 1900 |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | LTE (Cat 6) | LTE (Cat 4) | HSPA 7.2 |
| Features | ||||
| Fingerprint Reader | - |
Yes stand-alone |
- | - |
| Flashlight | - | Yes | - | - |
| GPS / Location | - | n/a | n/a | n/a |
| 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 M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | Yes |
| Alerts | ||||
| Ringer Profiles | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Infrared (IR) | Yes | - | - | - |
| Mobile Hotspot | - | n/a | n/a | n/a |
| NFC | - | - | Yes | - |
| USB | - |
Yes USB Type C |
Yes Micro-USB |
Yes |
| 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 | - | n/a | n/a | n/a |
| Ringer ID | - | n/a | n/a | n/a |
| Voice Dialing | Yes | n/a | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | - |
| Messaging | ||||
| Email Client | - | n/a | n/a | n/a |
| MMS | - | 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 |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Miracast | - | - | Yes | - |
| TV Output | - | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a |
| To-Do List | - | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a |
| Software | ||||
| Games | Yes | n/a | n/a | n/a |
| Voice | ||||
| HD Voice | - | Yes | Yes | - |
| Speaker Phone | - | Yes | Yes | Yes |
| * Some versions only | ||||
| Ericsson T39 | Wiko Voix | Microsoft Lumia 640 | Apple iPhone 4 (GSM) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson T39 | Wiko Voix | Microsoft Lumia 640 | Apple iPhone 4 (GSM) |
