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| Phone | Samsung SGH-X640 | ZTE Z331 | Apple iPhone 5 (CDMA / global) | LG Stylo 4 | Sony Ericsson K850 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2.4" diag. 4 : 3 |
4" diag. 16 : 9 |
6.2" diag. 18 : 9 |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
640 x 1136 pixels (~326 ppi) LCD (TFT/TFD) |
1080 x 2160 pixels (~390 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | 60 Hz | ? |
| Battery | 800 mAh | 950 mAh | ? | 3,300 mAh | ? |
| Processor | ? | ? | Apple A6 | 1.8 GHz Qualcomm Snapdragon 450 | ? |
| RAM | ? | ? | ? | 2 GB * | ? |
| Storage | ? raw hardware | ? raw hardware | 64 GB * | 32 GB * | ? raw hardware |
| Main Camera | Yes | 3 megapixel | 8 megapixel | 13 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | QCIF (176 x 144) | 1080p HD | 1080p HD | ? |
| Front Camera | - | - | Yes | 5 megapixel | - |
| Weight |
3 oz (85g) |
4 oz (113g) |
3.95 oz (112g) |
6.07 oz (172g) |
4.2 oz (119g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
4.87" x 2.31" x 0.3" (124 x 59 x 7.6 mm) |
6.31" x 3.06" x 0.33" (160 x 78 x 8.4 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | iOS | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 29, 30, 38, 41, 66, 71 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | HSDPA 3.6 | LTE (Cat 3) | LTE (Cat 6) | HSDPA 3.6 |
| Features | |||||
| Fingerprint Reader | - | - | - |
Yes stand-alone |
- |
| Flashlight | - | - | - | Yes | - |
| GPS / Location | - | Yes | n/a | n/a | - |
| Accessibility | |||||
| Adjustable Text Size | - | - | n/a | n/a | - |
| Hearing Aid Compatible | - |
Yes M3, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | - | Yes | - | - | - |
| Ringer Profiles | - | Yes | - | - | Yes |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a | n/a | - |
| NFC | - | - | - | Yes * | - |
| USB | - |
Yes Micro-USB |
Yes |
Yes USB Type C |
Yes |
| Wi-Fi | - | - |
Yes 4 (802.11 a,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
- |
| Contacts | |||||
| Picture ID | Yes | Yes | n/a | n/a | Yes |
| Ringer ID | Yes | Yes | n/a | n/a | Yes |
| Voice Dialing | - | - | n/a | n/a | Yes |
| Customization | |||||
| Custom Graphics | Yes | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | n/a | Yes |
| Real-Music Ringers | - | Yes | n/a | n/a | Yes |
| Data & Network | |||||
| Data Tethering | - | Yes | n/a | n/a | Yes |
| WAP / Web Browser | Yes | Yes | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Stylus | - | - | - | Yes | - |
| Touch Screen | - | - |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | - | Yes | - | Yes | Yes |
| Messaging | |||||
| Email Client | - | Yes | n/a | n/a | Yes |
| EMS / Picture Messaging | Yes | - | n/a | n/a | - |
| Instant Messaging | - | Yes | n/a | n/a | - |
| MMS | Yes | Yes | n/a | n/a | Yes |
| Text Messaging Templates | Yes | Yes | n/a | n/a | Yes |
| Music | |||||
| FM Radio | - | - | - | Yes | Yes |
| Headphone Jack (3.5mm) | - | - | Yes | Yes | - |
| Music Player | - | Yes | n/a | n/a | Yes |
| Photo & Video | |||||
| DLNA | - | - | - | Yes | - |
| TV Output | - | - | Yes | - | - |
| Video Calling | - | - | n/a | n/a | Yes * |
| Productivity | |||||
| Alarm | Yes | Yes | n/a | n/a | Yes |
| Calculator | Yes | Yes | n/a | n/a | Yes |
| Calendar | Yes | Yes | n/a | n/a | Yes |
| To-Do List | Yes | - | n/a | n/a | Yes |
| Voice Memo | Yes | Yes | n/a | n/a | Yes |
| Software | |||||
| Games | Yes | Yes | n/a | n/a | Yes |
| Java (J2ME) | Yes | Yes | n/a | n/a | Yes |
| Voice | |||||
| HD Voice | - | - | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | - | n/a | n/a | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | ZTE Z331 | Apple iPhone 5 (CDMA / global) | LG Stylo 4 | Sony Ericsson K850 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | ZTE Z331 | Apple iPhone 5 (CDMA / global) | LG Stylo 4 | Sony Ericsson K850 |
